Buchnera nordestina (Orobanchaceae), an overlooked new species from Northeast Brazil, with an updated identification key for Buchnera of Brazil

被引：6

作者：

Scatigna, Andre Vito ^{[1
,3
]}

Carvalho Saraiva, Raysa Valeria ^{[2
]}

Mendes Couto, Arthur Filipe ^{[3
]}

Souza, Vinicius Castro ^{[1
]}

Muniz, Francisca Helena ^{[3
]}

机构：

[1] Univ Sao Paulo, Dept Ciencias Biol, Escola Super Agr Luiz de Queiroz, BR-13418900 Piracicaba, SP, Brazil

[2] Univ Fed Maranhao, Ctr Ciencias Humanas Nat Saude & Tecnol, BR-65200000 Pinheiro, MA, Brazil

[3] Univ Estadual Maranhao, Ctr Educ Ciencias Exatas & Nat, Dept Biol, BR-65054970 Sao Luis, Maranhao, Brazil

来源：

ACTA BOTANICA BRASILICA | 2020年 / 34卷 / 04期

关键词：

Brazil; Buchnera; Ceara; cerrado; hemiparasitic; Maranhao; Orobanchaceae; Piaui; restinga; taxonomy; MARANHAO STATE; RESTINGA;

D O I：

10.1590/0102-33062020abb0333

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

A new species of Buchnera (Orobanchaceae) from Northeast Brazil is described and illustrated. Buchnera nordestina was first collected by Dr. Francisco Freire Allemao e Cysneiro ca. 160 years ago and remained undescribed until now. We provide notes on morphology, geographic distribution, and conservation status of the new species. Additionally, we present an updated identification key to all species of Buchnera from Brazil. Buchnera nordestina is characterized by long bracts that are usually two times longer than the calyx tube and by the presence of axillary brachyblasts, both of which are unique features within the genus. The new species occurs in restinga and cerrado vegetation in the Brazilian states of Ceara, Maranhao, and Piaui, and is assessed as Endangered (EN).

引用

页码：789 / 795

页数：7

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