Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean: Vol. 4, Pt. 3

MOSSES AND LIVERWORTS.
FUNARIEE.
FUNARIA HYGiROMETRICA, Hedw.; Bryol. Europ. Funar. monogr. p. 8, t. 4. Various places.
F. MUHLENBERGII, Sc7hwcegr.; Bryol. Europ. Funar. monogr. p. 6, t. 1. -Near the crossing of
the Rio Colorado on the line of the survey.
F. HIBERNICA, Hook.; Bryol. Europ. 1. c. p. 7, t. 2. Cajon Pass, Sierra Nevada.
FONTINALEE.
FONTINALIS CALIFORNICA, (sp. nov.): caulibus flaccidissimis multoties divisis ramosis, ubique
foliosis; foliis concavis patentibus distantibus late ovalibus laxiuscule areolatis, cellulis utriculo
primordiali subsoluto instructis; fructu non viso. Rivulets in the coast range of mountains
north of the bay of San Francisco.
Resembles F. Eatoni, Sulliv., but is a somewhat smaller plant, with more distant and spreading,- shorter, broader, and less acuminated leaves of a looser areolation, composed of shorter and
wider cellules, in which the primordial utricle is more or less conspicuous; color reddish-brown
or copperish.
The species of this genus have each a peculiar aspect or facies, (difficult to describe,) which is
little liable to variation in consequence of the uniformity of their habitat. Their sporules have
a diameter of about -TI of a line, not ~r, as erroneously stated in the second edition of Gray's
Manual of Botany.
LEUCODONTEE.
PTERIGYNANDRUM FILIFORME, Hedw.; Bryol. Europ. Pterigyn. monogr. p. 3, t. 1. Near San
Francisco; on trees.
PTEROGONIUM GRACILE, Swartz.; Bryol. Euro. Perogon. monogr. p. 4, t. 1. With thelast.
ALSIA CALIFORNICA, Sulliv. in Proceed. Amer..cad. of Arts and Sci., Jan., 1855; also in
Cryptogam.- of the U. S. Exp. Expedition, t. XXV, mned.; Neckera Californica, Hook. & Arn. n
Beechy's Voy. p. 162. On trees; not uncommon.
LEPTODON CIRCINATUS, (sp. nov.): dioicus; ramis primariis e rhizomate horizontali oriundis
inferne nudiusculis superne dense frondiformi-pinnatis (siccitate circinatis) paraphyllosis; fols
quinquefariam imbricatis erecto-patentibus lanceolatis acuminatis subcarinato-concavis evanidicostatis dorso papillosis margine parum recurvis superne serrulatis, retis pellucid areolis
minutis chlorophyllosis ovali-rhombeis e costa radiatim seriatis alaribus subquadratis confertioribus; fioribus masculis substipitatis axillaribus secus rachim utrinque crebre dispositis;
antheridiis numerosis copiose paraphysatis; fructu ignoto. Coast range of mountains south of
San Francisco. Grows in dark-green cushion-like masses. The main stem or rhizoma hard,
woody, buried in- the soft bark of trees, and throwing out at right angles numerous elastic
primary branches-11 to 2 inches long-of which the lower half is simple, the upper expanded
into a densely pinnated ovate frond, circinate when dry. The simply pinnate ramification of the
primary branches, and the shape of the leaf, separate this species from its cogeners. (Plate I.)
ANTITRICaIA CURTIPENDULA, Brid.; Bryol. Europ. Antitric. monog. p. 2, t. 1. Oakland, opposite San Francisco. The specimens are without fruit, and differ from the normal form (which
has likewise been found in California) in its julaceous branches, and shorter and more crowded
leaves, resembling the var. Hispanica, which occurs mostly in the south of Europe.
HYPNEE.
:YPNUM BIGELOVII, (sp. nov.): dioicumn, subdendroideum; surculis e caule rhizomatoidea
arcuato-ascendentibus fasciculato-ramosis, ramis ramulisque complanatis; foliis patentissimis
bifariis elongato-oblongis breviter acuminatis apice serratis subplanis, marginibus uno latere
inflexis, costa sub apice evanida, areolatione densa superne rhonibea inferne oblonga parenchy
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