Table of Content

15 September 1990, Volume 10 Issue 3

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A REVISION OF GENUS DIPSACUS IN CHINA

Ai Tie-rain, Chen Hu-biao, Cheng Zhi-ming, Wang Yue-sheng

1990, 10(3):  1-18. 

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A historical review and brief account of the Chinese Dipsacus are presented as follows, In China this genus comprises 16 species and 2 rarities. of which 3 species and 1 verity are first described here, namely D. daliensis T. M. Ai, D. lijingensis T. M. Ai et H. B. Chen. D. cyanocapitatus C. Y. Cheng et T. M. Ai and D. daliensis var. multifidus H. B. Chen. In addition. D. azureus Schrenk is a new record in China Most of the species of Dipsacus are cen tered in S. W. China and formed the borderline of distribution with one exception of D. japonica Miq.. which is extended into N. E. China, Korea and Japan.

NEW TAXA OF ROSACEAE FROM CHINA

Ku Tsue-chih

1990, 10(3):  19-23. 

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NEW TAXA OF ELYMUS L. FROM XINJIANG

Cui Da-fang

1990, 10(3):  25-38. 

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TRES SPECIES NOVAE GENERIS VITIS E ZHEJIANG

Chiu Pao-lin

1990, 10(3):  39-43. 

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NEW TAXA OF SEDUM FROM ANHUI

Wang De-qun, Wu Zu-fa, Yen Gen-huo

1990, 10(3):  45-50. 

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A NEW SPECIES OF MAIANTHEMUM——M. NANCHUANENSE

Li Heng, Hueng Jin-Ling

1990, 10(3):  51-53. 

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A NEW SPECIES OF ASTEROCAPSA CHU(CHROOCOCCACEAE)

Cheng Zi-jun, Cai Hui-zhen

1990, 10(3):  55-56. 

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NEW TAXA OF GENUS PHLEGMARIURUS FROW CHINA

Ma Chi-yun

1990, 10(3):  57-60. 

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A NEW SPECIES OF ASTER FROM SICHUAN

Zhu Zheng-yin, Min Bai-qing

1990, 10(3):  61-63. 

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A NEW SPECIES OF THE GENUS SIROCOCCUS

Li Rong-xi, Shang Yan-zhong, Wang Dong-sheng

1990, 10(3):  65-67. 

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A NEW VARIETY OF SORBUS FROM SHANDONG

Liang Shu-bin

1990, 10(3):  69-70. 

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A NEW VARIETY OF GYNOSTEMMA YIXINGENSE

Ding Jian-nan

1990, 10(3):  71-72. 

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HENGDUANG-HIMALAYAN MTS. (HH), A SPECIAL AREA FROM THE FLORISTIC POINT OF VIEW FOR ARTEMISIA L.(COMPOSITAE)

Ling Yeou-ruenn

1990, 10(3):  73-92. 

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The "Hengduang-Himalayan Mts.(HH)forest subkingdom" is shown to be Ice Age refuge of Artemisia L. in Quaternary era and also a more recent secondary centre of speciation. The character of the area is discussed from a floristic point of view and it is pointed that the HH may be a specieal area of concentration for Artemisia L. and a secondary centre of distribution for the genus. A catalogue of the genus arranged by floristic elements is added.

CLASSIFICATION AND DISTRIBUTION OF CYRTOGONELLUM CHING

Xie Yin-tang

1990, 10(3):  93-97. 

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Cyrtogonellum is a small genus in Dryopteridaceae, it was first founded by Ching in 1938, but more pteridologists don't known it. Up to now, 8 species of this genus recognized. The province Guizhou is its centre of distribution, thence it spreads northwardly to centre and southeastern part of the province Sichuan, eastwardly to the province Taiwan, southwardly to pass through the province Guangxi to northern part of Viet-nam, westwardly to southeastern part of the province Yunnan The present paper give a description of the genus, a key of the species and a geographical distribution area.

THE EFFECT ON COMMUNITY PHOTOSYNTHETIC RATE OF ANEUROLEPIDIUM CHINENSE AFTER IRRIGATION AND FERTILIZATION TREATMENTS

Qi Qiu-hui, Sheng Xiu-wu, Jiang Shu

1990, 10(3):  99-105. 

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After irrigation and fertilization, the photosynthetic rate of Aneurolepidium chinense community were measured by means of assimilation chamber under field condition, The results are as follows:1. It were measured 23 days after treatments, height of leaf layer of irrigation and irrigation add fertilizatiin were raised 8% and 9%; LAI of community were increased 68.97% and 99.93%; net photosynthesis per day were 2.48 and 3.76 times than contrast respectively; the biggest photosynthetic rate were 2.82 and 3.12 times than contrast respectively.2. After irrigation and fertilization, the type of diurnal change of photosynthetic rate of Aneurolepiium chinense community still were "double peak" curve. They were same with contrast. Only which of irrigation add fertilization (13 days after treatments) was "single peak" type, it hadn't a reduction at the noon time. Showing the type of diurnal change photosynthetic rate may was changed when the conition of water and ferility were better.3. When the temperature and relative humidity were worse or the treatment time was longer, the effects of treatment were apparent. At first measurement, the net photosynthesis per day of irrigation and irrigation add fertilization community were 1.26 and 1.17 times than contrast respecctively. At second measurement, they were 1.4 and 1.84 times respectively. At third measurement, they were 2.48 and 3.76 times respectively.

THE STUDY ON ECOLOGICAL SPECIES GROUPS OF PHYTOPLANKTON IN THE POND

Yang Guo-ting, Zhou Rui-chang, Liu Yun-bo

1990, 10(3):  107-111. 

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In this paper, on the basis of seasonal changes of phytoplankton biomass in the pond, the phytoplankton can be divided into four ecological species groups, according to the adaptive mode of phytplankton to the environment. Ecological species group A has a stronger adaptive ability to the environment, but the competitive ability of that is weaker, The dynamics of ecological species group B is very relative to the content of inorganic nitrogen in the water, and the content of inorganic nitrogen in the water has a little effect on the dynamics of ecological species group C. Ecological species group D always competes with group A and B.

A STUDY ON THE LEAF MORPHOLOGY AND ANATOMY OF LARDIZABALACEAE,SARGENTODOXACEAE AND ITS SIGNIFICANCE IN TAXONOMY

Xia Quan, Kong Jie

1990, 10(3):  113-128. 

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In this paper we sum up the results of investigations on the leaf morphology and anatomy of indigenous plants of Lardizabalaceae (about 5 genera, 22 species, 1 variety) and Sargentodoxaceae. On the base of our research works we propose some of the new characters such as papillary body and interstitial region etc.,and bring out our oppinion about the stomatal apparatus of the two families, which developes C. R. Metcalfe's theory in the aspect.In carring on our studies, we take advantage of the numerical method of fuzzy cluster-analysis to trace out the interrelationship of the OTU's concerned. The result shows that Decaisnea and Sinofranchetia are rather isolated from the rest genera of Lardizabalaceae, on the contrary to the primitive genera, Stauntonia, Holboellia, and Akebia are closly related to comprise the main part of the phylogenetic development of Lardizabalaceae; the leaf characters of Sargentodoxaceae shows remarkable difference from the members of Lardizabalaceae. On the other hand,the paper Idisscusses the interrelationship of characters selected by means of R-analysis. we do think that some of the leaf characters of Lardizabalaceae and Sargentodoxaceae are more stable and varied from different taxa. So it is clear that we may benefit from paying attention to these important characters in our systematic and phylogenetic studies.