46 
lanceolate, etc. G. Jamesii, Aust., has a similar peristome; but 
the capsule, operculum, texture of the leaf, etc., are very different. 
Grimmia (Coscinodon) Rauei, 7. sp.—Plante in cxespites sordido- 
virides facile solubiles congestw, terra obrute ; foliis obovatis et 
obovato-spathulatis Jaxe imbricantibus breviter acuminatis margine 
planis integerrimis vel ad apicem lenissime eroso-dentatis, apice in 
pilum longiusculum producto, costa valida sub apice finienti, inflo- 
rescentia monoica, capsula in pedicello brevissimo immersa oblongo- 
ovali pallida basi truncata estriata tenui membranacea, annulo lato 
persistente, operculo brevi rostrato, peristomio rubro siccitate erecto 
in humido paululum hiante dentibus lineali-lanceolatis apice fii- 
forme attenuatis integris dimidio inferiore rimosis exstructo, calyp- 
tra mitreformi multoties sed leviter plicata ad capsule tedium 
descendente.—Colorado, Dr. Brandegee, (Rau). 
Shape and texture of the leaf much as in Grimmia Wrightii 
(Sulliv.) (Coscinodon Wrightii, Sulliv. Icon. Muse. p. 71, t. 45), 
which Dr. Brandegee has also found in Colorado; but that has the 
stems subjulaceo-clavate, leaves more appressed, the apex more 
scarious and decidedly denticulate, costa extending into the much 
longer more terete and more scabrous hair-point, capsule shorter 
and broader, teeth ot the peristome much shorter, more cribrose, 
fissured at the apex, scarcely if at all divergent when moist (erect 
when dry). Grimmia crinita, Brid., also has leaf of about the 
same shape and texture, but the costa is lighter and excurrent; the 
capsule is on a longer more strongly curved pedicel, calyptra smooth, 
stems clavate, etc, 
Mem. Grimmia ( Coscinodon) cribrosa, Hedw., has the peristomal 
teeth more or less incurved when dry and slightly spreading when 
moist. 
Weisia (Gymnostomum) Brandegei, x. sp.—In adspectu for- 
mis majoribus W. viridule simulans, sed foliis brevioribus ratione 
latioribus margine latius lamellatis apice haud vel brevius mucron- 
ulatis, capsula gymnostoma exannulata? flore mase. majore, etc., 
statim dignoscitur. Colorado, Dr. Brandegee (Rau). 
Capsule rather strongly ribbed when dry, often decidedly irregu- 
lar, and then with the mouth oblique. Texture of the leaves, and 
also of the capsule, about as in W. viridula. 
$36. New Hepatic, by C. F. Austin. 
Riccia Californica, Awst,, Ms, 1865.—Fronde solida glanca, la- 
ciniis obovatis cuneatisve supra planis canaliculatisve reticulatis 
margine inferne semper nudis apicem versus dense hirsuto-ciliatis 
vel nonnunquam (forsitan in planta juniore) etiam nudis, ciliis 
tenuis subfuscis; sporis #. glauce. California, Bolander. 
About the size of R. glauca and R. Leseurii, and somewhat inter- 
mediate between them; differing from the former in the often plane 
ciliate divisions of the frond, and from the latter by the more 
crowded slenderer subfuscous ciliz situated only at or near their 
apices. 
Ppolyotus subsimplex, ». sp.—Caule subsimplici teretiusculo, 
foliis oblique ovatis subquadratisve apice magis minusve emar- 
