OF PACIFIC COAST MOSSES. 15 



minus ve granulosis, fuscis, basilaribus subtuberculoso linearibus continuis, 



superioribus ovato rotundatis. Capsula in pedicello brevi innovationibus 



duplo longioribus immersa, e basi brevicolla subcylindrica; peristomii dentes 



irregulariter tripartita, raro bifidi, cruribus inaequalibus vel liberis, vel 



cohaerentibus pertusis, laevibus. 



Hab. falls of the Yosemite Valley, Bol. 



This species, remarkable for its large size, is intermediate between R. acicvlare 



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. aciculare, 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 Dicranwm. 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- 



t< nsum, but narrow, smooth, with well marked articulations. 



94. R. heterostychum, Brid. 



Ilab. Fort Colville, LyaU. 



95. R. lanuginosum, Brid. 



Hab. Vancouver's Island, Wood; Mt. Rainier, Oregon, U. 8. Map. Wilkes. 



96. R. canescens, Brid. 



Hab. Vancouver's Island, LyaU. 

 Var. foliis pellucidis acuminatis, angustius reticulars, vix papulosis. 

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



HEDWIGIA, Ehrh. 



97. H. ciliata, Ehrh. 



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

 Fork, Big. ; British Columbia, LyaU. 



BRAUNIA, Brch. & Schp. 



98. B. C alitor nica, Lesqx. 

 Iledivigia pilifera, Mitt. 



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

 common and variable, Bol. : Vancouver's Island, LyaU. 

 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 Hedxigia 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 perichaetial 



(15) 



