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Botânica 62 - Texto completo - Instituto Anchietano de Pesquisas ...

Botânica 62 - Texto completo - Instituto Anchietano de Pesquisas ...

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REVISÃO TAXONÔMICA DE APHELANDRA R. BR.<br />

(ACANTHACEAE) DE COROLA CURTO-BILABIADA<br />

Sheila Regina Profice 1<br />

Regina Helena Potsch Andreata 2<br />

Abstract<br />

In this study the <strong>de</strong>limitation of Aphelandra a neotropical genus with about 200<br />

species is discussed. The taxonomic review of Geissomeria species and<br />

varieties, as traditionally <strong>de</strong>limited, showed the imprecise limits to segregate<br />

Geissomeria from Aphelandra. Thus is proposed the reduction of Geissomeria<br />

to a synonymy in Aphelandra. An analytic key for i<strong>de</strong>ntification of ten species<br />

distinguished by corolla with upper and lower lips reduced together with<br />

<strong>de</strong>scriptions, illustrations, comments on taxonomic and nomenclatural issues<br />

and habitat informations are presented. In this group species were recognized<br />

based on vegetative and floral morphological characters. The following new<br />

species were <strong>de</strong>scribed: A.wasshausenii, A.hymenobracteata and A.grazielae.<br />

Two species were exclu<strong>de</strong>d: Geissomeria mexicana Lindau which is found tobe<br />

Holographis, and Geissomeria lolioi<strong>de</strong>s Lindau which is Stenandrium radicosum<br />

Nees.Brazil is an important center of genetic diversity for the genus Aphelandra.<br />

Of the 42 species 33 are exclusively Brazilian. Five patterns of geographic<br />

distribution are proposed and discussed: West-North Amazon; Regional and<br />

Pan-Atlantic en<strong>de</strong>mism, in the Atlantic forest; Central Brazil and North-Central-<br />

Atlantic South American. Maps of the geographic distribuition of these species<br />

are presented. For the group of species studied a morphological cladistic<br />

analysis was un<strong>de</strong>rtaken; the results indicate that the group is monophyletic<br />

within Aphelandra.<br />

Keywords: Aphelandra, Acanthaceae, taxonomy, distribution patterns.<br />

Resumo<br />

Neste trabalho é discutida a <strong>de</strong>limitação <strong>de</strong> Aphelandra, um gênero neotropical<br />

com aproximadamente 200 espécies. A revisão taxonômica dos táxons do<br />

gênero Geissomeria, como tradicionalmente circunscrito revelou a imprecisão<br />

dos limites estabelecidos para segregar esse gênero <strong>de</strong> Aphelandra. Assim, é<br />

proposta a sinonimização <strong>de</strong> Geissomeria em Aphelandra. Para as espécies <strong>de</strong><br />

corola com o lábio superior e inferior reduzido <strong>de</strong> Aphelandra, apresenta-se um<br />

estudo dos caracteres morfológicos vegetativos e florais tendo como base<br />

materiais, incluindo tipos, provenientes <strong>de</strong> diversos herbários nacionais e<br />

estrangeiros. Foram reconhecidas <strong>de</strong>z espécies, sendo três novas para a<br />

Ciência, A.wasshausenii, A.hymenobracteata e A.grazielae. Duas espécies<br />

foram excluídas: Geissomeria mexicana Lindau pertence ao gênero<br />

1 <strong>Instituto</strong> <strong>de</strong> <strong>Pesquisas</strong> Jardim Botânico do Rio <strong>de</strong> Janeiro. Rua Pacheco Leão 915, Rio <strong>de</strong><br />

Janeiro, RJ, 22460-030 (sprofice@jbrj.com.br) - Parte da tese <strong>de</strong> doutorado <strong>de</strong>fendida na Pós-<br />

Gradução em <strong>Botânica</strong>, do Museu Nacional/UFRJ.<br />

2 Universida<strong>de</strong> Santa Úrsula, Laboratório <strong>de</strong> Angiospermas, LCBA Rua Fernando Ferrari 75, Rio <strong>de</strong><br />

Janeiro, RJ, 22231-040 (regina.andreata@gmail.com) - Bolsista <strong>de</strong> produtivida<strong>de</strong> do CNPq.<br />

PESQUISAS, BOTÂNICA Nº <strong>62</strong>:7-70 São Leopoldo: <strong>Instituto</strong> <strong>Anchietano</strong> <strong>de</strong> <strong>Pesquisas</strong>, 2011

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