沟稃草属研究札记

NOTES ON THE GENUS ANISELYTRON MERRILL (GRAMINEAE)

摘要:

本文对沟稃草属ＡｎｉｓｅｌｙｔｒｏｎＭｅｒｒｉｌｌ的系统分类进行了初步的整理与修订。认为ＡｕｌａｃｏｌｅｐｉｓＨａｃｋｅｌ（１９０７）［ＮｅｏａｕｌａｃｏｌｅｐｉｓＳ．Ｒａｕｓｃｈｅｒｔ（１９８２）ｐｒｏｎｏｍ．ｎｏｖ．Ａｕｌａｃｏｌｅｐｉｓ］ｎｏｎＣ．ｖ．Ｅｔｉｎｇｓｈａｕｓｅｎ（１８９３）、ＡｎｉｓｅｌｙｔｒｏｎＭｅｒｒｉｌｌ（１９１０）与ＡｎｉｓａｃｈｎｅＫｅｎｇ（１９５８）是个自然类群，应合并为一属，但不宜归入广义的ＣａｌａｍａｇｒｏｓｔｉｓＡｄａｎｓ．（１７６３）．依据国际植物命名法规的规则，应该采用届名ＡｎｉｓｅｌｙｔｒｏｎＭｅｒｒｉｌｌ，其模式种是ＡｎｉｓｅｌｙｔｒｏｎａｇｒｏｓｔｏｉｄｅｓＭｅｒｒ．；确认本属有７种２变种，并拟定了３个新组合：ＡｎｉｓｅｌｙｔｒｏｎａｇｒｏｓｔｏｉｄｅｓＭｅｒｒ．ｖａｒ．ｆｏｒｍｏｓａｎａ（Ｏｈｗｉ）Ｎ．Ｘ．Ｚｈａｏ，Ａ．ｔｒｅｕｔｌｅｒｉ（Ｏ．Ｋｕｎｔｚｅ）Ｓｏｊａｋｖａｒ．ｊａｐｏｎｉｃａ（Ｈａｃｋ．）Ｎ．Ｘ．Ｚｈａｏ和Ａ．ｇｒａｃｉｌｉｓ（Ｋｅｎｇ）Ｎ．Ｘ．Ｚｈａｏ．

Abstract:

The genus Aniselytron Merrill (1910) is restored and 7 species 2 varities are recognized.Aulacolepis Hackel (1907)[Neoaulacolepis S. Rauschert (1982) pro nom. nov. Aulacolepis] non C. V.Ettingshausen (1893) and Anisachne Keng (1958)were treated as synonyms of Aniselytron.3 new conbinations: Aniselytron agrostoides Merrill var. formasana (Ohwi) N. X. Zhao,. treutleri(O.Kuntze) J.Sojak var. japonica (Hack. ) N. X. Zhao and A. gracilis (Keng) N. X. Zhao, are made.