REVUE BRYOLOGIQUE 67 
Pseudoleskea atrovirens B. et S. — Port de Venasque, 2300 m., = 
on rocks moistened by wa'er from melting snow. À robust form. 
Ps. patens Limpr. — Boulders, Lac d'Espingo. Fruiting well 
and very distinct; leaves highly papillose. Mons. Thériot in a 
letter dated 1 sept. 1903 informs me that this species, he believed, 
had not been recorded from France up to that time. He had, 
however, gathered it also in the following localities ; 
Vosges : Hohneck (28 Aug 1890). Plateau-Central : bois du 
_ Capucin et Rivau-Grand, au Mont-Dore (Aug. 1893) A further 
_ locality is Cantal: bois du Lioran (Aug. 1888), whence M. Nichok 
son received a specimen (under the name of Ps. atrovirens Var. 
_ filamentosa) from frère Héribaud. TS 
Ps. striata Dixon. — Below Lac d'Oo. . 
Brachythecium collinum B. et $. — Lac Glacé (Port d'Oo); Port 
de Venasque. js a 
B. populeum B. et S. — Boulder, St-Mamet, Luchon. À very 
eurious and perplexing plant was gathered in the above locality ; 
it formed a bright green sheet on the surface of the rock, with és 
broader, larger leaves than usual in B. populeum, having the 
. margin sharply toothed. The inflorescence appeared to be autoi- 
cous, and I sent a specimen to Mons. Theriot for his opinion, as. 
_it differed considerably from any form of B. populeum 1 had seen. 
M. Thériot replied that he was not able to find an autoicous 
_inflorescence, all the stems that he had examined bearing à flo- 
wers, without a single &. It therefore appeared to him probable de 
_thatit was Eurhynchium velutinoides. Upon looking again atthe 
spécimen previously examined I found that what I had taken for 
a single stem consisted of a fertile stem with à flowers only and 
another stem closely interlaced, but bearing © flowers only. This 
_ appeared to confirm the view that M. Thériot had taken, and 
_ Ishould have been content to accept it as Æurh. velutinoides, bad 
_ not M. Nicholson had occasion 10 compare it with an authentie 
spécimen of Æ. velutinoides from Bruch's herbarium, which ledhim 
to doubt the accuraey of the determination, and on investigation 
_ of his specimen of the St-Mamet plant he found it was undoub- 
_ tedly autoicous. This led lo a closer examination of my own spe- 
cimens, and resulted in establishing the fact that while certain 
stems were undoubtedly unisexual there wereothersbearing both o 
and à flowers: and moreover the few old setæ that remained 
| populeum rather than 
indicated the imperfect papillosity of B. 
the completely seabrous one of £. velutinoides. It appears there- 
 fore certain that the plant must be refered to 2. populeum, of 
which it is a remarkable form, since the inflorescence, usually 
