Revision of the North American lichen genus Ahtiana (Parmeliaceae)

被引：5
|
作者：
Thell, A
Goward, T
Randlane, T
Karnefelt, EI
Saag, A
机构：
[1] UNIV BRITISH COLUMBIA,DEPT BOT,HERBARIUM,VANCOUVER,BC V0E 2B1,CANADA
[2] TARTU STATE UNIV,INST BOT & ECOL,TARTU 202400,ESTONIA
来源：
BRYOLOGIST | 1995年 / 98卷 / 04期
关键词：
D O I：
10.2307/3243591
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
The formerly monotypic genus Ahtiana (type species: A. sphaerosporella (Mull. Arg.) Goward is shown to include two additional species, A. aurescens (Tuck.) Thell & Randl. and A. pallidula (Riddle) Goward & Thell. All three species are endemic to North America, and are characterized by their greenish yellow upper surface, globose ascospores, and caperatic acid in the medulla. The habitat ecology of these lichens is very specialized. Ahtiana is presumably most closely related to Tuckneraria Randl. & Thell and other cetrarioid genera having globose ascospores.
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页码：596 / 605
页数：10
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