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中文
Table of Content
15 June 1985, Volume 5 Issue 2
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MATERIAE NOVAE GENERIS ARTEMISIAE CHINENSIS(Ⅱ)
Ling Yeou-ruenn
1985, 5(2): 1-19.
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LATE TRIASSIC PLANTS FROM XINLONG, SICHUAN PROVINCE
Chen Ye, Chen Ming-hong, Kong Zhao-chen, Yang Xian-he
1985, 5(2): 21-47.
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The present paper deals with fossil plants belonging to 28 genera and 48 species. Fossils were collected from Yingzhuni-anga Formation and Lamaya Formation in Xinlong District, Sichuan province. In this flora the dominant group is Filicopsida (8 genera and 15 species).Of which members of
Dipteridaceae
,
Marattiaceae
and
Osmundaceae
are abundent.
Cycadophyta
consists of 6 genera and 11 species.
Ginkgoales
and
Coniferales
are rich,
Pteridospermae
consists of
Ptilozamites
,
Lepidopteris
and
Ctenozamites
(1 speciesper genus). The characters of this flora closely resembles Yipinglang flora of Yunnan, Late Triassic flora of Hunan and Jiangxi, Xujiahe and Qinghe of Sichuan, Eastern Xizang, Tonkin flora of Vietnam, Nariwa flora of Japan and East Greenland flora etc. but this flora is younger than the Daqiaodi flora found in Baoding. The age of the flora is assigned to middle Keuper-Rhaetic stage of late Triassic, The climatic of Xinlong District in that time was tropical-subtropical.
NEW TAXA OF COCHLIANTHUS AND SPATHOLOBUS FROM CHINA
Wei Chao-fen
1985, 5(2): 49-60.
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THE ALKALOIDS OF ZANTHOXYLUM AND PROBLEM ON THE COMBINATION OF TWO SUBGENERA
Tu Zhi-ben
1985, 5(2): 61-69.
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Phytochemical analyses have been made on the alkaloids in secondary content of several species in subgen.
Zanthoxylum
and
Fagara
of family
Rutaceae
. Their results show the similarities of two biogenic ways and their alkaloids existing in various species of two subgenera. The evidence provided by phytochemistry supports an ar-gument for subgen.
Fagara
as a synonym. of gen.
Zanthoxylum
.
A REVISION OF THE GENUS CHIRITA(GESNERIACEAE)IN CHINA(Ⅰ)
Wang Wen-tsai
1985, 5(2): 71-97.
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TWO NEW SPECIES OF ASTEROCAPSA FROM NORTHEAST OF CHINA
Wang Ce-zhen
1985, 5(2): 99-104.
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THE STUDY LEAF EPIDERMIS AT THE SECTIONAL LEVEL ON CHINESE SETARIA
Chen Shou-liang, Jin Yue-xing, Wu Zhu-jun, Sheng Guo-ying
1985, 5(2): 105-112.
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This paper is attempted to study the leaf epidermis about 15 species of Chinese
Setaria
by current method. The results of our study are summarized as follows:1. The six groups of the structure of leaf epidermis are equal to the six sections of the structure of inflorescence and spikelets in
Setaria
. 2. The long-cells of different shape, size and the nature of their wall can show the features to divide the subtribe, genus or species exactly. 3. In the structure of leaf epidermis of
Setaria
especially the shape of the long-cells, the section of
Ptychophyllum
(A.Braum) Stapf should be as an independent section, the section of
Setaria
is similar to section
Paurochaetium
(Hitchc. & Chase) Pilger, section
Pennisetoides
Tzvel, and section of
Panicatrix
Stapf, the section
Laxispiculosae
S. L. Chen et G. Y. Shang is similar to section
Pennisetoides
Tzvel. by its adalial epidermis and similar to section
Sctaria
by its abaxial epidermis.
NEW TAXA OF THE GENUS TRICHOSANTHES L.(CUCURBITACEAE)FROM CHIHA
Chen Shu-kun
1985, 5(2): 113-121.
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KARYOTYPE OF SOPHORA FLAVESCENS AIT.
Hsu Ping-sheng, Huang Shao-fu
1985, 5(2): 123-127.
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A karyotype analysis for
Sophora flavescens
Ait. (Legumino-sae) has been carried out and the number of chromosomes has been found to be 2
n
=18, in accord with those reported by Kawakami
[3]
, Hexob
[8]
and Kodama
[4]
, but disagreeing with the report of 2
n
=28 of Nagl
[6]
. According to the chromosomal terminology defined by Levan and al.
[5]
, the karyotype for-mula is
K
(2
n
)=18=2
M
(SAT)+10m+4m(SAT)+2sm. In the light of Stebbins'
[7]
classification of karyotypic asymmetry, the ka-ryotype belongs to "2A" type and should therefore be considered as a rather primitive one. Aneuploidy is evident in the ancient and diverse genus
Sophora
L. The genus has a wide range of chromosome num-bers with
n
=14, 11, 9 and 8, with the most frequent number
n
=9. It is generally admitted that
x
=14 is most likely thebasic number for Tribe
Sophoreae
as a whole, and the number has been originated from polyploid caesalpinioid stock. Sub-sequent evolution has involved descending aneuploidy probably due to framentation as proposed by Yakovlev and others
[2]
.The only species:
Sophora japonica
,
S. affinis and S. chinensis
(probably identical with
S. japonica
as suggested by P. C.Tsoong and al.
[1]
) heretofore known with
n
=14 in the genus
Sophora
are all arborescent, while species with lower numbers (
n
=11, 9 and 8) are usually smaller trees or shrubs or even perennial herbs. It seems that the perennials
S. flavescens
and
S. alopecuroides
L. as well must be viewed cytologically as de-rived aneuploids from members having a higher basic number in the genus.
SOME NEW PLANTS FROM GUIZHOU IN CHINA
Xu Zhao-ran, Li Ping-tao
1985, 5(2): 129-132.
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A NEW SPECIES OF GENUS POTAMOGETON L.FROM SHAANX
Guo You-hao, Sun Xiang-zhong, Wang Hui qin
1985, 5(2): 133-135.
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NEW SPECIES QF FUNGI FROM CHANGBAI MOUNTAIN, CHINA(Ⅱ)
Wang Gui-zhen
1985, 5(2): 137-139.
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526
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A NEW SPECIES OF PHAIUS(ORCHIDACEAE)FROM SOUTH CHINA
Tang Chen-zi, Cheng Shi-jun
1985, 5(2): 141-143.
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437
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265
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SOME NEW RECORDS AND RARE TAXA OF ASPERGILLUS OF CHINA
Kong Hua-zhong, Qi Zu-tong
1985, 5(2): 145-150.
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475
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A NEW SPECIES OF PERROTTETIA KUNTH.FROM SICHUAN
Chang Che-yung
1985, 5(2): 151-154.
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A NEW CULTIVATED VARIETY OF JAPANESE LARCH
Wang Chan, Chang Sun-yun, Wang Cui-hua, Wang Li-hua
1985, 5(2): 155-160.
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522
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