标题哥斯大黎加dichaia属一新种

IF 0.6 4区生物学 Q4 PLANT SCIENCES

Blumea Pub Date : 2020-07-03 DOI:10.3767/blumea.2020.65.01.06

F. Pupulin, A. Karremans

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引用次数: 1

摘要

一种新的和花上不寻常的种Dichaea属描述和说明从哥斯达黎加，在那里它显然是地方性的，和它的关系进行了讨论。将黑耳双翅草与接近稻谷双翅草的种属进行比较，发现其唇部具有长峡部，基部有两个圆形耳廓，而不是该种属典型的无柄唇。我们还将它与哥斯达黎加的另一种特有植物D. gracillima进行了比较，后者的特点是花是自交的，大部分是闭花交配的，花有3瓣唇，基部裂片圆形，沿唇峡的高龙骨和柱体的两裂舌。文中还介绍了新物种的生境和生态。

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A new and unusual species of Dichaea (Orchidaceae: Zygopetalinae) from Costa Rica

A new and florally unusual species of the genus Dichaea is described and illustrated from Costa Rica, where it is apparently endemic, and its relationships are discussed. Dichaea auriculata is compared with the group of species close to D. graminoides, from which it can be distinguished by the lip with a long isthmus, provided with two rounded auricles at the base, instead of the sessile lip typical of the group. It is also compared with another Costa Rican endemic in the same complex, D. gracillima, from which it can be distinguished by the autogamous, mostly cleistogamous, flowers, the3-lobed lip with rounded basal lobes, the high keel along the lip isthmus, and the bifid ligule of the column. Notes on the habitat and the ecology of the new species are provided.

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来源期刊

Blumea 生物-植物科学

CiteScore

1.90

自引率

14.30%

发文量

审稿时长

>12 weeks

期刊介绍： An international electronic-only journal on the biodiversity, evolution and biogeography of plants (systematics, floristics, phylogeny, morphology, anatomy). For floristic studies, the focus is on tropical Africa south of the Sahara; tropical Southeast Asia with a strong emphasis on Malesia; South America with emphasis on the Guianas. The language is English.