38 



Cincinnati Society of Natural History. 



5. Hydnum atroviride. — Dark green in color throughout. 

 Pileus fleshy-coriaceous, thin, convex then expanded, orbicular or 

 somewhat irregular, glabrous. Stipe more or less deformed, short or 

 elongated, central or eccentric. Aculei slender, acute. Spores 

 dark green, rough and irregular, 6-9 mic. in diameter. 



Growing on old wood. Auburn, Ala., Prof. George F. Atkinson. 

 Pileus 1-2 cm. in diameter, the stipe 1-2 cm. in length. It is easily 

 recognized by the dark green color in every part, even of the spores. 



ASTEROSTROMA, Massee. 



Resupinate-efTused ; subiculum fibrillose, dry, with intermingled 

 brown stellate hyphie. Spores white, hyaline. Allied to Corticium, 

 but readily distinguished by the brown stellate hyphaj present in the 

 subiculum. Journal of the Linnean Society, Vol. XXV, p. 154. 



Mr. Massee's genus is established with six species, five of them 

 from America. The following species sent by Prof. McClatchie from 

 California, is quite distinct from any of those described by Massee. 



6. Asterostroma pallidum. — Effused, closely agglutinate, 

 smooth, pallid, the margin entire ; subiculum of slender hyaline fibrils 

 with abundant intermingled brown stellate threads. Spores hyaline, 

 globose, with a few delicate spinules, 6-7 mic. in diameter. 



Growing on old wood and effused for several centimeters. Cali- 

 fornia, Prof. A.J. McClatchie. The rays of the stellate hyphae are 

 4-6 in number and simple, or sometimes with a branch or two ; they 

 are elongated and acute, measuring 40-60 mic. in length. 



7. Geaster velutinus. — Mycelium fibrous, rooting from the 

 base. Outer peridium externally invested with a dense minute gray 

 pubescence, splitting into 5 7 acute segments, the inner fleshy layer 

 thin, easily separable but persistent. Inner peridium globose, sessile, 

 smooth, pallid; the mouth conic, ciliate-fimbriate, seated in a circular 

 area. Columella subclavate, reaching the center ; threads of the 

 capillitium once or twice as thick as the spores, pale brown ; spores 

 globose, even, pale brown, 2^-3 mic. in diameter. 



Growing on the ground. Columbia, S. C, Prof. George F. 

 Atkinson. Inner peridium about 1 cm. in diameter, the segments 

 expanding to 3-4 cm. Peculiarly distinguished by its gray pubescent 

 outer surface. 



