In the braun-blaoquet school the description of synusial associations was not confined to cryptogam communities . 在Braun-Blaoquet学派中，层片群丛的描述不限于隐花植物群落。
2.
In the braun - blaoquet school the description of synusial associations was not confined to cryptogam communities 在braun - blaoquet学派中，层片群丛的描述不限于隐花植物群落。
3.
As a result of its high capability in interception of precipitation and enhanced evaporation of soil surface , the development of microbiotic crusts will more and more threaten the soil water condition which the artificial sand - fixing vegetation should rely on 在1956年固沙区，原来的花棒+柠条+油蒿为主的人工系统向油蒿+雾冰藜+小画眉草+隐花植物为主的半人工半天然系统的演变。
4.
A preliminary analysis of geographical elements of the lichen genus pertusaria from china is given in the text . of the forty - five species , seven ( 15 % ) are endemic to china , two ( 4 % ) are cosmopolitan , nine ( 20 % ) are circumpolar , eight ( 17 % ) are pantropical , seven ( 15 % ) are eurasian , five ( 9 % ) are east asian - north american , seven ( 15 % ) are east - asian and two ( 4 % ) are sino - himalayan . all the specimens examined by the writer are deposited in the following herbaria : hmas - l , hkas , nnu , abl , canl , w and sdnu 本研究所检查的标本保存于以下标本馆：中国科学院微生物研究所菌物标本馆( hmas - l ) 、中国科学院昆明植物研究所隐花植物标本馆( hkas ) 、南京师范大学植物标本室( nnu ) 、加拿大自然历史博物馆( canl ) 、奥地利维也纳自然历史博物馆( w ) 、荷兰cbs的标本室( abl )以及山东师范大学植物标本室( sdnu ) 。
