无轴藓属在河南省的新分布

New Geographical Distribution of Archidium (Musci) in Henan Province

在河南省太行山采集到多态无轴藓(Archidium ohioense)标本,该发现扩展了在中国分布极稀少的无轴藓属植物的地理分布范围.详细描述了该种的形态特征,并绘制了形态解剖图.从形态解剖学上,对相似属进行比较.从植物系统学及个体发育两方面,阐述了无轴藓属在藓类系统演化中的位置.

The specimens of Archidium ohioense Schimp. ex C. Muell. collected from Taihang Mountains is a new geographical distribution in Henan Province. Archidium Brid. is a genus rarely distributing in China. This collection extends the geographical distribution of the genus. There will be scientific value in some extent. The characteristics and distribution of the specimen from Henan Province were described and illustrated. The specimens are deposited in the herbarium of Hebei Normal University （ HBNU ） and the herbarium of Jiaozuo Teacher＇ s College. Comparison was made between Archidium Brid. and genera with similar characteristics. The systematic and evolutional positions on Archidium are discussed from phylogeny and sporophyte ontogeny.