Table of Content

15 September 1997, Volume 17 Issue 3

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THE STUDY OF LIMESTONE MIXED EVERGREEN AND DECIDUOUS BROADLEAF FOREST CLASSFICATION IN GUANGXI

Wang Xian-pu, Sun Shi-zhou, Li Xin-xian

1997, 17(3):  235-273. 

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There is larger area of limestone mountain in Guangxi in which occurs a special limestone mixed evergreen and deciduous broadleaf forest. It often forms mosaic distribution with together evergreen broadleaf forest in acid soil area. This paper mainly deals with its classification and geographical distributional law. A preliminary classification system has been set up in Guangxi. They are discribed as follows:1. Limestone mixed evergreen and deciduous broadleaf forest dominated by Fagaceae and other families 1.1 Limestone mixed evergreen and deciduous broadleaf forest dominated by Cyclobalanopsis glauca and other deciduous broadleaf trees. 1.1.1 Mixed forest dominated by Cyclobalanopsis glauca and Bridelia fordii 1.1.2 Mixed forest dominated by Cyclobalanopsis glauca and Choerospondias axillaris. 1.1.3 Mixed forest dominated by Cyclobalanopsis glauca and Aphanamix grandifolia. 1.1.4 Mixed forest dominated by Cyclobalanopsis glauca and Celtis biondii. 1.1.5 Mixed forest dominated by Cyclobalanopsis glauca and Platycarya strobilacea. 1.1.6 Mixed forest dominated by Cyclobalanopsis glauca and Platycarya longipes. 1.1.7 Mixed forest dominated by Cyclobalanopsis glauca and Sapium rotundifolium. 1.1.8 Mixed forest dominated by Cyclobalanopsis glauca and Pistacia chinensis. 1.1.9 Mixed forest dominated by Cyclobalanopsis glauca and Pteroceltis tatarinowii. 1.1.10 Mixed forest dominated by Cyclobalanopsis glauca、Wrightia pubescens and Boniodendron minor. 1.1.11 Mixed forest dominated by Cyclobalanopsis glauca、Lysidice rhodostegia and Adenanthera pavonina. 1.1.12 Mixed forest dominated by Cyclobalanopsis glauca、Garcinia paucinervis and Radermachera sinica. 1.2 Limestone mixed evergreen and deciduous broadleaf forest dominated by Cyclobalanopsis glaucoides and other deciduous trees. 1.2.1 Mixed forest dominated by Cyclobalanopsis glaucoides and Platycarya glandulosa. 1.3 Limestone mixed evergreen and deciduous broadleaf forest dominated by Castanopsis formosana and other deciduous trees 1.3.1 Mixed forest dominated by Castanopsis formosana and Radermachera sinica. 1.4 Limestone mixed evergreen and deciduous broadleaf forest dominated by Castanopsis hainanensis and other deciduous trees 1.4.1 Mixed forest dominated by Castanopsis hainanensis and Sapium rotundifolium. 2. Limestone mixed evergreen and deciduous broadleaf forest dominated by Lauraceae and other families. 2.1 Limestone mixed evergreen and decidecous broadleaf forest dominated by Machilus pauhoi and other deciduous trees. 2.1.1 Mixed forest dominated by Machilus pauhoi and Itoa orientalis. 2.1.2 Mixed forest dominated by Machilus pauhoi and Cladrastis platyphylla. 2.2 Limestone mixed evergreen and deciduous broadleaf forest dominated by Machilus kwangtungensis and other deciduous trees. 2.2.1 Mixed forest dominated by Machilus kwangtungensis and Swida parvifolia. 2.3 Limestone mixed evergreen and deciduous broadleaf forest dominated by Beilschmiedia kweichowensis and other deciduous trees. 2.3.1 Mixed forest dominated by Beilschmiedia kweichowensis and Bridelia fordii. 3. Limestone mixed evergreen and deciduous broadleaf forest dominated by Rubiaceae and Sapindaceae. 3.1 Mixed forest dominated by Canthium dicoccum and Boniodendron minor. 3.2 Mixed forest dominated by Boniodendron minor and Mastichodendron wightianum. 4 Limestone mixed evergreen and deciduous broadleaf forest dominated by Juglandaceae and other families. 4.1 Limestone mixed evergreen and deciduous broadleaf forest dominated by Engelhardtia chrysolepis and other deciduous trees. 4.1.1 Mixed forest dominated by Engelhardtia chrysolepis and Choerospondias axillaris. 4.1.2 Mixed forest dominated by Engelhardtia chrysolepis and Celtis sinensis. 5 Limestone mixed evergreen and deciduous broadleaf forest dominated by Magnoliaceae and other families 5.1 Mixed forest dominated by Kmeria septentrionalis and Styrax suberifolia.

A REVISION OF THE CHINESE ATHYRIUM ROTH (I)-SUBGENERIC CLASSIFICATION OF THE GENUS

Wang Zhong-ren

1997, 17(3):  274-300. 

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Athyrium is one of the largest,complex and extremely difficult genera in taxonomic treatment.The area of China,Himalaya and Japan is the geographic distribution center of the genus.In fact,the species in this genus sensu stricto (Ching) are the remainders after other genera have been separated from the family or the genus Athyrium sensu lato.They are somewhat like a "mixed stew",but not a natural monophyletic group.Some of the subgeneric unites are very active in evolution and with large number of related species,while some others are isolated or unique.There-fore,the size of the infrageneric groups are not equal.Presence or absence of folds on perispore surface is an important character for the subgeneric classification.There are more than 300 Chinese Athyrium species name published,they have been preliminarily treated as 117 species with a number of varieties and hybrids.They are suggested to be classified into 14 sections and 15 series in present paper.

TWO NEW SPECIES OF PYRACANTHA FROM HENAN

Chen Zhi-xiu, Zhao Tian-bang

1997, 17(3):  301-304. 

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A NEW SPECIES OF PARNASSIA FROM YUNNAN

Qian yi-yong

1997, 17(3):  305-307. 

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ADDITIONS TO THE FLORA OF GUIZHOU

He Shun-zhi

1997, 17(3):  308-312. 

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The present paper increases the flora of Guizhou Province.fourteen species,one variety and six genera are new records to Guizhou Province.These species are:Tanakaea omeiensis Nakai,Chloranthus sessilifolius K.F.Wu,Spergula arvensis L.,Aruncus sylvester Kostel.,Cassia nomame (Sieb.) Kitagawa,Boenninghausenia albiflora Reichb.var.pilosa Z.M.Tan,Viola magnifica C.J.Wang et X.D.Wang,Thyrocarpus glochidiatus Maxim.,Gleadovia mupinense Hu,Plantago lanceolata L.,Triplostegia glandulifera Wall.ex DC.,Gynostemma laxum (Wall.) Cogn.,Gynostemma pentagynum Z.P.Wang,Ophiopogon bockianus Diels,Caulokaempferia yunnanensis (Gagnep.) R.M.Smith.The six new recorded genera are Spergula L.,Tanakaea Franch.et Savat.,Aruncus Adans.,Gleadovia Gamble et Prain,Triplostegia Wall.ex DC.,Caulokaempferia K.Larsen.All the voucher specimens of the present study are preserved in the Herbarium of Guizhou Institute of Chinese Materia Medica (HGCM).

ADDITIONS TO THE FLORA OF ANHUI PROVINCE

He Yun-he

1997, 17(3):  313-314. 

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6 species are reported as new records of Flora from Anhui Province in this paper.They are Trema levigata Hand.-Mazz.,Tilia membranacea H.T.Chang,Spiraea myrtilloides Rehd.,S.dasyantha Bge.,Elaeagnus difficilis Serv.,Campanula punctata Lam.

A STUDY ON THE LEAF STOMATA CHARACTERISTICS OF VITIS SPECIES NATIVE TO CHINA

Zhang Yan-long, Niu Li-xin

1997, 17(3):  315-319. 

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The grapevine leaf stomatal characteristics research was conducted on 19 wild vitis species or subspecies native to China.The results showed that the stomata longitude had an important part in the grapevine classification among the different vitis species,and that the relative density of stomata (the ratio of the relative area of all stomatal complex to the total leaf area) was linearly correlated with the leaf longitude within one species and the stomata density was negtively correlated with the stomata longitude.All the observed stomatal complexes types were anomocytic ones.

ISOLATION AND CULTURE OF PROTOPLAST FROM EMBRYONIC SUSPENSION CELL OF PINUS TAEDA LINN.

Tang Wei, Ou Yang-Fan, Guo Zhong-chen

1997, 17(3):  320-324. 

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The influences of enzyme combination,osmoticum,and suspension cell growth phase on both protoplast yield and protoplast viability were investigated with embryonal suspension cell from mature zygotic as materials of isolation protoplast.The results show that protoplast yield and protoplast viability of suspension cells on linear phase are the highest under the enzyme combination cellulase RS 1%+cellulase R-10 2.5%+pectolyase Y-23 0.2% and osmoticum mannital.After protoplast were cultured on DCR medium,the first division of protoplast appeared on 6th day,embryonic cell mass appeared on 4th week,embryonal suspensor mass appeared on 8th week,and somatic embryo with primary cotyledonary appeared on 16th week.

THE RELATIONSHIPS BETWEEN SEASONAL CHANGES OF PHOTOSYNTHESIS AND TRANSPIRATION OF PUCCINELLIA TENUIFLORA AND THE CLIMATE FACTORS

Yan Xiu-feng, Sun Guo-rong, Xiao wei

1997, 17(3):  325-331. 

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The seasonal changes of photosynthesis and transpiration of both natural and planted one to three years Puccinellia tenuiflora,climate factors such as sun quantity,air temperature,earth temperature,relative humidity,rainfall and evaporation are measured.The relationships between seasonal changes of photosynthesis and transpiration of P.tenuiflora and the climate factors are analysed by correlation coefficient and path coefficient analysis.The earth temperature in the analysed climate factors directorly affects the seasonal changes of the photosynthesis and transpiration characters such as photosynthesis rate,transpiration rate and water use efficiency of P.tenuiflora most.

STUDIES ON MANGROVES AT DAYA BAY PART TWO:ECO-PHYSIOLOGY OF SOME MANGROVE PLANTS AT AOTOU PORT

Miao Shen-yu, Lin Hai-bo, Chen Xue-mei

1997, 17(3):  332-337. 

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The rates of photosynthesis,respiration and transpiration of three mangrove plants growing at Aotou Port of Daya Bay were determined.The results show that the diurnal changes of photosynthetic rates present curves of two-peak,The order of means are Agiceras corniculatum >Bruguiera gymnorrhiza >Avicennia marina.The Change ranges of respiratory rates are smaller than that of photosynthetic rates of all three species.Different from photosynthesis,the order of means of respiratory rates are A.Corniculatum >A.marina >B.gymnorrhiza.These suggust that A.marina has the lowest productivity among the three species and it may be related to the harsher habitat which A.marina grows.Transpiration rates appear curves of one peak.Due to the salt-secreting or salt-excuding species,the means of A.corniculatum is close to A.marina and higher than that of B.gymnorrhiza.In general,these three mangrove plants have high photosyntic rates,low respiratary and transpiration rates and are survivals of the special habitat of salt and inundation.

THE AGE EFFECT OF CUTTING PROPAGATION OF PICEA KORAIENSIS AND ITS PHYSIOLOGICAL MECHANISM

Wang Qiu-yu, Zhao Li-hui, Wang Fu-lai, Liu Xiu-qin

1997, 17(3):  338-343. 

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While carring out the cutting propagation of Picea koraiensis in different age,the endogenous plant hormones and nutrient elements in the cuttings have been measured.The results show that ①there is clear age effect in rooting ability of the cuttings.The rooting percent of the cuttings are gradually reducing along with the increase of the mother tree age.②It has significent correlative relationship between the rooting rate and endogenous plant hormones contents of the cuttings in different age.The higher the rooting rate of the cuttings is,The more the IAA and GA₄ contents in the cuttings.Conversely,this trend is reversed for ABA concentrations in the cuttings.③ The rooting rate of the cuttings is also influenced by nutrient level in the cuttings,especially N and K contents.The increase of the mother tree age is bound to follow a slight decrease of N and K contents in the cuttings.So dose the rooting rate of the cuttings.

STUDY ON COMPARING MORPHOLOGY AND ANATOMY OF ROOTS SYSTEM OF WILD AND CULTIVATED SAPOSHNIKOVIA DIVARICATA

Gao Zhi, Liu Ming-yuan

1997, 17(3):  344-347. 

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This paper studied the external morphology and internal structure of the wild and cultivated Saposhnikovia divaricata.The results indicated:the colour of cultivated roots are pale yellow and have many lateral roots.The wild and cultivated Saposhnikovia divaricata have the same internal structute,there are similar number of oil canal and same ratio of phloem to xylem in the perienial wild and two years cultivated Saposhnikovia divaricata.We suggested that the two years cultivated Saposhnikovia divaricta can be used in production.

CAMPTOTHECA LOWREYANA,A NEW SPECIES OF ANTI-CANCER HAPPYTREES

Li Shi-you

1997, 17(3):  348-352. 

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