OF PACIFIC COAST MOSSES. 15 



minus ve granulosis, fuscis, basilaribus subtubcrculoso lincaribus continuis, 

 superioribus ovato rotundatis. Capsula in pedicello brcvi innovationibus 

 duplo longioribus immcrsa, e basi brevicolla subcylindrica; peristomii dentes 

 irregulariter tripartiti, raro bifidi, cruribus innaqualibus vel liberis, vel 

 colijerentibus pertusis, laevibus. 

 Hab. falls of the Yosemite Valley, Bol. 



This species, remarkable for its large size, is intermediate between E. adculare 

 and R. protensum, Brid. Its color is the same as that of var. cataractarum of the last, 

 but the leaves turned to one side, even in the dry state, are larger, broader, and more 

 obtuse, mostly denticulate, like those of R. adculare, and nearly with the same areo- 

 lation. The decurrent base of the leaves is slightly enlarged in a narrow auricle whose 

 reticulation is particularly broad, resembling that of a Dicranum. The capsule, open 

 at the mouth, is nearly exactly cylindrical, and sometimes slightly curved. The teeth 

 of the peristome, generally tripartite near the base, are irregular, like those of R. pro- 

 tensum, but narrow, smooth, with well marked articulations. 



94. R. heterostydmm, Brid. 



Hab. Fort Colville, Lyall. 



95. R. lanuginosum, Brid. 



Hab. Vancouver's Island, Wood; Mt. Rainier, Oregon, U. 8. Exp. Willces. 



96. R. canescens, Brid. 



Hab. Vancouver's Island, Lyall. 



Var. foliis pellucidis acuminatis, angustius reticulatis, vix papillosis. 

 Hab. on shaded rocks near the Paper Mill, Marin Co., Bol. 



HEDWIGIA, Ehrh. 



97. H. ciliata, Ehrh. 



Hab. on stumps of Sequoia sempervirens, Bol.; on rocky cliffs of Bill Williams' 

 Fork, Big. ; British Columbia, Lyall. 



BRAUNIA, Brch. & Schp. 



98. B. Californica, Lesqx. 

 Hedwigia pilifera, Mitt. 



Hab. on inetamorphic rocks oh low mountains ; Mt. Diablo to 3,000 ft., very 



common and variable, Bol. ; Vancouver's Island, Lyall. 



In my description of this species, I have omitted to mention a few characters 

 which, apparently important when one specimen only is considered, are, on the whole, 

 local peculiarities or varieties only. This omission has led Mr. Mitten to suppose that 

 his Hedwigia pilifera of Vancouver Island might be a different species, its capsule being 

 plicate and the branches not inflated at the top. The capsule is indeed sometimes 

 plicate, but generally smooth, at least when moistened. On rocks exposed to the sun, 

 the branches of this species are longer and thickened at the top, and the perichtetial 



(IS) 



