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    Bulletin of Botanical Research 1987 Vol.7
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    A REVISION OF THE GENUS PARNASSIA (SAXIFRAGACEAE) IN CHINA
    Ku Tsue-chih
    Bulletin of Botanical Research    1987, 7 (1): 1-61.  
    Abstract260)      PDF(pc) (3523KB)(246)       Save
    After investigating the external morphology of the genus Parnassia the author realizes that the morphological variance of the staminodes may reflect the main evolutionary course of the genus and utilizes them as the criterion for discriminating the primary infrageneric taxa. The taxa with terete simple or 2-lobed staminodes are considered Primitive, while those with the flattened, lobed or deeply divided ones advanced. The characters of anther and petal margine and number of the cauline leaves are used to discern subsections and series. According to the point of view just mentioned, the classification constructed by Handel-Mazzetti (1941) is adopted here but with considerable addition and emendation. The conspectus of the revised classification for the chinese species is as follows. Sect. 1. Saxifragastrum. Staminodes terete simple, rounded and discoid at the apex. Ser. 1. Saxifragastrum. Basal leaves general 3——5 rarely 2 or 6——9. Ser. 2. Rosulatae. Basal leaves 10——20, rosulate. Sect. 2. Cladoparnassia. Staminodes tereta, 2-lobed at the apex. Sect. 3. Odontohymen. Staminodes flattened, 5——7-dentate at the apex. Sect. 4. Nectarotrilobos. Staminodes flattened, 3-lobed sel-dom 4——5-lobed. Subsect. 1. Nectarotrilobos Connective not projected at the apex. Ser. 3. Luteae. Scape without leaf. Ser. 4. Nectarotrilobos. Scape with one leaf. Ser. 5. Lijiangenses. Scape with two leaves. Subsect. 2. Xiphosandra. Connective projected at the apex. Sect. 5. Nectarobilobos. Staminodes 2-lobed, with equal lob-es. Scape with two leaves. Sect. 6. Allolobos. Staminodes flattened, 5-lobed seldom 6-lobed, with unequal lobes. Sect. 7. Fimbripetalum. Staminodes deeply divided into 3 filiform branches, each ending in a globose gland at the apex. Ser. 6. Amoenae. Petals fimbriate at the lower margin. Ser. 7. Fimbripetalum. Petals fimbriate around the whole margin. Sect. 8. Nectaroquinquelobos. Staminodes deeply divided into 5 filiform branches, each ending in a globose gland at the apex. Ser. 8. Gansuenses. Petals fimbriate at the lower margin. Ser. 9. Nectaroquinquelobos. Petals fimbriate at the whole margin. Sect. 9. Parnassia. Staminodes deeply divided into 7——23 filiform branches, each ending in a globose gland at the apex. The genus Parnassia consists of 9 sections and about 70 species, widespread in alpine regions of northern hemisphere,mainly of Asia. In the present paper 59 species, i. e. 82 percent of the total number of the genus, are recognized from China, 46 being endemic. In the montane regions of southwest China concentrate most of them, about 48 species, belonging to 7 sections, mainly including the two primitive ones, Sect. Saxi-fragastrum and Sect. Cladoparnassia, and the two more advanced ones, Sect. Odontohymen and Sect. Nectarotrilobos. Thus Southwest China is considered to be the centre of distribution and differentiation and also probably to be the contre of origin of the genus Parnassia.
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    A NEW SPECIES OF MICHELIA FROM CHINA
    Zheng Qing-fang, Lin Mu-mu
    Bulletin of Botanical Research    1987, 7 (1): 63-65.  
    Abstract348)      PDF(pc) (168KB)(190)       Save
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    CHUHSINGIANUM,A NEW SUBGENUS OF SEDUM FROM CHINA
    Fu Kun-tsun
    Bulletin of Botanical Research    1987, 7 (1): 67-70.  
    Abstract310)      PDF(pc) (226KB)(150)       Save
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    SOME ADDITIONS AND CORRECTIONS TO THE FERN GENUS PHANEROPHLEBIOPSIS CHING
    R. C. Ching
    Bulletin of Botanical Research    1987, 7 (1): 71-75.  
    Abstract268)      PDF(pc) (308KB)(158)       Save
    The genus Phanerophlebiopsis Ching was first proposed in 1965(Acta Phytotax. Sinica 10:115) with four species recognized.It seems quite certain that the genus has the province Kweichow as its centre of distribution and developmont thence it spreads eastwardly to the province Hunan, southwardly to Kwangsi and westwardly to the eastern part of Szechuan. The present paper adds four more species to this endemic genus, thus there being altogether eight species known of the region.
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    NEW SPECIES OF TRAPA AND NAJAS FROM JIANGXI,CHINA
    Guan Shao-fei, Lang Qing
    Bulletin of Botanical Research    1987, 7 (1): 77-80.  
    Abstract271)      PDF(pc) (222KB)(134)       Save
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    A NEW SPECIES OF TUPISTRA FROM GUANGXI
    Wan Yu
    Bulletin of Botanical Research    1987, 7 (1): 81-83.  
    Abstract297)      PDF(pc) (192KB)(211)       Save
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    NEW TAXA OF MICHELIA FROM YUNNAN
    Law Yuh-wu, Zhou Ren-zhang
    Bulletin of Botanical Research    1987, 7 (1): 85-87.  
    Abstract289)      PDF(pc) (188KB)(138)       Save
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    NEW SPECIES FROM ZHEJIANG
    Fang Yun-yi
    Bulletin of Botanical Research    1987, 7 (1): 89-93.  
    Abstract257)      PDF(pc) (294KB)(143)       Save
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    TAXA NOVA LABIATARUM XINJIANGENSIUM
    Yang Chang-you, Wang Bin
    Bulletin of Botanical Research    1987, 7 (1): 95-103.  
    Abstract304)      PDF(pc) (534KB)(173)       Save
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    STRUCTURE AND FUNCTION OF PLANT MICROBODIES
    Chen Zu-keng
    Bulletin of Botanical Research    1987, 7 (1): 105-126.  
    Abstract644)      PDF(pc) (2149KB)(177)       Save
    This paper is a review article, which contains following contents:1. History of research and its classification on plant microbodies; 2. The morphology and ultrastructure feature of microbodies; 3. Distribution of microbodies in various plant tissues A. Angiosperm B. Gymnosperm C. pteridophyta D. Bryophyta 4. The function of plant microbodies; 5. The biogenesis of microbodies. Of which, the data of gymnosperm essentially are the result of original research on plant microbodies and are included some microphotographs of electron microscope.
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    A PRELIMINARY STUDY OF PINUS YUNNANENSIS VAR.TENUIFOLIA FORMATION OF GUANGXI
    Wang Huen-pu
    Bulletin of Botanical Research    1987, 7 (1): 127-150.  
    Abstract324)      PDF(pc) (2197KB)(174)       Save
    Pinus yunnanensis var. tenuifolia Formation is extensively distributed in the hills and mountains with an altitude from 300-1600m. along the lower Nanpanjiang river. 11 plant associations have been found in this area. They are described as follows:1. Pinus yunnanensis var. tenuifolia-Quercus Yuii-Wend-landia uvarifolia subsp. dunniana-Microstegium vagans+Pogonatherum paniceum Association. 2. Pinus yunnanensis var. tenuifolia-Quercus variabilis-Quercus yuii-Miscanthus floridulus+Pogonathernm paniceumAssociation. 3. Pinus yunnanensis var. tenuifolia-Quercus fabri-Vacci-nium sprengelii-Arundinela nepalensis+Pogonatherum pani-ceum Association. 4. Pinus yunnanensis var. tenuifolia-Schima wallichii-Rhodomyrtus tomentosa-Dicranopteris dichotoma Association. 5. Pinus yunnanensis var. tenuifolia-Wendlandia uvarifo-lia subsp. dunniana-Arundinella nepalensis+Pogonatherum pa-niceum Association 6. Pinus yunnanensis var. tenuifolia-Phyllanthus emblica-Eulaliopsis binnata+Heteropogon contortus Association. 7. Pinus yunnanensis var. tenuifolia-Vaccinium sprengelii-Cymbopogon caesius+Eulalia speciosa Association. 8. Pinus yunnanensis var. tenuifolia-Phyllanthus emblica-Eulalia quadrinervis Association. 9. Pinus yunnanensis var. tenuifolia-Arundinella mepalenisis+Cymbopogon caesius Association. 10. Pinus yunnanensis var. tenuifolia-Quercus yuii-Arun-dinella nepalensis Association. 11. Pinus yunnanensis var. tenuifolia-Adiantum flabellula-tum Association.
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    NEW SPECIES OF THE GENUS UIMUS L. FROM NORTHEAST OF CHINA
    Nie shao-quan, Huang Gui-qin
    Bulletin of Botanical Research    1987, 7 (1): 151-154.  
    Abstract213)      PDF(pc) (228KB)(144)       Save
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    EMBRYOGENESIS AND DYNAMICS OF STARCH OF KOREAN PINE
    Jin Chun-ying, Wang Ting-fen
    Bulletin of Botanical Research    1987, 7 (1): 155-162.  
    Abstract276)      PDF(pc) (1717KB)(144)       Save
    In this paper, the observations on te embryogenesis and the process of distribution of starch were reported. Zygote of Korean pine is located at the middle upper part of the arche-gonium, During cell division, the spindle fibre formed by zygo-tes is at an angle to its major axis. The first mitosis produ-ces two free nuclei and during descending, they mitotically divide for the second time. The four free nuclei produced arrange ina tier. The third mitotic division results in eight free nuclei,arranging into two tiers, and the cell wall is formed. Sixteen cells are formed by the fourth division, and arrange in four tiers, forming aproembryo. After one and half months of growth and development, and the embryo selection stage, in the middle of July, it enters the period of young embryo development. In the first ten days of August, the young embryo already undergoes tissue and organ differentiation. At that Time, the starch gradually moves from the micropyle end to the combining site at the opposite end. Seeds ripen at the end of September.
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    CLASSIFICATIO SPECIERUM OPITHAN DRAE(GESNERIACEAE)
    Wang Wen-tsai
    Bulletin of Botanical Research    1987, 7 (2): 1-16.  
    Abstract327)            Save
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    POLLEN MORPHOLOGY OF OPITHANDRA BURTT(GESNERIACEAE)
    Xi Yi-zhen
    Bulletin of Botanical Research    1987, 7 (2): 17-26.  
    Abstract289)      PDF(pc) (1957KB)(154)       Save
    Pollen morphology of Opithandra Burtt has been examined with LM and SEM. The pollen grains suhsphercidal, slightly long. and oblate, 3-colporoidate (most species). and 4-colporoidate(only one species, Opithandra primuloides). Exine reticulate, muri smooth or spinulate. According to width and clear degree of muri, and shape of lumina, pollen grains of this genus may be divided into three groups as follows. 1. Primuloides group including O. sinohenryi, O. primuloides and O. fargesii:muri wide, smooth, width of muri uneven. 2. Dalzielii group including O. dalzielii, O. obtusidentata, O.dinghushanensis and O. cinerea:muri narrow, smooth or with spinules. 3. Acaulis group with only one species, i. e. O. acaulis:reticulation obscure, and spinulate ornamentation distinct.
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    NEW TAXA OF RHODODENDRON FROM ZHEJIANG
    Ding Bing-yang, Fang Yun-yi
    Bulletin of Botanical Research    1987, 7 (2): 27-32.  
    Abstract329)      PDF(pc) (309KB)(122)       Save
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    SYSTEM AND SYNOPSIS OF CORNUS SUBGEN.SYNCARPEA(NAKAI)Q.Y.XIANG(CORNACEAE)
    Xiang Qiu-yun
    Bulletin of Botanical Research    1987, 7 (2): 33-52.  
    Abstract317)      PDF(pc) (1182KB)(177)       Save
    Cornus subgen. Syncarpea (Nakai) Q. Y. Xiang as defined here includes 4 species, 12 subspecies, 3 varieties, and is mainly distributed in East Asia except a few subspecies extending to South Vietnam and Laos. The taxonomic treatment of subgen. Syncarpea is much controversial owing to the diversity of evaluation of characters. A reasonable system reflecting the infra-subgeneric relationships is still lacking. During the researches,the present author found that the species of the subgenus have various habits and buds, which has not been noticed by the other authors. Proposed here is a new system which divides the subgenus into two sections based on leaf duration and if the flower bud is covered or naked. The species of sect. Syncarpea with evergreen leaves and naked flower buds are mainly distributed in the regions south of 30°N, and those of sect. Japonicae with deciduous leaves and covered mixed buds are mainly distributed in the regions north of 30°N (Fig. Ⅱ). The characters of these two sections are undoubtedly adapted to different climates. Fourteen new combinations are made here and nine names are first reduced to be synonyms in this paper.
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    STEREACEAE IN CHINA(Ⅱ)
    Guo Zheng-tang
    Bulletin of Botanical Research    1987, 7 (2): 53-79.  
    Abstract266)      PDF(pc) (1614KB)(124)       Save
    15 species and 1 subspecies, Which belong to Haematostereum, Lopharia and Podoscypha of Stereaceae collected from China, are reported in this paper. Of them, 3 species are new combinations and 2 species are new records in China. They are Haematoste-reum australe (Lloyd) Z. T. Guo, comb. nov., Haematostereum illudens(Berk.) Z. T. Guo, comb. nov., Haematostereum spectabile(Kl.) Z. T. Guo, comb. nov., Lophariar papyracea(Jungh.) Reid and Pcdoscypha glabrescens (Berk. & Curt.) Boidin. All specimens are deposited in the Herbarium Mycologicum Instituti Mic-robiologici Academiae Sinicae, Beijing.
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    AN ANALYSIS OF THE VARIATION PATTERNS OF INFRA-AND INTER-POPULATIONS OF RHODODENDRON OVATUM
    Hsu Ping-sheng, Gu De-xing
    Bulletin of Botanical Research    1987, 7 (2): 81-94.  
    Abstract219)      PDF(pc) (685KB)(132)       Save
    Our previous paper [1] has been concerned with the infraspe-cific variation of the widespread Rhododendron ovatum (Lindl.)Planch. based upon herbarium materials. We have shown that the species varies considerably in such characters as the shape of leaves, with or without an apical notch, margins of calyx-lobes glabrous or with glandular hairs, etc. The present paper deals with a quantitative analysis of the same morphological characters previously studied of a number of local populations of R. ovatum in order to shed some light on the infra-and inter-population variation patterns of the species. Population samplings were carried out during 1983-1984.The sites of populations were as follows:(1) Hangzhou, Zhe-jiang, (2) Huangshan, Anhui, (3) Lushan, Jiangxi, (4) Chong-an, Fujian, (5) Xingan, Guangxi, (6) Chongqing, Sichuan, and(7) Zhongxian, Sichuan (Fig. 1). As a result of a biometrical analysis of the histograms (Fig. 2), polygonal graphs (Fig. 3-4) and scatter diagrams (Fig. 5), we have found that:1. The depth and width of the apical notches of leaves vary at random as a whole, but the variables of Population No.6 are remarkably less than those of the other populations, and the two characters show more or less a correlation in variation. 2. The shape of calyx-lobes of Population No. 6 tends to be broadest below the middle, while those of the other populations are principally broadest in or above the middle. 3. Any of these populations shows a great variability in the amount of marginal hairs of the calyx-lobes, from entirely gla-brous to possessing very many hairs. But the gaverage amount of marginal hairs of Populations No. 5 is distinctly greater than those of the other populations. In general, there may be two trends of topoclinal variation among the populations examined, from those of the north-eas-tern sites to the south and south-western extremes with regard to (a) a general shift of the shape of calyx-lobes from ovate or broadly ovate to elliptic or obovate, and (b) the increase of average amount of marginal hairs of calyx-lobes per population.But the factors besides climate give rise to these variationaltrends deserve further study. Since R. xinganense G. L. Li and R. cvatum are morphologic-ally inseparable, the former is therefore reduced to be a synonym of the latter.
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    NOTULAE DE RANUNCULACEIS SINENSIBUS(Ⅻ)
    Wang Wen-tsai
    Bulletin of Botanical Research    1987, 7 (2): 95-114.  
    Abstract264)      PDF(pc) (1556KB)(157)       Save
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    A STUDY ON THE CYERACEAE PLANTS IH QINGHAI LAKE
    Chen Yao-dong
    Bulletin of Botanical Research    1987, 7 (2): 115-128.  
    Abstract321)      PDF(pc) (1675KB)(281)       Save
    Qinghai Lake is situated in northern-east of Qing Zang plateau (36°32'-27°5'N. 99°36'-100°47'E.), at an altitude of about 3300m, covering an area of 4635 km 2. This saltwater lake is the bigest inland water in China, of which the salty content is about 14.383 g/ml. It's water plants, however, is still little known. This report is based on a collection by the author in 1982,All Cyperaceae plants found in this lake are enumerated, and keys to genera and species are provided. 8 new species belonging to both genera are described. They are as follows:1. Physical condition of Qinghai lake; 2. The key of genera and species of Cyperaceae; 3. Description of new species; 4. Distribution, growth and development of Cyperaceae.
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    A NEW SPECIES OF ARISTOLOCHIA FROM JINFUSHAN
    Yang Zheng-lu, Tan Shi-xian
    Bulletin of Botanical Research    1987, 7 (2): 129-132.  
    Abstract259)      PDF(pc) (206KB)(119)       Save
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    A NEW SPECIES OF THE GENUS MERREMIA DENNST
    Liu Shou-yang
    Bulletin of Botanical Research    1987, 7 (2): 133-136.  
    Abstract279)      PDF(pc) (197KB)(125)       Save
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    A NEW FORMA OF THE SPECIES KEISKEA ELSHOLTZIOIDES MERR
    Guo Xin-hu
    Bulletin of Botanical Research    1987, 7 (2): 137-138.  
    Abstract299)      PDF(pc) (97KB)(116)       Save
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    MATERIALS FOR THE STUDY ON THE GENUS PICEA DIETR.IN NORTHEAST CHINA
    Wu Hong-qi
    Bulletin of Botanical Research    1987, 7 (2): 139-145.  
    Abstract311)      PDF(pc) (452KB)(120)       Save
    In the paper, the author discusses the variances of the clas-sific characters of Picea Dietr. in Northeast China. The steady and various characters are found. As the result, there are 2 species and 2 varieties ( Picea jezoensis Carr., P. jezoensis var. komarovii Cheng et L. K. Fu, P. koraiensis Nakai and P. kora-iensis var. intercedens Y. L. Chou et Tung). Also their distrib-utions are discussed.
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    A NEW VARIETY OF SAMBUCUS SIEBOLDIANA BL. EX NAKAI FROM GREATER KHINGAN MOUNTAINS, CHINA
    Luo Guang-yu, Huang Pu-hwa
    Bulletin of Botanical Research    1987, 7 (2): 147-149.  
    Abstract298)      PDF(pc) (180KB)(115)       Save
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    THE RELATION BETWEEN DIURNAL CHANGE OF NET PHOTOSYNTHETIC RATE OF LEYMUS CHINENSIS POPULATION AND ITS ENVIRONMENTAL CONDITION
    Zu Yuan-gang
    Bulletin of Botanical Research    1987, 7 (2): 151-160.  
    Abstract326)      PDF(pc) (575KB)(178)       Save
    This study examines the natural Leymus chinensis grassland in Northeast China. An object of study is Leymus chinensis population which is constructive population. The study results shows that the diurnal change of photo-synthetic rate of Leymus chinensis population was a curve of double peak. The first peak value appeared around ten o'clock in the morning, which were 2.64g CO 2/m 2 (ground)·hr and second peak value appeared around fifteen o'clock in the afternoon,which were 2.29g CO 2/m 2 (ground)·hr. The total net photosyn-thetic rate were 25.74g CO 2/m 2 (ground)·d. There are close relationships between the diurnal change in the photosynthetic rate of Leymus chinensis population and integ-rated effects of environmental factors. The limiting factors influencing the reduction in the photosynthetic rate at the noontime are the lower air relative humidity and soil moisture content.
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    A REVISION OF THE CHINESE PHYLLAN THODENDRON(EUPHORBIACEAE)
    Li Ping-tao
    Bulletin of Botanical Research    1987, 7 (3): 1-9.  
    Abstract302)      PDF(pc) (521KB)(141)       Save
    The Phyllanthodendron,containing approximately 16 species in the world and widely distributed throughout Malay Peninsula to S. E. China, extending from 95° to 114° of longitude and 5° to 26° of latitude. In China it occurs in the Guizhou, Yuannan, Guangxi and Guandong.In this paper, it includes two sections and ten species, of which one section, four species and one combination are discovered as new and described here.
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    POLLEN MORPHOLOGY OF THE FAMILY RUTACEAE IN CHINA
    Liu Bing-lun
    Bulletin of Botanical Research    1987, 7 (3): 11-56.  
    Abstract366)      PDF(pc) (9311KB)(132)       Save
    The pollen morphology of 52 species and 2 varieties belonging to 21 genera of Rutaceae from China was examined by means of light microscope of which 6 species examined by means of scanning electron microscope. The pollen of Rutaceae belongs to stenopalynous. According to numbere of the opertures and orn-amentation of exine the pollen of the family can be divided into two types:tricolporate and 4-6 colporate. A pollen morphology key has been shown in this paper based on the pollen characters. In addition, new conbination in Zanthoxylum and Fagara and close affinity between Zanthoxylum and Evodia were discussed in the present study The pollen grains of the family prolate-subspheroidal or ob-late,3-6 lobed-circular or subcircular in polar view. Polar axis×equatorial axis=(18.2-72.8)×(12.3-54.6). The smallest pollen are found in Zanthoxylum dimorphophyllum Hemsl., (20.0-25.0) 22.5×15.0(12.5-17.5). The lagest pollen grains are in Micromelum pubescens Bl.,(46.8-72.6)59.8×46.8 (39.0-54.6). Tricolporate pollen type is common in the family, but 4-6 colporate types are rarely found. The colpi are usually long and narrow with membrane The margin of some colpi are usually thickened.Some pollen are syncolpate in polar view, longicolpate with lalongate ora. The colpus and os intersect each other and They form a cross-mark in the equatorial view. Exine about 1.5-4.0 thick,sexine thicker than nexine. The columella layers are clearly visible. The ornamentations of exines are reticulate and striate. Based on numbers of the opertures and ornamentation of exine 21 genera can be divided into two types and four subtypes:1. Tricolporate (1) The tricolporate with reticulate ornametation; (2) Tricol porate with striate ornamentation. 2. 4-6 colporate (1) 4-6 colporate with reticulate ornamentation; (2) 4-6 colporate with striation ornamentation.
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    STUDIES ON THE GENUS RHODODENDRON(Ⅶ)
    Zhao Zhen-ju
    Bulletin of Botanical Research    1987, 7 (3): 57-66.  
    Abstract301)      PDF(pc) (2222KB)(140)       Save
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    A NEW SPECIES OF POPULUS IN TROPICAL FORESTS FROM HAINAN
    Luo Ping, Hong Tao
    Bulletin of Botanical Research    1987, 7 (3): 67-70.  
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    COMPARATIVE STUDY ON THE LEAF STRUCTURE IN POPULUS QIONGDAOENSIS AND P.ADENOPODA
    Li Wen-tian, Xu Bing-wen
    Bulletin of Botanical Research    1987, 7 (3): 71-77.  
    Abstract305)      PDF(pc) (1650KB)(161)       Save
    The leaf structure of Populus qiongdaoensis T. Hong et P. Luo sp. nov. and P. adenopoda Maxim. were studied in the light microscope, the fluorescence microscope and the scanning electron microscope. The differences between them are as follows: Populus qiongdaoensis The upper epidermis is uniseriate. The sponge parenchyma cells are arranged loosely and the axes of its long cells are parallel to the leaf surface. Stoma is sunken or not sunken. The outer walls of the papillae subsidiary cells forming long peristomatal rims which overlap the guard cells.The cuticular striae of stomatal apparatus are coarse and spinous. The outer wall of the lower epidermis is sac-like with short spines. Populus adenopoda The upper epidermis is biseriate. The sponge parenchyma cells are arranged compactly and the axes of its long cells are perpendicular to the leaf surface. stoma is level and never sunken. The outer walls of the subsidiary cells with short rims which always not overlap the outer stomatal rims.The striae of the stomatal apparatus are fine and numerous and extended as lateral wings which connect with the wavy striae of lower epidermal cells.
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    A NEW SPECIES OF ARTEMISIA FROM NORTHEAST OF CHINA
    Chang Gui-yi, Liou Ming-yuan
    Bulletin of Botanical Research    1987, 7 (3): 79-82.  
    Abstract240)      PDF(pc) (231KB)(128)       Save
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    A NEW VARIETY OF MERREMIA SIBIRICA(LINN.) HALL.F.
    Shen Bao-an, Liu Xiao-long
    Bulletin of Botanical Research    1987, 7 (3): 83-84.  
    Abstract270)      PDF(pc) (102KB)(164)       Save
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    STEREACEAE IN CHINA(Ⅲ)
    Guo Zheng-tang
    Bulletin of Botanical Research    1987, 7 (3): 85-112.  
    Abstract414)      PDF(pc) (1679KB)(163)       Save
    17 species,which belong to Stereopsis, Stereum and Xylobolus of Stereaceae collected from China, are reported in this paper.Of them, 3 species are new species, 1 species is new combination, and 2 species are new records in China. They are Stereopsis crassipileata Z. T. Guo, sp. nov., Stereopsis gracilistipitata Z.T. Guo, sp. nov., Stereopsis pseudocupulata Z. T. Guo, sp.nov., Stereopsis craspedia (Fr.) Z. T. Guo, comb. nov., Stereopsis his-cens (Berk. & Rav.) Reid and Stereopsis vitellina (Plowr.) Reid.All specimens are de posited in the Herbarium Mycologicum In-stituti Microbiologici Academiae Sinicae, Beijing.
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    A NEW SPECIES OF HUPERZIA
    Cheng Jing-fu
    Bulletin of Botanical Research    1987, 7 (3): 113-115.  
    Abstract281)      PDF(pc) (164KB)(149)       Save
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    THE SUBAERIAL CYANOPHYCEAE OF TUNDRA ZONE OF CHANGBAI MOUNTAIN
    Wang Ce-zhen
    Bulletin of Botanical Research    1987, 7 (3): 117-122.  
    Abstract302)      PDF(pc) (345KB)(126)       Save
    This paper records 11 species and varieties, including 1 new variety. They belong to 8 genera and 4 families of Cyanop hyta, respectively. They are Chroococcus tenax (Kirch) Hieron var. minor. var. nov.; Gloeocapsa montana Kutzing; Gloeocapsa incrustata Chu; Gloeocapsa ralfsiana (Harvey) Kutzing; Gloeoth-ece rupestris (Lyngb.) Bornet var. minor Jao; Aphanothece saxicola Nageli; Aphanothece castagnei (Breb.) Rabenhorst; Aphanocapsa musicola (Mengh) Wille; Schizothrix lamyi Gamont; Nostoc paludosum Kutzing ex Born et Flahj Stigonema minutum (Ag.) Hass; Stigonema mamillosum (Lyngb.) Ag. ex Born. Six species of them are first reocorded in Jilin Province and one variety are prososed as new to phycological science. In Tundra zone the distribution of these subaeria Cyanop-hyceae are determined by aerial moisture and water content of upper layer of soil.
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    KARYOTYPE ANALYSIS OF 3 SPECIES OF GENUS PODOCARPIUM AND CHROMOSOME NUMBERS OF 2 SPECIES OF GENUS DESMODIUM
    Cui Xian-ju
    Bulletin of Botanical Research    1987, 7 (3): 123-130.  
    Abstract320)      PDF(pc) (867KB)(182)       Save
    The present paper deals with a study of the karyotype analysis of 3 species of genus Podocarpium and chromosome numbers of 2 species of genus Desmodium. The chromosome numbers and karyotypes of 2 species of genus Podocarpium ( P. williamsii (Ohashi)Yang et Huang and P. duclouxii (Pamp.) Yang et Huang) and chromosome numbers of 2 species of genus Desmodium ( D. cauda-tum(Thunb.)DC. and D. yunnanense French.)are reported for the first time. The chromosome numbers of 5 species tested have been found to be 2n=22 uniformly. 24 chromosomes are often found in root-tip cells of P. williamsii, on the basis of observing a lot of cells, I find that chromosome number 5 is easily separable into two parts at the kinetochore. I think, therefore, 24 chro-mosomes are result of the separation of chromosome number 5 caused by testing process, not occured naturally. The karyotype formula are as follows: P. podocarpum, 2 n=2 x=22=18 m+4 sm P. williamsii, 2 n=2 x=22=10 m+12 sm P. duclouxii, 2 n=2 x=22=14 m+8 sm Photomicrographs of the chromosome complement and the idiograms are shown in plate Ⅰ and Figs. Ⅰ. Measurements in microns of the chromosome sets are given in Table 2. Accarding to Stebbins, the karyotype of P. podocarpum belongs to 2A, and those of P. williamsii and P. duclouxii belong to 2B.If the karyotype of P. podocarpum is used as representative of Sect. Podocarpium, those of P. williasii and P. duclouxii as represen-tatives of Sect. Repanda, it is easily concluded that Sect. Podo-carpium is less specialized than Sect. Repanda in genus Podocarpium. To confirm this conclusion, further and more study is needed. Among Sect. Repanda, P. williamsii has more asymmetrical or advanced karyotype. The fact suggests that P. williamsii be more advanced than P. duclouxii. Under the same experiment condition, the size of chromosomes of P. duclouxii is found to be significantly larger than that of P. williamsii. Obashi (1980) found that P. oldhamii (Oliv.)Yang et Huang ( Desmodium oldhamii Oliv.) had large-sized chromo-somes. Combining gross-morphology, Ohashi considered the species as less specialized than the other species of same section.The separation of P. oldhamii from other species of the section as an independant subsection was confirmed correct. Considering the large-sized chromosomes and special gross-morphology (with tuberous root),I think that it is necessary to separats P. duclouxii from other species of the Sect. Repanda as an independent series.
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    THE PEROXIDASE ISOENZYME SPECTRUM ANALYSIS OF FIVE STRAINS OF ALEURITES FORDII
    Huang Jian-ping, Zhu Tao-ying, Chen Yi
    Bulletin of Botanical Research    1987, 7 (3): 131-136.  
    Abstract294)      PDF(pc) (496KB)(200)       Save
    Five strains of Aleurites fordii Hemsl. were showed clear enzymatic bands by their peroxidase and isoenzyme using the polyacrylamide gel electrophoresis technology. The enzymatic band patterns may be divided into three areas according to the darkness and location of the stained bands. The Rf values of the strong bands are almost the same. It shows the close relation-ship of these strains in a species, but the number of other bands in each area and the Rf values of the bands differ from one strain to another show the differences for the strain's classification. The enzymatic band pattern of A. montana is quite different by the research. It has not only the small number of enzymatic bands but also no obvious strong bands compared with the five strains in question. So this work would become a useful means for classification in Aleurites.
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    NOTES ON THE LABIATAE OF CHINA
    Li Hsi-wen
    Bulletin of Botanical Research    1987, 7 (3): 137-138.  
    Abstract255)      PDF(pc) (101KB)(142)       Save
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