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Published In: Species Muscorum Frondosorum 89. pl. 18: f. 6–10. 1801. (Sp. Musc. Frond.) Name publication detail
 

Project Name Data (Last Modified On 9/29/2009)
Acceptance : Accepted
Project Data     (Last Modified On 12/13/2014)
country distribution: Venezuela, Colombia, Ecuador, Peru, Bolivia, NW Argentina
EcoRegions: Páramo, Puna, Montane Forest
elevation: 500-1000, 1000-1500, 1500-2000, 2000-2500, 2500-3000, 3000-3500, 3500-4000, 4000-4500, 4500-5000
substrate: soil, rocks
frequency: common

Notes     (Last Modified On 12/13/2014)
Notes:
Ecology: Throughout the open montane, páramo and puna; exposed sites, on soil and rocks, common in disturbed areas. Elevation: 540-4980 m (Venezuela: 1000-4500 m, Colombia: 950-4680 m, Ecuador: 800-4600 m, Peru: 1150-4700 m, Bolivia: 1050-4980 m, Argentina: 540-2900 m). Distribution: Widespread.
 
Ecología: En toda la región montana, páramo y puna; en sitios expuestos, sobre suelo y rocas, común áreas perturbadas. Elevación: 540-4980 m (Venezuela: 1000-4500 m, Colombia: 950-4680 m, Ecuador: 800-4600 m, Perú: 1150-4700 m, Bolivia: 1050-4980 m, Argentina: 540-2900 m). Distribución: Ampliamente distribuida.
 
Polytrichum juniperinum is readily distinguished by the upper marginal lamina folded over ventral surface of the leaf limb. Plants vary considerable in stature, from 1 cm to 15 cm tall. Smaller plants are often associated with windswept, exposed localities in the puna and open high montane, larger plants found in more mesic montane localities. This species is treated broadly here (but see Walther, 1934). Some collections observed in Bolivia and elsewhere in the tropical Andes approach the form referred to as var. affine (Funck) Brid. (= Polytrichum strictum Menzies ex Brid.). This variety is characterized stems densely covered by whitish rhizoids. A number of collections are often mixed, some plants densely tomentose, others partially covered and others naked. It seems rather amazing the Carl Müller only described five species belonging to P. juniperinum.
 
Some authors refer to this species as “weedy” with some distain, however in the tropical Andes I prefer to think of this species as one of the great conservation plants, aiding in the stabilization of exposed mountain slopes due to natural causes such as landslides or human caused disturbances such as cut banks along roads and trails.
 
Polytrichum juniperinum se distingue fácilmente por tener la porción marginal superior de  la lámina doblada sobre la superficie ventral del limbo de la hoja. Las plantas varían considerablemente en estatura, desde 1 cm hasta 15 cm de alto. Las plantas menores a  menudo están asociadas con localidades expuestas en la puna y montano abierto alto, azotadas por el viento, las plantas mayores se encuentran en localidades montanas más mésicas. Esta especie es tratada ampliamente aquí (pero ver Walther, 1934). Algunas colecciones observadas en Bolivia y en otros sitios de los Andes tropicales se asemejan a la forma referida como var. affine (Funck) Brid. (= Polytrichum strictum Menzies ex Brid.). Esta variedad se caracterizada por tener tallos densamente cubiertos por rizoides blanquecinos. Muchas colecciones a menudo están mezcladas entre algunas plantas densamente tomentosas, otras parcialmente cubiertas y otras desnudas.

 

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Polytrichum juniperinum Hedw., Sp. Musc. Frond. 89. 1801. Type: Europe.

Polytrichum aristiflorum Mitt., J. Linn. Soc., Bot. 12: 620. 1869. Syntypes: numerous collections cited from the Andes and southeast Brazil. Most collections at NY, and with few exceptions also at the BM.

Polytrichum equisetiforme Müll. Hal., Linnaea 38: 579. 1874. Type: Colombia. Antioquia, Paramo de Sonson, 10,000 pedes, 1872, Wallis s.n. (herb.?). Fide Messmer and Frye (1947: 260).

Polytrichum rhynchomitrium Müll. Hal., Linnaea 38: 577. 1874. Type: Colombia. Antioquia, Paramo de Sonson, 10-12,000 pedes, 1872, Wallis s.n. (BM, NY). Fide Messmer and Frye (1947: 260).

Polytrichum thysanomitrium Müll. Hal., Linnaea 38: 578. 1874. Type: Colombia. Antioquia, Paramo de Sonson, 10-12,000 pedes, 1872, Wallis s.n. (BM). Fide Messmer and Frye (1947: 260).

Polytrichum cuspidigerum Schimp. ex E. Britton, Bull. Torrey Bot. Club 23: 490. 1896. Type: Bolivia. Unduavi, 4000 ft., 1885, Rusby 3155.

Polytrichum angusticaule Müll. Hal. ex E. Britton, Bull. Torrey Bot. Club 23: 491. 1896. Type: Bolivia. Near Yungas, 18000 ft., October 1885, Rusby 3156c.

Polytrichum tumescens Müll. Hal., Hedwigia 36: 91. 1897. Polytrichum juniperinum var. tumescens (Müll. Hal.) Herzog, Biblioth. Bot. 87: 104. 1916. Type: ?

 

 


 

 
 
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