21 LESQUEREUX — CATALOGUE 



in podicello longo rubello, inclinata, elongato-obconica, sub ore sub con- 

 stricta, rufescens, operculo mamillari rubello, annulo latiori, Peristoma 

 interni dentes angusti, ciliis crassis articulatis interpositis. 

 Hab. on moist rocks, Yosemite Valley. 

 This fine species is somewhat related to B. pseudo-triquetrum, with which it 

 grows, but easily separated by the enumerated characters. The ramification is the 

 same as in B. Bigeloivii, Sulliv., from which it differs by the long capsule and the 

 form of the leaves. The top of the branches is purplish, abruptly crimsoned, as if 

 it had been plunged in carmine. 



157. B. occidentale, Sulliv. 



Hab. on ground, rocks, old logs, very common in California, Bol., Big., Brew. 

 This species is most intimately related to B. capillare, Linn., presenting most of 

 the forms which are marked as varieties in the European species. I owe to the kind- 

 ness of Prof. Hooker, specimens of a Bryum named B. capillare, by Mr. Mitten, col- 

 lected in Vancouver Island, b}' Lyall, and which is evidently a large form of B. occi- 

 dentale, and at the same time undistinguishable from B. capillare. It would be too long- 

 to enumerate here all the varieties of tho California moss. The most marked one is a 

 small form with slender innovations emerging from under more distinct and thicker 

 capsules having with generally longer pointed leaves, narrow, cylindrical proportionally 

 longer, broad red capsules and a proportionally broader annulus. But even the largest 

 forms, whose capsules are generally pale brown and the leaves short, pointed, bear in 

 the same tufts capsules of various color, from pale buff to dark red, with leaves also 

 elongated or rather contracted into a piliform point. Though, from its larger annulus 

 — especially its shorter pointed leaves and peculiar ramification — this species may be 

 separated with some right from B. capillare, it does not appear possible to subdivide 

 its varieties into species. One of these divisions is B. Baueri, Hampe, which, accord- 

 ing to the author, differs from B. capillare; sta'ura minori, folds brevioribus immarffinatis, 

 nervo excedente flexipili. 



158. B. Oreganum, Sulliv. Wilkes' U. S. Expedition, p 10, tab. vii. 



Hab. Oregon, Wilkes' U. S. Exp. 



159. B. obconicurn, Hrusch. 



Hab. flanks of Santa Cruz Mrs., 2,000 feet, Brew. 



100. B. Canariense, Brid. 



B. Billarderii, Schwaegr. 



Hab. canons in Monte del Diablo. Bol. 



101. B. pseudotriquetruni, Schwaegr. 



Cum var B. gracilescens, Schp. 



Hab. wet rocks, Big Trees, Bol. ; Fort Colville, Lyall. 



162. B. DuvaUii, Voit. 



Hab. Eureka, Bol., in good though sterile specimens ; Fort Colville, Lyall. 



163. B. turbinatum, Hedw. 



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