50 MARCHANTIACEAE 
hering at the rather obtuse apex, their margins plane or lightly 
reflexed ; capsule prolate-ellipsoidal ог subglobose, the apical third 
or half of its wall falling away irregularly in dehiscence leaving 
behind a cup with a fimbriate-lacerate margin; seta very short; 
spores yellow, 90-135 и, obscurely tetrahedral, furnished when 
mature, especially at the angles and on the outer face, with con- 
spicuous irregular ridges or wings, the entire surface minutely 
reticulate (meshes 1-5 и); elaters 150-240 м x 12-18 и, obtuse, 
slightly flexuous, with one or, more rarely, two, yellow spiral 
nds. 
Exsicc. Hep. Bor.-Am 135 (as Fimbriaria Californica). 
Hep. Am. 119 (as Fimbriaria Californica). 
“Оп open or lightly shaded banks, often about rocks, from San 
Diego as far north, at least, as Mendocino and Shasta counties. 
Berkeley ; San Leandro (Underwood) ; San Francisco (Bolander, 
Brandegee, Howe) ; Mill Valley ; Duncan's Mills, Sonoma Co.; 
Ukiah and Half-Way House, Mendocino Co.; Oak Run, Shasta 
Со. (Baker & Nutting); Jackson, Amador Co. (Geo. Hansen); Mur- 
phy’s, Calaveras Со. (J. Burtt Davy); Mt. Diablo, Contra Costa 
Co.; Knight's Landing, Stainslaus Со. (F. W. Bancroft); Fresno 
(F. P. Nutting); Kaweah River, Tulare Co. (Coville); Lake San 
Andreas, San Mateo Co.; Palo Alto (Campbell); Santa Cruz (Far- 
low); Santa Barbara (Farlow); Nordhoff, Ventura Co. (Miss Jac- 
queline K. Newton); Santa Monica (Dr. Hasse); Pasadena (Un- 
derwood, McClatchie, Miss Teed); Santa Ana Hills (Parish, no. 
1728); Twin Oaks, San Diego Co. (F. W. Koch), San Diego (Far- 
low). First collected by Bolander and by Bigelow. 
Somewhat resembling in size and habit Asterella Lindenbergiana 
Lindb. (Fimbriaria Lindenbergiana Corda), but very distinct in 
being dioicous, in the broader, obovate thallus-segments, in the 
more strongly lobed receptacle, the white pseudoperianth, е . 
much larger, more prominently rugose-winged, more minutely re- 
ticulate, yellow spores, the yellow spiral band of the elaters, the 
irregular dehiscence of the capsule, etc. 
PLATES 95 AND 96. ASTERELLA CALIFORNICA. 
I. 9 plant, natural size, with fully developed receptacle and peduncle. 
2 and 3. Male plants, natural size. 
4. A large sterile thallus, natural size. 
5. Ф plant with young receptacles, natural size, 
