A New Species of Eriosema (Leguminosae, Papilionoideae, Phaseoleae) from Mato Grosso do Sul, Brazil, with a Secretory Structure Novel to the Genus

被引：9

作者：

Candido, Elisa Silva ^{[1
]}

De Vargas, Wanderleia ^{[2
]}

Vatanparast, Mohammad ^{[3
]}

Mansano, Vidal De Freitas ^{[4
]}

Machado, Silvia Rodrigues ^{[2
]}

Fortuna-Perez, Ana Paula ^{[1
,2
]}

机构：

[1] Univ Estadual Campinas, Inst Biol, Dept Biol Vegetal, Programa Pos Grad Biol Vegetal, BR-13083862 Campinas, SP, Brazil

[2] Univ Estadual Paulista, Inst Biociencias, Dept Bot, Programa Pos Grad Ciencias Biol Bot, BR-18618000 Botucatu, SP, Brazil

[3] Smithsonian Inst NMNH, US Natl Herbarium US, Dept Bot, MRC 166,10th & Constitut Ave, Washington, DC 20560 USA

[4] Inst Pesquisas Jardim Bot Rio de Janeiro, Rua Pacheco Leao 915, BR-22460030 Rio De Janeiro, RJ, Brazil

来源：

PHYTOTAXA | 2016年 / 263卷 / 02期

基金：

巴西圣保罗研究基金会;

关键词：

Cajaninae; Fabaceae; Neotropics; secretory structures; taxonomy; MINAS-GERAIS; EVOLUTION; CAVITIES; CERRADO;

D O I：

10.11646/phytotaxa.263.2.4

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Eriosema grearii, a new species for the genus (Leguminosae, Papilionoideae, Phaseoleae, Cajaninae), is described and illustrated. Similar to E. heterophyllum, it differs from it morphologically by the free (vs. joined) stipules, lax flowers distributed along the inflorescence axis (vs. congested and concentrated at its apex), inflorescences not opposite to the leaves (vs. opposite), and leaflets with secretory cells at the base of trichomes (vs. absence of secretory cells at the base of trichomes). A survey of the leaflet secretory structures revealed that E. grearii has distinct secretory structures, referred here as secretory- base trichomes, and reported for the first time for the Phaseoleae tribe. An identification key for the Eriosema species in Mato Grosso do Sul, where the new species occurs, is provided.

引用

页码：122 / 130

页数：9

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