Novedades en Leucheria (Asteraceae, Mutisieae).
نویسندگان
چکیده
منابع مشابه
Cladistic and Biogeographic Analyses of the Genera Moscharia and Polyachyrus (Asteraceae, Mutisieae)
The genera Moscharia (two species) and Polyachyrus (seven species) form a monophyletic group within tribe Mutisieae, subtribe Nassauviinae, defined by the leaves with auricles at their bases, and the capitula with 1-seriate involucre. A cladistic analysis of the species of the two genera was carried out using 22 characters from life cycle, external morphology, pollen, and trichomes. Polarity of...
متن کاملPhylogeny of Chaetanthera (Asteraceae: Mutisieae) reveals both ancient and recent origins of the high elevation lineages.
Penalized likelihood analysis of previously published chloroplast DNA (cpDNA) ndhF sequences suggests that the central-southern Andean genus Chaetanthera diverged ca. 16.5 million years (my) ago, well before the uplift of the Andes to their present heights. Penalized likelihood analysis based on new nuclear ribosomal DNA (rDNA) internal transcribed spacer (ITS) sequences indicates that the most...
متن کاملMeristematic endodermis and secretory structures in adventitious roots of Richterago Kuntze (Mutisieae-Asteraceae)
(Meristematic endodermis and secretory structures in adventitious roots of Richterago Kuntze (MutisieaeAsteraceae)). The meristematic endodermis in adventitious roots of Richterago species originates in one of the fundamental meristem cells, which undergo sucessive anticlinal and periclinal divisions to build the inner cortex. The meristematic endodermis or proendodermis remains as a meristemat...
متن کاملTypification of species names in Adenocaulon and Eriachaenium (Compositae/Asteraceae, Subfamily Mutisioideae, Tribe Mutisieae, Subtribe Adenocaulinae)
During the course of a recent research project on Adenocaulon and Eriachaenium it became apparent that some of the species names had not been typified. In this study we located and designated as much type material as possible for these two genera. We indicate holotypes or lectotypes where appropriate, including one for the type of the genus Adenocaulon.
متن کاملMolecular phylogenetic analysis of Leibnitzia Cass. (Asteraceae: Mutisieae: Ger^ra-complex), an Asian-North American disjunct genus
Leibnitzia comprises six species of perennial herbs that are adapted to high elevation conditions and is one of only two Asteraceae genera known to have an exclusively disjunct distribution spanning central to eastern Asia and North America. Molecular phylogenetic analysis of Leibnitzia and other Gerbera -complex members indicates that Leibnitzia is monophyletic, which is in contrast with our e...
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ژورنال
عنوان ژورنال: Boletín de la Sociedad Argentina de Botánica
سال: 1970
ISSN: 1851-2372,0373-580X
DOI: 10.31055/1851.2372.v49.n1.7827