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Published In: The Bryologist 98: 265. f. 1a–g. 1995. (Bryologist) Name publication detail
 

Project Name Data (Last Modified On 10/18/2009)
Acceptance : Accepted
Project Data     (Last Modified On 6/6/2018)
Status: endemic
Plant Category: Mosses
country distribution: Ecuador
EcoRegions: Open montane
elevation: 2000-2500
substrate: leaf litter / humus
frequency: rare
General Reference:

Notes     (Last Modified On 6/6/2018)
Notes:

Ecology: Open forested montane, in swampy area; on humus. Elevation: 2500 m. Distribution: Endemic to the tropical Andes (Ecuador). Assigned to section Sphagnum.

Ecología: Bosque montano abierto, en áreas pantanosas; sobre humus. Elevación: 2500 m. Distribución: Endémica para los Andes tropicales (Ecuador). Asignada a la sección Sphagnum.

Crum (1995) notes the similarity to S. sanguinale Warnst., but differs from that species by the undivided hyaline cells of the stem leaves, the retort-like branch cortical cells, and the narrowly exposed green cells of branch leaves on both surfaces. This species is the only known moss endemic to the Cordillera del Cóndor in southern Ecuador.

This species is named for Alwyn H. Gentry (1945-1993), one of the foremost students of neotropical plants, and author of A Field Guide to the Families and Genera of Woody Plants of Northwest South America (1993).

Crum (1995) menciona la similitud con S. sanguinale Warnst., pero se diferencia de esta especie por las células hialinas de las hojas del tallo no divididas, células corticales lageniformes en las ramas, y células verdes de las hojas de las ramas expuestas restringidamente en ambas superficies. Esta especie es el único musgo endémico conocido para la Cordillera del Cóndor en el sur de Ecuador.

Esta especie nombrada en honor a Alwyn H. Gentry (1945-1993), uno de los estudiosos más importantes de plantas neotropicales, y autor de A Field Guide to the Families and Genera of Woody Plants of Northwest South America (1993).


 

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Plants small, brown. Stems blackish, cortex lacking fibrils, mostly 1-pores, wood cylinder reddish brown. Stem leaves oblong to ovate-oblong, 1.1-1.3 mm, concave, margins short fringed; hyaline cells not divided, mostly resorbed or with round gaps in the upper 1/3, occasionally with fibril stumps. Branches 2- fasciculate, both spreading or ascending, cortical cells partly large and retort-like with a single distal pore, lacking fibrils. Branch leaves erect-spreading, ovate, ca. 1 mm; hyaline cells on the outer surface with few rather large, round or round-elliptic pores at corners and commissures, on the inner surface without pores or rarely with 1 elliptic pseudopore; in cross-section green cells central, narrowly exposed on both surfaces, more so on the inner; hyaline cells weakly convex. Crum 1995.

Plantas pequeñas, marrones. Tallos negruzcos, corteza sin fibrillas, generalmente 1-poro, cilindro leñoso pardo rojizo. Hojas del tallo oblongas a ovado-oblongas, 1.1-1.3 mm, cóncavas, márgenes corto ciliados; células hialinas no divididas, generalmente resorbidas o con orificios circulares en el tercio superior, ocasionalmente con fibrillas en tocones. Ramas 2- fasciculadas, ambas ramitas patentes o ascendentes, células corticales parcialmente grandes y lageniformes con un solo poro distal, sin fibrillas. Hojas de las ramas erecto-extendidas, ovadas, ca. 1 mm; superficie externa de las células hialinas con pocos poros, redondeados o redondeado-elípticos, muy grandes, en los ángulos y comisuras, superficie interna sin poros o rara vez con 1 pseudoporo elíptico; en corte transversal células verdes centrales, poco expuestas en ambas superficies, más en la superficie interna; células hialinas débilmente convexas. Crum 1995.

 
 


 

 
 
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