Tropicos | Name - !!Callicostella (Müll. Hal.) Mitt.

Andean Bryo > Pilotrichaceae > Callicostella

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!!Callicostella (Müll. Hal.) Mitt.

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Project Name Data (Last Modified On 2/7/2013)

Acceptance : Accepted

Notes (Last Modified On 2/7/2013)

Notes:

Callicostella contains far fewer than the some 100 species ascribed to this mostly lowland pantropical genus; 60 species presently recorded for the Neotropics, probably only 30. In the tropical Andes found in lowland to premontane forest, typically on logs, soil and rock, often within proximity of streams or other moist habitats. The genus is characterized by the loosely complanate, ovate, narrowly to broadly oblong-ovate and unbordered leaves, the truncate-apiculate to broadly or narrowly acute apex, the irregularly to regularly serrate margins with teeth often bifid, strong and raised costae that is often toothed, thick-walled, short (1-2:1), smooth to papillose (papillae over lumen or projecting at upper cell angle, or both), rhombic, hexagonal upper laminal cells, smooth or papillose seta, cross-striate, furrowed exostome teeth, and high basal membrane. An older name, Schizomitrium has been employed in recent times by authors, however the name Callicostella in long use, has been recently conserved. The genus is poorly known and in much need of revision in the Neotropics.

Callicostella contiene poco menos de 100 especies adscritas a este género distribuído generalmente desde tierras bajas hasta bosque premontano pantropical. Aproximadamente 60 especies están actualmente registradas en el Neotrópico, probablemente 30 o menos. El género se caracteriza por las hojas laxamente complanadas, ovadas, angostamente hasta ampliamente oblongo-ovadas y sin borde, el ápice truncado-apiculado hasta ampliamente o angostamente agudo, los márgenes irregularmente hasta regularmente serrados con dientes a menudo bífidos, costa fuerte y elevada a menudo dentada, células superior de la lámina hexagonales, con paredes gruesas, cortas (1-2:1), lisas hasta papilosas (papilas sobre el lumen o proyectándose en los ángulos superiores de la célula, o en ambos), rómbicas, setas lisas o papilosas, estrías cruzadas, dientes del exostoma acanalados y membrana basal alta.