6 ON CALIFORNIAN MOSSES. 



22. Barbula rural is Hedto. 



On rocks near Mission Dolores, Oakland, &c. Very common in California. May. 



23. Barbula M filler i Bryoi. Ear. 



On rocks ; less frequent than the former, and found in the mountains. Mount Diablo. 

 May. 



24. Barbula la ti folia Bryol. Ear. 



On a fence-post near a creek three miles from San Rafael, Marin County. April, 

 1863. 



25. Desmatodon flavicans Br. & Schmp, 

 On clay soil, San Francisco. Rare. 



26. Desmatodon nervosus Br. & Schmp. 



On the walls of an old Indian abode, and on clay soil; rare. It differs from the Euro- 

 pean form by the leaves being Ungulate, a little; more obtuse and shorter apiculate, and 

 by the inflation of the strong nerve above the middle. This last character is not persis- 

 tent. 



27. Anacalyi'ta Starkeana Bryol. Eur. var. fi b r a o h y o d u g. Wcisia affinit Hook & Tayh 

 Clay soil, San Francisco. 



28. Tetraj'His pellucid a Iledw. 

 Rotten wood. 



29. Enoalypta vulgaris L. 



Monte del Diablo, on clay soil, fissure of rocks. 



30. Zyoodon Californicum G. Milll. Mr. Miillcr lias not seen the male plant of this species. Inflo- 

 rescentia dioica; planta mascula in iisdem cscspitibus intcrmixta, femineis validiori sub fioribus innovanto ramosa ; 

 floribus masculinis pcntaphyllis; perigonialibus extcrnis duobus o basi dilatata longo linearibus internis brcvibus 

 coticavis ovato-lanceolatis aeutis, versus apicem dentatis ncrvo ultra medium ovauido; antheridiis nurnerosis para- 

 pliysibus que brcvibus paucis. 



Grows on shaded rocks in a creek, near the road to a paper mill, Marin County. April, 

 1863. 



31. Ortiiotriciium Texan um Sul. 



The teeth of the peristome of this species arc often separated by sixteen rudimentary 

 fugacious cilioli. The inflorescence is monoecious and the male dowers axillary. On 

 shaded stones near Oakland, San Francisco. 



32. ORTrioTRiciiUM eylindrooarpum Spec.nov. Orthotrioho strangulato affine, differt ; capsula longi- 



