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Published In: Novon 12: 444. f. 24–28. 2002. (Novon) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 10/17/2009)
Acceptance : Accepted
Project Data     (Last Modified On 7/5/2018)
Status: endemic
Plant Category: Mosses
country distribution: Peru
EcoRegions: Open montane
elevation: 3000-3500
frequency: rare
General Reference:

Notes     (Last Modified On 7/5/2018)
Notes:

Ecology: Montane region. Elevation: 3000. Distribution: Endemic to the tropical Andes (Peru). The specific epithet is unfortunate; it refers not to the Amazon region but to the political subdivision. Assigned to section Acutifolia.

Ecología: Región montana. Elevación: 3000 m. Distribución: Endémica para los Andes tropicales (Perú). El epíteto específico es desafortunado; se refiere a la subdivisión política no a la región amazónica. Asignada a la sección Acutifolia.

Features noted by Crum (2002) for S, amazonense include the triangular stem leaves, slightly concave at the apex, efibrillose hyaline cells that are twice divided with large membrane on both surfaces, and the branch leaves exhibit rather numerous elliptic commissural pores on the outer surface and to three, rather large, rounded, thin-margined pores (or gaps) on the inner surface. Unfortunately the specific name amazonense is for the region, Amazonas, in northern most Peru, not the lowland ecoregion as one might infer.

Las características que menciona Crum (2002) para S. amazonense son las hojas del tallo triangulares, escasamente cóncavas en el ápice, células hialinas doblemente divididas, sin fibrillas con membrana grande en ambas superficies, y las hojas de las ramas presentan muchos poros comisurales elípticos en la superficie externa y hasta tres poros redondeados (u orificios), muy grandes, con márgenes delgados en la superficie interna. Desafortunadamente el nombre específico amazonense se refiere al departamento  Amazonas, en el extremo norte de Perú, no a la eco región de tierras bajas como uno podría inferir.

 


 

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Plants tawny, 5-6 cm. Stem cortex without pores; wood cylinder red-yellow. Stem leaves ovate-triangular, 1.2 mm, apex acute, slightly concave, margins strongly bordered by 4-5 cell rows, the border somewhat expanded toward the base; hyaline cells 1-2-divided, fibrils absent, with a large gap on both surfaces. Branches in fascicules of 3 (1 pendent). Branch leaves narrowly ovate, 1.1-1.2 mm, concave, margins bordered by about 3 rows of linear cells; hyaline cells on the outer surface with numerous (to 9) ringed, elliptic commissural pores, on the inner surface with 1-3 rounded, pores; in cross-section green cells triangular, exposed on inner surface, hyaline cells bulging on both surfaces. Crum 2002.

Plantas marrón-amarillentas, 5-6 cm. Tallo con corteza sin poros; cilindro leñoso rojo-amarillo. Hojas del tallo ovado-triangulares, 1.2 mm, ápices agudos, escasamente cóncavos, márgenes marcadamente bordeados por 4-5 filas de células, borde algo expandido hacia la base; células hialinas 1-2-divididas, sin fibrillas, con un orificio grande en ambas superficies. Ramas en fascículos de 3 (1 pendiente). Hojas de las ramas angostamente ovadas, 1.1-1.2 mm, cóncavas, márgenes bordeados por ca. 3 filas de células lineares; células hialinas en la superficie externa con numerosos poros elípticos anulados (hasta 9) en las comisuras, superficie interna con 1-3 poros redondeados; en corte transversal células verdes triangulares, expuestas en la superficie interna, células hialinas abultadas en ambas superficies. Crum 2002.

 


 

 
 
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