Schwenckia aurantiaca (Solanaceae), a new species from calcareous outcrops of northern Minas Gerais, Brazil

被引:0
|
作者
PAUCAR, J. E. N. N. Y. O. L. G. A. A. R. R. E. A. [1 ]
STEHMANN, J. O. A. O. R. E. N. A. T. O. [1 ]
机构
[1] Univ Fed Minas Gerais, Dept Bot, Inst Ciencias Biol, Ave Antonio Carlos 6627, BR-31270901 Belo Horizonte, MG, Brazil
关键词
Caatinga; corolla appendages; endemic species; Neotropical flora; Schwenckieae;
D O I
10.11646/phytotaxa.508.2.5
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
A new species of Schwenckia (Solanaceae) from calcareous outcrops of the Serra Azul Biological Reserve in northern Minas Gerais, Brazil, is described and illustrated. Schwenckia aurantiaca is an annual plant characterized by a cylindrical corolla tube with five orange, linear appendages, an androecium with two stamens and three, unequal pilose staminodes, and a calyx that tears to the base in fruit. We discuss the morphological characters, habitat, and conservation status of the species, which is assessed as Critically Endangered. Descrevemos e ilustramos uma nova especie de Schwenckia (Solanaceae), que cresce associada a afloramentos de calcario na Reserva Biologica Serra Azul, no norte de Minas Gerais, Brasil. Schwenckia aurantiaca e uma especie anual caracterizada pelo tubo da corola cilindrico, com cinco apendices lineares e alaranjados, presenca de dois estames e tres estaminodios desiguais com filetes pilosos, bem como pelo calice frutifero rasgado na maturacao. Discutimos neste trabalho os caracteres morfologicos, o habitat, bem como o estado de conservacao da especie, considerada Criticamente em Perigo.
引用
收藏
页码:166 / 174
页数:9
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