Pagamea spruceana (Rubiaceae, Gaertnereae), a new species from flooded white-sand forests in the Upper Rio Negro region, Brazil

被引：4
|
作者：
Borges Prata, Eduardo Magalhaes [1 ]
De Carvalho, Rangel Batista [1 ]
Vicentini, Alberto [1 ]
机构：
[1] Inpa, Programa Posgrad Bot, Av Andre Araujo 2-936, BR-69067375 Manaus, Amazonas, Brazil
来源：
PHYTOTAXA | 2016年 / 269卷 / 03期
关键词：
flooded forests; igapo; Rio Negro; white-sand; PHYLOGENY;
D O I：
10.11646/phytotaxa.269.3.2
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Pagamea spruceana, a new species from Northwestern Amazon, Brazil, is endemic to the Upper Rio Negro region, in the Icana and Uaupes River Basins, and differs from other functionally dioecious species of Pagamea by its capitate and puberulous inflorescences and narrowly elliptic leaf blades with revolute and puberulous margins. Pagamea spruceana is the only species in the genus known from long-term inundated habitats (igapos) in the Amazon. The new species is here described and the affinities with morphologically similar and closely related species are discussed.
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收藏
页码：186 / 192
页数：7
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