Rosulabryum billarderii ( Schwaegr .) J.R. Spence

Spence, John R., 2021, Studies in Austral Bryaceae (Bryopsida). III. A Preliminary Account with Keys to Rosulabryum J. R. Spence in Chile, PhytoKeys 185, pp. 87-98 : 87

2. Rosulabryum billarderii ( Schwaegr.) J.R. Spence

Remarks.

The common widespread species of large Rosulabryum from central Chile south to Aisén. The species is also found in Argentina, the Falkland Islands, Australia, New Zealand and Macquarie Island ( Spence and Ramsay 2019). In the Magellanes Region it is largely replaced by R. perlimbatum . The species occurs in a variety of forested and semi-open habitats, often in shade on mesic to damp soil banks, fallen logs, tree stumps and soil-covered ledges. It is characterized by dioicous sexual condition, strongly rosulate stems, large leaves that are irregularly contorted when dry, a costa excurrent into a short awn, a strong limbidium, serrate leaf margins, and brown to red-brown rhizoidal tubers (Illustrations: Mohamed 1979: 407, as Bryum billarderii ; Spence and Ramsay 2006: 335, as R. billarderii ; Fife 2015: 84, as R. billarderii ).

Representative specimens examined.

Aisen Region , Provincia Capitan Prat , cruzando pasarela Río Ñadis, en bosque de Nothofagus dombeyi , 47°29'49"S, 72°56'51"W, alt. ca. 70 m, sobre tronco caído en claro del bosque, J. Larraín & R. Vargas 26799, 19 Ene 2007 (CONC): Region VIII, Bío Bío Province, road from Tomeco to Florida, 2 km N from Hwy 0-50, 36°57'S 72°40'W, alt. ca. 190 m, on soil bank, R.R. Ireland & G. Bellolio 32401 (MO) .