منابع مشابه
Allophylastrum: a new genus of Sapindaceae from northern South America
The new genus Allophylastrum (Sapindaceae) is described from Roraima, Brazil and Guyana. Allophylastrum resembles the genus Allophylus in its vegetative morphology but differs by its apetalous flowers with a cupular nectary disc, 5-6 unequal stamens, and 4- to 5- porate pollen grains. A key is provided to differentiate Allophylastrum from Allophylus. The new species Allophylastrum frutescens is...
متن کاملLeioproctus rosellae sp. n., the first record of the genus from northern South America (Hymenoptera, Colletidae)
Leioproctus Smith is a diverse colletine genus found in the Australian region and primarily temperate areas of South America. A new species of Leioproctus subgenus Perditomorpha Ashmead, Leioproctus rosellae Gonzalez, sp. n., from a tropical dry forest of the Caribbean coast of Colombia is described and figured. This is the first record of the genus from northern South America.
متن کاملTreerunners, cryptic lizards of the Plica plica group (Squamata, Sauria, Tropiduridae) of northern South America
The arboreal, Neotropical lizard Plica plica (Linnaeus, 1758) has been long considered a widespread species with a distribution east of the Andes. A preliminary examination of 101 specimens from about 28 locations mostly north of the Amazon suggests that Plica plica is a cryptic species complex with taxa that can be distinguished on the basis of the number of scale rows at mid-body; the arrange...
متن کاملMolecular phylogeny and taxonomy of the Epictia goudotii Species complex (Serpentes: Leptotyphlopidae: Epictinae) in Middle America and northern South America
Here we review the systematics of the threadsnakes of the Epictia goudotii Species complex in Middle and northern South America using external morphology and molecular data. Two species, Epictia goudotii and E. magnamaculata, are currently recognized from that region, but we provide evidence for recognizing, as species, three other nominal forms usually treated as subspecies of E. goudotii: E. ...
متن کاملA New Color Allele at the E Locus of Drosophila Polymorpha from Northern South America.
HE general phenomenon of polymorphism and its advantages for understanding evolutionary processes have recently been reviewed by HUXLEY (1955). Color polymorphism is not common in Drosophila but when it does occur, in species that may be bred in the laboratory, it affords excellent material for genetic analysis. In 1949 BRITO DA CUNHA established that the three phenotypes of Drosophila polymorp...
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ژورنال
عنوان ژورنال: American Midland Naturalist
سال: 1951
ISSN: 0003-0031
DOI: 10.2307/2421992