OF PACIFIC COAST MOSSES. 33 
223. H. pinnatifidum, Sulliv. and Lesqx., Musci Exsice. Amer., Hd. 2d, No. 513. Ab 
Hypno aureo affinissimo distinguitur: capsula cernua annulo majori, foliis 
brevius filiformi acuminatis, reti multo laxiore denique inflorescentia revera 
dioica. 
224. H. Nevadense, Spec. nov. Dioicum, laxe cxspitosum, robustum, lutescente 
viride. Caulis primarius repens pinnatim ramosus, ramis brevibus, horizon- 
talibus vel longioribus, irregulariter divisis, arcuato curvatis. lolia lanceo- 
lata, sensim brevi-acuminata, homomallo-curvata, apice minute serrata, costa 
carinata, profunde biplicata, margine revoluta vel reflexa, cellulis alaribus 
perpaucis, irregulariter ovalibus. Capsula in pedicello rubello erecta vel 
sub cernua, ovato-cylindrica, longe rostrata, peristomii interni cilia vel rudi- 
mentaria, vel nulla; annulus compositus. 
Hab. on rocks in the spray of Nevada and Bridal Veil Falls, Lol. 
Is distinguished from HZ. lutescens, Huds., by its green color, larger thick stems 
and branches ; the evidently pennate ramification, less marked, however, than in //. 
aureum ; the alar reticulation scarcely marked by a few oval cells; by the large capsule, 
the peristome without cilia, ete. The leaves are more regularly and deeply plicate 
than in any other Camplothecium. 
24. BRACHYTHECIUM, Bryol. Eur. 
225. H. letum, Brid. 
Hab. the Yosemite Valley. The plants are sterile, and the species not un- 
doubtedly ascertained. 
226. H.salebrosum, Hoffm. 
Hab. Fort Colville and Pend’ Oreille, Lyall. 
227. H. collinum, Schl. 
Hab. Cascade Mts., Lyall; Mr. Bolander sent it sterile from the Yosemite 
Valley. 
228. H. Hillebrandi, Spec. nov. Monoicum, tenellum, cespitibus intricatis conden- 
satis sericeo-lutescentibus. Caulis erectus, plicatus, irregulariter subfascicu- 
latim ramosus cum ramis undique divergentibus radiculosis. Folia laxe im- 
bricata subsecunda, e basi ovata, sensim lanceolato-acuminata, concava, 
basim tantum plano reflexa, toto margine serrulata, costa medio vel paulo 
ultra evanida, areolatione angusta elongato-polygona, angulis dilatata, quad- 
rato chlorophyllosa. Pericheetialia pellucida, laxe areolata, plerumque 
enervia, e basi ovata, sensim in acumine longo, gracili erecto vel flexuoso sub- 
integro attenuata. Capsula in pedicello breviusculo inferne rubello subru- 
goso, superne pallido levi, brevis, turgide ovata, equalis, erecto raro in- 
clinata, sicca ore dilitata, operculo conico brevi obtuso truncato. Peristomii 
externi dentes longiores inferne pallide lutei, superne albidi, processus 
tenerrimi pellucidi dentibus perforatis ciliis duobus articulatis interpositis ; 
annulus ? 
E (33) 
