BoT.— Vol. I.] HARKNESS—CALIFORNIANHYPOG^l. 25 1 



21. Hydnangium album, sp. nov. 



Globose, color dirty white; peridium attenuate, membranaceous; gleba 

 ochraceous; cells minute; spores spherical, white, briefly echinate, 12 /ji in 

 diam. 



Type, No. 178, Harkness Coll. 



In the forest, Calistoga, Napa County, Calif., April and 

 May. 



Resembling H. candidum TuL, with the exception that 

 the spores are spherical and unusually large. 



22. Hydnangium lutecium, sp. nov. 



Oblong or subrotund, color white turning brown, base not visible; gleba 

 yellowish; cells minute; spores globose, white, briefly stipitate, crowded, 

 echinulate, guttulate, 12 fi'm diam. 



Type, No. 100, Harkness Coll. 



Found in somewhat sandy soil beneath Libocedrus decur- 

 rens in the mountain region about Alta, Placer County, 

 Calif., July. 



Closely resembling H. Carotcscolor Tul., except in its 

 inconspicuous base and the form of the spore. 



Octaviania Vitt. 



Octaviania Vitt., Monog. Tub., p. 15. 



Peridium continuous or cracked, cottony, running down into the sterile 

 base. Trama byssoid, easily divisible. Fruit-bearing cavities or cells at first 

 empty. Spores rough. (Berk. Outlines Brit. Fung., p. 292.) 



23. Octaviania brunneola, sp. nov. 



Globose, 5 cm. in diam., common integument smooth, absorbent base dis- 

 tinct, terminating in minute fibrillae; cells various, subrotund or tortuous; 

 basidia 4-spored; spores orbicular, brown, echinulate, 6-10 ix in diam. 



Type, No. 82, Harkness Coll. 



Mt. Tamalpais, Marin County, Calif., April. 



