阴山荠属的校订

中国科学院大学学报

阴山荠属的校订

张渝华

（浙江医学研究院药物研究所，杭州）

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1987-06-18 发布日期:1987-06-18
通讯作者: 张渝华

A Revision of Genus Yinshania (Cruciferae)

Zhang Yu-Hua

(lnstitute of Materia Medica, Zhejiang Academy of Medicine, Hangzhou)

Received:1900-01-01 Revised:1900-01-01 Online:1987-06-18 Published:1987-06-18
Contact: Zhang Yu-Hua

摘要/Abstract

关键词: 阴山荠属, 小果组, 阴山荠组, 校订

Abstract:

The genus Yinshania was established by Ma Yu-chuan and Zhao Yi-zhi in 1979,

when only one species, Y. albiflora Ma et Y. Z. Zhao, was discribed from Nei Monggol. In

the present paper the genus Yinshania is revised and four new species, two new varieties and

four new combinetions are reported. There are so far eight species and two varieties in total

in this genus.

Important morphological characters of the genus are analysed, which shows that the lateral

nectariferous glands positioned at lateral base of the brevistamens are triangularovoid; there are

dense minute pustules on the surface of valves, which is easily neglected because the pustules disap-

pear or shrinked when dry; simple or furcate hairs are present in the most species, seldom absent;

the shape of pollen grains is relatively steady, elliptic or long-elliptic, with the polar view trifid-

circular, the equatorial view elliptic or long elliptic, the aperture 3-colpate, exine reticular.

The type of genus Yinshania is changed. Cochlearia acutangula O. E. Schulz was published

in 1929, but Y. albiflora Ma et Y. Z. Zhao in 1979. They are the same species and a new com-

binetion, Y. acutangula (O. E. Schulz) Y. H. Zhang, is made. Thus, the type of genus Yin-

shania should be changed to Y. acutangula (O. E. Schulz) Y. H. Zhang.

Besides, He Ye-qi 6121 (paratype, PE), which is different from Y. acutangula var. albif-

lora, is separated from it and transferred the typical variety, Y. acutangula.

According to the characters of fruit shape the genus Yinshania is divided into two sections,

namely, Sect. Microcarpa and Sect. Yinshania, and then Sect. Yinshania is subdivided into two

series.

Sect. 1. Microcarpa. Silicles widely ovoid or subglobose, 1-2.2 mm long, 0.8-2.2 mm wide,

the ratio of length and width about 1.1.

Sect. 2. Yinshania. Silicles oblong, oblong-ovoid or long-lanceolate, ellipsoidal, 1.5-4.5 mm

long, 0.3-1.5 mm wide, the ratio of length and width about 2.5-3.3.

Ser. 1. Henryanae. Raches flexuose; plants densely hairy; leaves 3-5-foliolate, seldom

pinnatipartite or pinnatisect.

Ser. 2. Yinshania. Raches non flexuose; plants sparsely hairy; leaves pinnatisect or pinna-

tipartite.

The genus Yinshania is a genus endemic to China, with their range from eastern Xizang to

western Hubei from northern Guizhou to central Nei Monggol. The taxa are mostly of a small

area. Sect. Microcarpa is concentrated in Sichuan and southern Gansu; Sect. Yinshania is

spread from Xizang and Sichuan, nouthwards to Gansu, Ningxia, Shanxi, Hebei and Nei Mong-

gol (Ser. Yinshania); and from Sichuan south-eastwards to Guizhou and Hebei (Ser. Henrya-

nae). There are five species in Sichuan. The present paper conjectures that the distribution

centre of the genus is in the Hengduan Mountains and its adjacent areas.

Key words: Yinshania, Sect.Microcarpa, Sect.Yinshania, revision

张渝华. 阴山荠属的校订[J]. 中国科学院大学学报.

Zhang Yu-Hua. A Revision of Genus Yinshania (Cruciferae)[J]. .

[1]	吴鹏程,贾渝. 中国羽藓科植物修订[J]. 中国科学院大学学报, 2000, 38(3): 256-265.
[2]	曹瑞, 刘果厚. 关于阴山荠属的模式[J]. 中国科学院大学学报, 1989, 27(6): 466-469.