荨麻科肉被麻属的修正

中国科学院大学学报

荨麻科肉被麻属的修正

陈家瑞

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1990-11-10 发布日期:1990-11-10
通讯作者: 陈家瑞

The Identity of Sphaerotylos C. J. Chen (Urticaceae) with an Amended Description of the Genus Sarcochlamys Gaudich

Chen Chia-Jui

Received:1900-01-01 Revised:1900-01-01 Online:1990-11-10 Published:1990-11-10
Contact: Chen Chia-Jui

摘要/Abstract

摘要：

作者检查了肉被麻属及球隔麻属的模式及其他大量标本后，认为它们是同一个单种属。

它们均具有环状柱头和肉质的具4一5裂的管状花被，这与它们各自的原描述都有所不同。球

隔麻、球隔麻属及球隔麻亚族应分别被归并作为肉被麻、肉被麻属及肉被麻亚族的异名。与此

同时，肉被麻及肉被麻属的定义也应进行修正。

关键词: 球隔麻亚族, 球隔麻属, 球隔麻, 肉被麻属, 修正

Abstract:

In 1985, the present author described a new genus, Sphaerotylos C. J. Chen, and

its type species, S medogensis C. J. Chen, from Xizang (Tibet). A new subtribe, Sphaeroty-

linae was also established under the Trib. Boehmerieae on the basis of the new genus as the

type of the subtribe. The author was aware that Sphaerotylos was closely allied to Sarcochla-

mys Gaudich. from Assam of India to Sumatra of Indonesia, but differed from it by the ring-

shaped stigma, the female perianth 5-partite (connected only at the base), submembranous in

fruit and the ball-like connective; Sarcochlamys had a female flower with a brush-like stig-

ma, the perianth ovoid-tubular, 4-dentate, and an oblique achene enclosed by enlarged fleshy

perianth. The characteristics attributed to the genus Sarcochlamys, however, were known only

from the literature.

Recently, the author again examined the specimens linked with the original description

of the new monotypic genus Sphaerotylos, and first examined the type and many authentic

specimens of an allied monotypic genus, Sarcochlamys, from the Eastern Himalaya, the. He-

ngduan Mountains (N. W. Yunnan) as well as Indo-China. It is found that the female flow-

ers of the genera are characterized by a ring-shaped stigma, a perianth 4-5-lobed, unequal,

membranous, and connected often at base, but in fruit the achens enclosed by enlarged fleshy

perianth in which the lower 1-2-lobes smaller, narrowly ovate to lanceolate, connected only

at base, the rest (2-)3(-4)-lobes connected up to the upper part and dilated at one side as

jar-shaped, and their male flowers have ordinary connectives.

Because the specimens linked with the original description of Sphaerotylos medogensis C.

J. Chen are in the flowering period for the female and at the initial developmental stage of fl-

owering for the male, the description is imperfect. Chen's Sphaerotylos medogensis does not

differ significantly from Sarcochlamys pulcherrima Gaudich. So the newly described genus

Sphaerotylos C. J. Chen should be reduced to Sarcochlamys Caudicn. anl treated as a synon-

ym of it. The subtribe Sphaerotylinae C. J. Chen established on the basis of the type genus Sp-

haerotylos should also be reduced to the subtribe Sarcochlamydinae Wedd. In the meantime,

the original description of the genus Sarcochlamys Gaudich. is amended in this paper. I also

would like to restate that “the ring-shaped stigma is the first discovery in the family Urticace-

ae”, which was reported in my paper in 1985, is true and reliable.

* Sincere thanks are due to Director of the Kew Herbarium for the loan of the type and

authentic material of Sarcochlamys pulcherrim Gaudich.

Key words: Subtrib. Sphaerotylinae, Sphaerotylos, S. medogensis, Sarcochlamys, S. pulcherrima, revision

陈家瑞. 荨麻科肉被麻属的修正[J]. 中国科学院大学学报.

Chen Chia-Jui. The Identity of Sphaerotylos C. J. Chen (Urticaceae) with an Amended Description of the Genus Sarcochlamys Gaudich[J]. .

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