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Published In: Bryologia Universa 2: 204. 1827. (Bryol. Univ.) Name publication detail

Project Name Data (Last Modified On 9/16/2009)
Acceptance : Accepted
Project Data     (Last Modified On 10/7/2017)
Plant Category: Mosses
General Reference:

Notes     (Last Modified On 10/7/2017)

Regmatodon is characterized by ascending to erect distal stems and branches, somewhat asymmetric, ovate-short lanceolate leaves, short acuminate apex, entire margins, a strong costa ca. 1/2-2/3 lamina length, often weakly forked above, smooth and thick-walled laminal cells, rhomboidal to oblong, somewhat obliquely arranged median cells, and subquadrate to short rectangular marginal and basal cells. The peristome aids most in distinguishing this taxon; the exostome is ca. 1/2 or less endostome length, and the endostomial basal membrane is low. The genus may be confused with the Leskeaceae which it was previously placed with, but differs by the peristomial differences previously discussed. Regmatodon contains two species with a pantropical distribution, only the species given below is present in the Neotropics (Eakin, 1998). The more familiar name, R. polycarpus has been shown to predate R. orthostegius by only a few months (Eakin & Allen 1999).


Regmatodon contiene dos especies con distribución pantropical. En el Neotrópico, sólo una especie ha sido registrada, Regmatodon orthostegius Mont. Esta especie se caracteriza por presentar los tallos y ramas distales ascendentes a erectas, hojas algo asimétricas, corto-ovado lanceoladas, ápices corto-acuminados, márgenes enteros, costa fuerte ocupando aproximadamente 1/2-2/3 de la longitud de la lámina, a menudo débilmente bifurcado arriba, células de la lámina lisas y con paredes gruesas, rómbicas hasta oblongas, células mediales algo oblicuamente dispuestas, células basales y del margen subcuadradas hasta corto-rectangulares. El peristoma es de gran ayuda para distinguir este taxón; el exostoma es aproximadamente 1/2 o menos de la longitud del endostoma y membrana basal del endostoma es baja. Esta especie sólo ha sido colectada pocas veces en Andes tropicales  y parece ser bastante rara.

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