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Physeterostemon (Melastomataceae): a new genus and two new species from the Bahian Atlantic Forest, Brazil
Author(s) -
Goldenberg Renato,
Amorim André M.
Publication year - 2006
Publication title -
taxon
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 81
eISSN - 1996-8175
pISSN - 0040-0262
DOI - 10.2307/25065690
Subject(s) - melastomataceae , calyx , biology , ovary , genus , stamen , atlantic forest , botany , key (lock) , ecology , pollen , endocrinology
A new genus, Physeterostemon , with two new species, P. fiaschii and P. jardimii , is described from southern Bahian Atlantic forest of Brazil. The genus can be distinguished from all other Melastomataceae by its 6‐merous and diplostemonous flowers, toothed and persistent calyx, inferior ovary and dry, capsular fruits. The androecium consists of stamens that are slightly unequal in size with connectives that are unappendaged or minutely ventrally bituberculate and not prolonged below the thecae but dorsally and apically thickened; the anthers are oblong and rounded apically in ventral view, slightly projecting backwards over the connective in lateral view, but with a single ventral pore.