4 ON CALIFORNIAN MOSSES. 



12. BARBULA v i n c a 1 i s Briil. 



Very common and variable around San Francisco ; on rocks, boulders, and wet ditches 

 near the bay. May. Var. a has the ramification, form of leaves, &c., of Barbula 

 vinealis; but the operculum and peristome of Barbula flexifolia Hmp. Var. ,9 

 flaccid a Bryol. Eur. has the capsule and operculum of Barbula vinealis, 

 and the long-linear, lanceolate, canaliculate, opcn-reflexed, loosely-imbricated leaves of 

 Barbula flexifolia. This variety is apparently the equivalent of BARBULA e 1 a t a 

 C. Milll. Same habitat as the normal form. 



13. BARBULA flexifolia Hampe foe. cit. 



The characters separating this species from Barbula vinealis are, 1st. The 

 leaves crisped when dry, squarrose-reflexed when humected, with revolute margins. 2d. 

 The somewhat narrower, dark red capsule, with a longer operculum. 3d. The longer and 

 more twisted teeth of the peristome, and their red color. These last characters are un- 

 reliable, the teeth varying in color, and being more or less twisted even on the same 

 specimens, according to the age of the capsule. The characters taken from the leaves are 

 also unreliable, and as this moss covers the sand along the shores, and in the vicinity of 

 boulders covered with Barbula vinealis, these differences, I think, may be ascribed 

 to variations from change of habitat. 



14. BARBULA virescens Sp. nov. Inflorescentia, ramifioatione priori proxima, diffcrt: Caulo longiori, 

 inferne bruneo, superne amoene pallide virescente ; foliis longioribus c basi lanceolatis, margine usque ad apiccm 

 revolutis, undulatis, areolatione duplo laxiori, distincta, areolis ovalibus ; perichtctialibus aportis ; operculo breviori, 

 annulo latiori. 



This species is intermediate between Barbula flexifolia Hmp. and Barbula 

 semitorta Sal., two species already closely related. From the first it differs essen- 

 tially by the areolation ; from the second, by the revolute margin of the longer leaves, a 

 longer and more twisted peristome, and a broader basilar membrane. On rocks, Redwood 

 and Oakland, near San Francisco. 



15. BARBULA artoearpa Spec. nov. Dioica, compaete cscspitosa. Caule gracili, brevi, subsimplici. 

 Foliis inferioribus brevibus, e basi ovata lanceolatis, nervo valido percurrente brevi-subulatis ; superioribus longi- 

 oribus, longius lanceolatos ubulatis ; Perichaetialibus latioribus, basi amplcctentibus superne coarctatis subulatis 

 erectis ; Areolatione foliorum compacta illaB Barbulse vinealis simili ; Capsula ovata cylindrica brevi gracili, ore 

 coaretata, operculo longe rostrato subcurvato; Annulo simplici persistente lato; Peristornii dentibus gracilioribus, 

 albidis, semel tortis. 



Except for its pretty large annulus, this species would agree with Barbula gracilis 

 Scliw. which it exactly resembles by the ramification, the form of the leaves and of the 

 capsule. It is also nearly related to Barbula subfallax C. M'till, which has also 

 no annulus, and a shorter basilar membrane. Mount del Diablo, California. 



