270 CALIFORNIA ACADEMY OF SCIENCES. TPROC. 3D Ser. 



In rich sandy soil under oaks, Alameda County, Calif., 

 June. 



Differing from M. cerebriformis in magnitude and in the 

 spore. 



Geopora Hk. 



Geopora Hk., Bull. Cal. Acad. Sci., Vol. I, No. 3, 1885, p. 168. 



Subterranean. Integument woolly, continuous with the trama. Hymenium 

 convolute. Asci cylindrical. Sporidia hyaline, oblong, smooth. 



78. Geopora Cooperi Hk. 



Geopora Cooperi Hk., Bull. Cal. Acad. Sci., Vol. I, No. 3, 1885, p. 168. 



Irregularly globular, 2-4 cm. in diam., covered with dense brown wool 

 which is continued inwards on the trama; absorbing base none; hymenium 

 white, not closely packed; asci cylindrical, 8-spored, 220 x 26 ^t; sporida hya- 

 line, oblong, smooth, with a large shining, eccentric nucleus, 28 x 20 (x. 



Type, No. 106 (3880), Harkness Coll. 



Haywards, Alameda County, Calif., January. Coll. by 



Dr. J. G, Cooper. 



79. Geopora magnata, sp. no v. 



Plate XLV, Figs. 340-34^. 



Large, 6 cm. in diam., semiglobose, color brown, with brain-like convolu- 

 tions marking its entire surface; septate hairs minute and in great abundance; 

 gleba white and marked by labyrinthine cavities; asci cylindrical, 8-spored; 

 spores white, destitute of oil globules, roundly ellipsoidal, 14 x 18 ii, much 

 shorter than those of G. Cooperi. 



Type, No. 255, Harkness Coll. 



Amongst Pinus insignis, Golden Gate Park, San Fran- 

 cisco, Calif., January. 



80. Geopora brunneola, sp. no v. 



Irregularly globose, 3 cm. in diam., color brown, corrugated, tomentose, 

 enclosed; gleba white; hymenium fleshy, densely crowded; asci cylindrical, 

 80 X 12^1, 8-spored; spores obovate, hyaline, 12 x 18 /a. The asci are much 

 shorter than in G. Cooperi and are densely crowded. 



Type, No. 102, Harkness Coll. 



