12 



ON CALIFORNIA^ MOSSES. 



characters of his species agree well with Mailer's description, and also with our specimens. 

 It is remarkable enough by its granular areolation (arcolis reticuli minutissimis Hook.), 

 its whitish or nearly pellucid nerve (nervo pallido saepe sub pellucido Hook.), the long 

 dentate flcxuous acumen of the leaves (folia ramea omnia longc acuminata quandoque 

 pilo flexuoso tcrminata Hook.), its short, rough, red pedicel (seta uncialis rubra tubercu- 

 losa Hook.) &c. Mr. Hooker even mentions the split teeth of the internal peristome re- 

 sembling that of a 15 a r t r a m i a, and the general resemblance of the moss in some points 

 with H y p n u m a b i e t i n u m. Midler's description of II y p n u m ram u 1 o s u m 

 agrees perfectly and in every point with our specimens. On shaded rocks near the Paper 

 Mill, Marin County. 



65. Hypnum (lliiYNCOSTEauiM) ruseiforme Weie. 

 Spring in a canon near San Francisco. 



66. Hypnum (Tiiamnium) B i g e 1 o w i i Sal. 



On the bark of trees and on the ground. Very variable in size. 



07. Hypnum (Eurynciiium) Stock csii Bryol, Ear. 

 On the ground in the shade. Common. 



08. Hypnum (Eurynciiium) Whipplcanum Sul. Bot. of the Ex. 



Specimens of this species found mixed with Fissidcns limbatus in Mr. Bolan- 

 dcr's collection, show that the pedicel is sometimes smooth. On shady ground near San 

 Francisco. 



09. Hypnum (Eurynciiium) Orcganum Sul. 



On shaded old logs in a creek, Marin County. 



70. Hypnum (Isotiiecium) Brcwcrianum Spec. mm. Ilypno myosuroidi per affine differt : oolore 

 sordidc-luteo viridi, caespitibus densioribus, ramis crassioribus, subjulaccis, raro elongatis filiformibus ; foliia arete im- 

 brieatis appressis, versus basim latioribus, supcrnc subito in aouraino brevi contracts, valde concavia vix dentieu- 

 latis. Ecriehaitialibus longius lancoolato subulatis rcflcxis j capsula cylindrica breviorc rufa. 



This species could be considered as Hypnum s t o 1 o n i f e r u m Hook., but that 

 this last species has, according to Hooker, drooping capsules and plants of a larger size. 

 Hooker's plant was collected by Menzies on the roots of trees, even pending from branches. 

 Ours, according to Mr. Bolandcr's remarks, grows on granite rocks near Mission Dolores. 

 It was also collected by Professor Brewer of the Californian State Geological Survey, and 

 is dedicated to him. 



71. Hypnum (Brachytiieoium) Bolanderi Spec. nov. Dioieum laxe lateque crespitosum pallida amoene 



viride. Caulc diverse ranioso, raruis elongatis flexuosis, vel subcrectis rigidis sub pinnatim vage ramosis; Foliis 

 undique imbricatis apertis, ovato-lancoolatis brevitcr acuminatis margine piano undiquo serrulatis, nervo ultra 



