108 HISTORY OF BRITISH MOSSES. 



WEISSIA, Hedw. (Weissia.) 



A genus instituted by Hedwig in memory of Weissius, 

 Professor of Botany, " an intelligent and modest " investi- 

 gator of the Cryptogamia of Gottingen. It has been much 

 broken up by the authors of the valuable 'Bryologia Euro- 

 psea/ and other recent writers, and we doubt not many of 

 the modifications they adopt are well founded. We have 

 however thought it best to adhere as strictly as possible to 

 the nomenclature adopted in the ' English Flora ' in this and 

 other genera, recommending our muscological friends who 

 may have access to these works to avail themselves of the 

 ample stores of information they afford. 



Generic Character. — Seta termiual. Peristome single, of six- 

 teen nearly erect, entire, equidistant teeth. Apophysis none. 

 Calyptra dimidiate. 



■^ Capsule drooping, g'lhhous. 



1. Weissia nuda, Hook, and Taylor. [Naked JFeissia.) 

 Stems scarcely any ; leaves ovato-lanceolate, nerveless ; cap- 

 sule ovate, cernuous, gibbous on one side. — Eng. Fl. jo- 19. 

 Discelium nudum, Milll. 8ijn.pt. I. p. 149. 



On clayey soil, near Manchester, Mr. Caley, and near Perth, 

 Mr. Don. It is also found in the plains of other northern 



