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!Didymodon umbrosus (Müll. Hal.) R.H. Zander Search in The Plant ListSearch in NYBG Virtual HerbariumSearch in Muséum national d'Histoire naturelleSearch in Type Specimen Register of the U.S. National HerbariumSearch in Virtual Herbaria AustriaSearch in JSTOR Plant ScienceSearch in SEINetSearch in African Plants Database at Geneva Botanical Garden Decrease font Increase font Restore font

Published In: Phytologia 41: 22. 1978. (Phytologia) Name publication detailView in Biodiversity Heritage Library

Project Name Data (Last Modified On 1/27/2013)
Acceptance : Accepted
Project Data     (Last Modified On 1/27/2013)
country distribution: Venezuela, Colombia, Ecuador, Peru, Bolivia, NW Argentina
EcoRegions: Páramo, Puna, Montane Forest, Dry Inter-Andean Valleys
elevation: 500-1000, 1000-1500, 1500-2000, 2000-2500, 2500-3000, 3000-3500, 3500-4000, 4000-4500
substrate: soil, rocks

Notes     (Last Modified On 1/27/2013)
Ecology and distribution. At elevations from 910-4150 m (Venezuela: 2900-3300 m, Colombia: 2000 m, Peru: 2000-4150 m, Bolivia: 1530-3500 m, NW Argentina: 910-2090 m). United States, Central America, and Andes; also Europe. Previously recognized as a variety of T. australasiae, see comments under that species.
Didymodon umbrosusis characterized by the presence of a stem hyalodermis, long lanceolate to oblong-lanceolate leaves to 3 mm, acute to obtuse apices, entire, plane margins, unistratose lamina or bistratose in distal 1/3 of leaf, subpercurrent to percurrent costa, dorsal stereid band present, ventral stereid band absent, rectangular upper adaxial costal (epidermal) cells, and differentiated marginal base cells in 2-6 rows (narrowly long rectangular and firm-walled). Previously recognized as a variety of T. australasiae, see comments under that species. Two species described from northwest Argentina including Asteriscium flavisetum Herzog based on a collection made by Hosseus from Orán (Province of Salta), and Barbula curvipes Müll. Hal. based on a collection by Lorentz from Siambon (Province of Tucumán), are synonyms.



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