ASTERELLA 55 
4-6. Ф receptacles with matured sporogonia, X 4. 
7-3. Transverse sections of thallus, showing in the latter a 2 ina»vatioa, Х 23. 
9. Transverse section of peduncle, X 41 
то. Capsule in dehiscence, Х 12. 
II. Capsule after dehiscence, X 12. 
то Мат, « 225. 
13. Spore, outer face, X 225. (The walls of (ће аггојае appear somewhat too 
rig d.) 
Figures all from soaked-out dried material ; 1-3, 5,and 7-9 from specimens col- 
lected by Mr. Geo. Hansen near Jackson, Amador Co.; 4, St. Helena (Mr. W. L. 
Jepson), 6, Olema, Marin Co. (Jepson). 
4. ASTERELLA РАТМЕК! (Aust.) Underw. Bot. Gaz. 20: 63. 1895. 
Fimbriaria Palmeri Aust. Bull. Torr. Bot. Club, 6: 47. 1875. 
Steph. Bull. Herb. Boiss. 7: 213. 1899. 
Fimbriaria nudata M. A. Howe, Erythea, I : 112. 1893. 
Steph. Bull. Herb. Boiss. 7: 212. 1899. ; 
Asterella пиала Underw. Bot. Gaz. 20: бї. 1805. 
Thallus simple or once dichotomous, 5—1o mm. long, 2-5 mm 
in maximum width, the segments or entire thallus obcordate 
to obcuneate, rather indistinctly areolate above, dark purple be- 
neath, broadly carinate, 30-40 cells thick in median parts, with 
numerous and deep air-chambers, the brown or purple, usually 
broad, undulate-crenate margins ascending, commonly appressed- 
connivent on drying, scales dark purple, very rarely decolorate, 
often extending slightly beyond the margin, a few sometimes 1n- 
conspicuously inflexed at the apical sinus: monoicous : antheridia 
occupying a lightly elevated oval or oblong, papillate area just 
posterior to the base of the 9 branch: receptacle maturing 2- 
(commonly 3 or 4) sporogonia, becoming obtusely conic-ovoid, 
scarcely lobed, sometimes constricted near the middle in drying, 
2.5-4 mm. in maximum width, nearly smooth or subrugose when 
dry, naked beneath, air-chambers large ; peduncle from apex of 
the thallus, light brown or stramineous, 12-40 mm. 
mm.) x .35—65 mm., naked, without invo 3 
rather brittle ; pseudoperianth white, the exserted portion globose- 
f emergence, with 8-12 
ents coherent at the 
apex: capsule nearly spherical, irregularly circu 
middle ; spores 60-80 и, at first almost с 
faint ridges or lines, at maturity very opaque, 
with a rather narrow warty border, the faces irregularly nies 
areolate; elaters 1—3-(mostly 2-) spiral, 120-270 и X 10-18 ft, 
sometimes branched, finally yellowish-brown. | 
