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Erythrodontium Hampe Search in The Plant ListSearch in Index Nominum Genericorum (ING)Search in NYBG Virtual HerbariumSearch in JSTOR Plant ScienceSearch in SEINetSearch in African Plants Database at Geneva Botanical Garden Decrease font Increase font Restore font
 

Published In: Videnskabelige Meddelelser fra Dansk Naturhistorisk Forening i Kjøbenhavn ser. 3, 2: 279. 1870. (Vidensk. Meddel. Dansk Naturhist. Foren. Kjøbenhavn) Name publication detail
 

Project Name Data (Last Modified On 5/1/2009)
Acceptance : Accepted
Project Data     (Last Modified On 10/18/2012)
General Reference:

Notes     (Last Modified On 10/18/2012)
general taxon notes:

Erythrodontium contains 7 species primarily distributed throughout the tropics (Majestyk 2009); three species in the Neotropics. The genus is distinguished by the rather strongly julaceous branches, broadly ovate leaves, short acuminate apex, short decurrent leaf base, numerous alar cells, absence or a rudimentary basal membrane, segments neither keeled or perforate, and coarsely papillose spores. In Bolivia Erythrodontium longisetum tends to be more common in moist or dry mid montane sites, where as E. squarrosum is frequent in drier sites at lower elevations; both species are found in the dry inter-Andean valleys.
 
Erythrodontium contiene unas 17 especies distribuidas principalmente en los trópicos; probablemente menos de cinco especies en el Neotrópico. El género se distingue por las ramas marcadamente juláceas, hojas anchamente ovadas, ápices corto-acuminados, bases de las hojas corto-decurrentes, numerosas células alares, membrana basal ausente o rudimentaria, segmentos no carinados ni perforados y esporas gruesamente papilosas. En Bolivia Erythrodontium longisetum tiende a ser más común en sitios húmedos o secos en bosque montano medio, mientras que E. squarrosum es frecuente en sitios secos a elevaciones inferiores ambas especies se encuentran en valles secos interandinos.

 

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Plants somewhat small to medium-sized, forming mats, glossy green to yellowish-brown or golden. Stems spreading or short ascending and curled, julaceous or rarely somewhat complanate; central strand present; pseudoparaphyllia foliose; radiculose beneath, rhizoids often clustered. Leaves appressed to erect-spreading, ovate-short lanceolate to broadly ovate-oval or nearly orbicular, deeply concave, apex abruptly or very short acuminate, base broadly short decurrent; margins entire to serrulate near apex; ecostate or costate, costa short and forked; median cells linear to rhomboidal, smooth; alar cells numerous, usually 20 or more quadrate cells along margin. Autoicous. Perichaetia lateral; leaves differentiated. Setae elongate, dark red or yellow to yellowish-orange. Capsules erect, urn ovoid-cylindrical; stomata at base, superficial; annuli absent; opercula short rostrate; peristome double, inserted below mouth, exostome striate, vertical and/or horizontal to papillose; endostome rudimentary, basal membrane absent, segments narrow. Calyptrae cucullate, smooth and naked. Spores spherical, papillose.
 
Plantas algo pequeñas hasta medianas, formando matas, verde brillante hasta pardo-amarillentas o doradas. Tallos patentes o corto-ascendentes y rizados, juláceos o rara vez algo complanados; banda central presente; pseudoparáfilos folioso; radiculosos abajo, rizoides a menudo agregados. Hojas adpresas a erecto-extendidas, corto-ovadas lanceoladas hasta anchamente ovado-ovales o casi orbiculares, profundamente cóncavas, ápices abruptamente o muy corto-acuminados, bases anchamente cortas y decurrentes; márgenes enteros hasta serrulados cerca del ápice; ecostadas o con costa corta y bifurcada; células mediales lineales hasta rómbicas, lisas; numerosass células alares, generalmente 20 o más células cuadradas a lo largo del margen. Autoicas. Periquecios laterales; hojas diferenciadas. Setas alargadas, rojas oscuras o amarillas hasta naranja-amarillentas. Cápsulas erectas, urna ovoide-cilíndrica; estomas en la base, superficiales; anillo ausente; opérculo corto-rostrado; peristoma doble, inserto bajo la boca, exostoma estriado, vertical y/u horizontal hasta papiloso; endostoma rudimentario, membrana basal ausente, segmentos angosto. Caliptra cuculada, lisa y desnuda. Esporas esféricas y papilosas.
 

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1. Leaves broadly ovate-lanceolate, 1.5-1.8 mm long, 0.75-0.85 mm wide; branches loosely julaceous; seta yellow … E. longisetum
1. Leaves broadly ovate to oval, 0.7-0.9 mm long, 0.5-0.6 mm wide; branches strongly julaceous; seta red … E. squarrosum
 
1. Hojas ampliamente ovado-lanceoladas, 1.5-1.8 mm de largo, 0.75-0.85 mm de ancho; ramas laxamente juláceas; setas amarillas … E. longisetum
1. Hojas ampliamente ovadas a ovales, 0.7-0.9 mm de largo, 0.5-0.6 mm de ancho; ramas marcadamente juláceas; setas rojas … E. squarrosum
 
 
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