The Genus Ceratolejeunea Jack & Steph. (Hepaticae: Lejeuneaceae) in Tropical America
by Gregorio Dauphin López
Date of Examination:2000-11-01
Date of issue:2000-12-13
Advisor:Prof. Dr. Robbert Gradstein
Referee:Prof. Dr. Robbert Gradstein
Referee:Prof. Dr. Gerhard Wagenitz
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Description:Dissertation
Abstract
English
The genus Ceratolejeunea Jack & Steph. (Hepaticae: Lejeuneaceae) in Tropical America. Gregorio Dauphin L. Albrecht-von-Haller-Institut für Pflanzenwissenchaften, Abt. Systematische Botanik Untere Karspüle 2, D-37073 Göttingen, Germany. gregoriodauphin@hotmail.com. November 2000. A revision of the genus Ceratolejeunea in Tropical America is presented based on the examination of fresh plant material and more than 1000 herbarium specimens and types of the over 100 species names published for the American Continent. Preliminarily, 23 Ceratolejeunea species are recognized in two subgenera: subgen. Ceratolejeunea (4 spp.) and subgen. Caduciloba (19 spp.). A new species, Ceratolejeunea minuta G. Dauphin, is described, an a new combination, Ceratolejeunea dussiana (Steph.) Dauphin, is proposed. Morphological descriptions, distributional and ecological data, keys and illustrations of the species are given. A phylogenetic analysis of the relationshiph between the species is also presented.
Keywords: Taxonomy; Hepaticae; Lejeuneaceae; Ceratolejeunea