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Published In: Journal of the Linnean Society, Botany 12: [20–]21, 496–497. 1869. (J. Linn. Soc., Bot.) Name publication detailView in BotanicusView in Biodiversity Heritage Library

Project Name Data (Last Modified On 12/6/2009)
Acceptance : Accepted
Project Data     (Last Modified On 10/31/2017)
Plant Category: Moss

Notes     (Last Modified On 10/31/2017)
general taxon notes:

A pantropical genus stated to contain over 100 species, with many likely synonyms. Taxithelium is confined primarily to tropical Asia; about 5 species present in the Neotropics. The genus is characterized principally by the pluripapillose laminal cells with the papillae arranged in a single row over the cell lumen; the alar cells are not as strongly differentiated as in, for example, Sematophyllum or Trichosteleum.


Un género pantropical que se estima que contiene más de 100 especies, probablemente con muchos sinónimos. Taxithelium está confinado principalmente a Asia tropical; ca. 5 especies presentes en el Neotrópico. El género se caracterizado principalmente por las células pluripapilosas de la lámina con las papilas dispuestas en una sola fila sobre el lumen celular; las células alares no están claramente diferenciadas como  en, por ejemplo, Sematophyllum o Trichosteleum.

Reference List     (Last Modified On 10/31/2017)


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Plants rather small, forming thin to rather dense mats, pale olive green. Stems and branches spreading, regular to irregular pinnately branched. Leaves weakly to strongly complanate, lateral leaves somewhat larger and slightly asymmetric, broadly oblong-ovate to ovate-lanceolate, 0.7-1.2 mm long, to 0.6mm wide, concave, apex broadly to narrowly acute; margins plane, serrulate throughout by projecting papillae; costa none; median cells linear, pluripapillose, papillae ca. 3-7 in a row over cell lumen; alar region usually differentiated, cells quadrate to short rectangular or oval. Autoicous. Perichaetial leaves sheathing seta, lanceolate, ca. 2 mm long, acuminate, cells papillose. Setae 8-22 mm long, slender, smooth. Capsules inclined to suberect, urn broadly short-ovoid to ovoid-cylindrical, ca. 0.5-1.2 mm long, asymmetric, contracted below mouth when deoperculate; exothecial cells thick-walled, weakly collenchymatous or not; stomata at urn base, superficial; opercula conic-short rostrate; peristome double, exostome teeth cross-striate below, papillose distally, with a median zig-zag line, bordered, trabeculate on back; endostome basal membrane high, segments keeled, papillose, cilia 1. Calyptrae cucullate, smooth and naked. Spores spherical, appearing smooth to lightly papillose.


Plantas muy pequeñas, formando matas delgadas a muy densas, verdes olivas pálidas. Tallos y ramas patentes, ramificaciones regular a irregularmente pinnadas. Hojas débil a marcadamente complanadas, hojas laterales algo mayores y escasamente asimétricas, anchamente oblongo-ovadas a ovado-lanceoladas, 0.7-1.2 mm de largo, hasta 0.6mm de ancho, cóncavas, ápices anchamente a angostamente agudos; márgenes planos, totalmente serrulados por proyecciones de papilas; sin costa; células mediales lineales, pluripapilosas, ca. 3-7 papilas en una fila sobre el lumen celular; región alar generalmente diferenciada, células cuadradas a corto rectangulares u ovales. Autoicas. Hojas periqueciales envainando a la seta, lanceoladas, ca. 2 mm de largo, acuminadas, células papilosas. Setas de 8-22 mm de largo, delgadas y lisas. Cápsulas inclinadas a suberectas, urna anchamente corto-ovoide a ovoide-cilíndrica, ca. 0.5-1.2 mm de largo, asimétricas, constreñida debajo de la boca cuando está desoperculadas; células exoteciales con paredes gruesas, débilmente colenquimatosas o no; estomas en la base de la urna, superficiales; opérculo corto-cónico rostrado; peristoma doble, dientes del exostoma con estrías cruzadas abajo, distalmente papilosos, con una línea media en zig-zag, bordeados, trabeculados en el envés; membrana basal del endostoma alta, segmentos carinados, papilosos, 1 cilio. Caliptra cuculada, lisa y desnuda. Esporas esféricas, de apariencia lisa a ligeramente papilosas.

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