Novelties in Adiantum (Pteridaceae) from South America

被引：4

作者：

Prado, Jefferson ^{[1
]}

Hirai, Regina Y. ^{[1
]}

Smith, Alan R. ^{[2
]}

Tuomisto, Hanna ^{[3
]}

机构：

[1] Inst Bot, Herbarium SP, CP 68041, BR-04045972 Sao Paulo, SP, Brazil

[2] Univ Calif Berkeley, Univ Herbarium, 1001 Valley Life Sci Bldg 2465, Berkeley, CA 94720 USA

[3] Univ Turku, Dept Biol, FI-20014 Turku, Finland

来源：

WILLDENOWIA | 2017年 / 47卷 / 03期

关键词：

Adiantum; Amazonia; Brazil; Colombia; Ecuador; ferns; Neotropics; new species; Peru; Pteridaceae; pteridophytes; South America; FERNS; BOLIVIA;

D O I：

10.3372/wi.47.47307

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

We describe two new species of Adiantum (Pteridaceae): A. nodosum and A. pseudocajennense. These species occur in the lowland rainforests of the Amazon Basin at 100-350 m in elevation. Both species have laminae 2-pinnate and grow on waterlogged soil in tall swamp forests, but they differ in the rhizome diameter and degree of incision of the pinnule margins. Currently available information suggests that A. pseudocajennense may be endemic to Ecuador, whereas A. nodosum has a wider distribution and is known from Brazil, Colombia and Peru. For both species we present descriptions, distribution statements, comments and illustrations.

引用

页码：237 / 242

页数：6

共 14 条

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