MOSSES AND LIVERWORTS. 187 



near the foot of Sail Francisco mountain, Mogollan range, which apparently belong to 

 0. cupulalum. 



GRIMMIE.E. 



SCHISTIDIUM APOCARPUM, Bryol. Europ. Schistid. monogr., p. 7, t. 3. On rocks at the crossing 

 of the Rio Colorado. 



GRIMMIA CALIFORNICA, (sp. nov.): dioica ; laxe caespitosa ; foliis erecto-patentibus elongato- ^ 

 lanceolatis cariri.to-concavis margine revolutis, costa in acumen hyalinurn denticulatum 

 excurrente ; capsula ovali oblongave, sub-pyriforrni pendula, sicca vix costata ; pedicello 

 breviusculo arcuato ; operculo recte longe rostrato ; calyptra dimidiato-mitriformi basi 4 5 

 fissa ; annulo majusculo triplici ; peristom. dentibus bifidis. Oakland, opposite San Francisco; 

 also near Sonora. Approaches near to G. trichophylla, Grev.; but that has less crowded, 

 longer, more slender, and flexuous leaves, and capsules distinctly and prominently ribbed when 

 dry, with subflexuous and longer pedicels. 



G. Olneyi, Sulliv., a more closely related species, is not so robust; has leaves canaliculate- 

 concave not recurved on the margin ; when flattened, linear-lanceolate from an ovate base, 

 and the teeth of the peristome perforated (not bifid) at their apices. 



G. Californica differs from both species in the more or less obovate outline of its capsule, 

 with an evident collum. 



In the same habitat occurs a variety differing from the typical form in the strong recurvation 

 of its leaves, an unusual feature in this genus, and which is to be found in only one other 

 published species, the Algerian Grimmia ancistrodes, Mont., which, according to original 

 specimens from Dr. Montague, is likewise dioecious, not monoecious, as stated in his Sylloge. 

 This variety may prove to be a distinct species. (Plate IV.) 



Gr. TRICHOPHYLLA, Grev.; Bryol. Europ. Grimm, monogr., p. 16, t. 9. Shaded rocks, near x 

 Benicia. 



G. PULVINATA, Smith ; Bryol. Europ. Grimm, monogr. p. 12, t. 4. Eocks on Bill Williams^ * 

 fork, near the mouth of Santa Maria Creek. There occurs in the collection sterile specimens of 

 a Grimmia agreeing very well with G. commutata ; locality not mentioned. 



HEDWIGIELE. 



HEDWIGIA CILIATA, Ehrh.; Bryol. Europ. Hedwig. monogr., p. 5, t. 1 and 2, On rocky cliffs, -V- 

 head waters of Bill Williams' fork, near the Aztec Pass. 



POLYTRICHE.-E. 



POLYTRICHCM JUNIPERINUM, Hedw.; Bryol. Europ. Polyt. monogr., p. 12, t. 15. Hillsides near -V 

 Downieville, on the Yuba river. 



P. PILIFERUM, Bryol. Europ. Polyt. monogr., p. 11, t. 14. Rocky places above Sonora, base 

 of the Sierra Nevada. 



BRYKfi. 



AULACOMNION ANDROGYNE, Schivcegr.; Bryol. Europ. Aulacom., monogr., p. 11, t. 4. On the/, 

 ground, or on much-decayed logs. A common species in Oregon and California, somewhat 

 larger than the European form, and, unlike it, fruits copiously. 



BRYUM TOZZERI, Grev.; Bryol. Europ. Bry., monogr., p. 41, t. 16. Coast mountains near x 

 Oakland. 



B. PYRIFORME, Hedw.; Bryol. Europ. Bry., monogr., p. 45, t. 18. Banks of streams, Qui- "* 

 qualmungo Ranch, near the Cajon Pass. 



B. BiGELOVir, (sp. nov.) : dioicum ; laxe casspitosum elatum multoties innovando-ramosum ex 

 apice ramulosum ; foliis caulis innovationumque inferne parvis distantibu* ascendendo majoribus 

 imbricantibus erecto-patentibus oblongo-ovatis (comalibus lanceolato-acuminatis) concavis mar- 

 gine subintegro vix recurvis, costa valida percurrente vel infra apicem desinente ; capsula alte 



