A New Species for a Monotypic Genus: Anteremanthus (Asteraceae: Vernonieae)
A New Species for a Monotypic Genus: Anteremanthus (Asteraceae: Vernonieae)
复制标题
单型属新种：Anteremanthus（菊科：斑鸠菊科）
DOI：
10.1600/036364414x680771
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发表时间：
2014
影响因子：
1.6
通讯作者：
F. A. Santana
中科院分区：
文献类型：
--
作者：
N. Roque;F. A. Santana
摘要
斑鸠菊族（Vernonieae）是一个自然界的族，主要由盘状和雌雄同花的头状花序、3 - 9列覆瓦状的叶、花柱分枝锐尖，毛状体延伸到分叉以下，以及3-20肋的cypselae所定义。根据形态学和分子系统发育学数据，将其分为21个亚族，127个属和1,000多个种，分布于美洲，亚洲和非洲。亚族Lychnophorinae几乎完全局限于巴西中部高原，有11个属，其中5个是单型的。它通常由在花柱的基部缺乏扩大的节和花药附属物上的腺体，花托通常为萼片状，和毛细管刚毛或扭曲的条带的冠毛来定义。本文描述了一新种--食人鲳Anteremanthus piranii，并对其分布和生态进行了讨论。形态学数据来自巴西巴伊亚Licínio de Almeida市Serra Geral实地考察（2011-2013年）期间收集的标本。食虫虻Anteremanthus piranii与典型种食虫虻A. Hatschbachii主要由头状花序顶生，长6-13 cm（vs.腋生，长20-60 cm），近总苞片在头状花序基部线形（vs.近总苞片卵形），叶粉绿色（vs.绿色），小花20-30朵，花冠白色，花冠裂片、花药和花柱先端淡紫色（vs.小花45-60朵，花冠绿色-乳白色）。文中附有分布图、线条图和新种图片。
Abstract
Vernonieae (Asteraceae) is a natural tribe defined mainly by discoid and homogamous heads, phyllaries imbricate in three to nine series, style branches acute with trichomes extending below the bifurcation, and cypselae 3–20-ribbed. It has been classified with morphological and molecular phylogenetic data into 21 subtribes, 127 genera and more than 1,000 species, distributed in the Americas, Asia, and Africa. The subtribe Lychnophorinae is almost completely restricted to the Central Brazilian Plateau with 11 genera, of which five are monotypic. It is usually defined by the lack of enlarged node at the base of the style and glands on the anther appendages, receptacle usually epaleaceous, and a pappus of capillary bristles or twisted straps. In the present paper we describe a new species, Anteremanthus piranii, and discuss its distribution and ecology. Morphological data were obtained from specimens collected during field trips (2011–2013) in the Serra Geral of Licínio de Almeida municipality, Bahia, Brazil. Anteremanthus piranii can be distinguished from the typical species A. hatschbachii mainly by the capitulescence terminal, 6–13 cm long (vs. axillar, 20–60 cm long), subinvolucral bracts linear at capitulum base (vs. subinvolucral bracts ovate), phyllaries pinkish-green (vs. greenish), florets 20–30, and corolla white, corolla lobes, anther, and style apex lavender (vs. florets 45–60, corolla green-cream). A distribution map, line drawing, and pictures of the new species are included.