414 PROCEEDINGS OF THE ACADEMY OF [1895 



Bovista cellulosa E. & E. 



Beneath the surface of the ground. Fort Collins, Colorado, 

 August 1894. C. F. Baker, No. 302. 



Inner peridium depressed- globose, 1-1£ cm. diam. , coriaceous, 

 tough, grayish outside, clothed around the sides with a honey- 

 colored, favose-cellulose coat 1-2 mm. thick, and this again clothed 

 with a thin, grayish-yellow membrane to which the soil adheres ex- 

 ternally forming with this membrane, an outer peridium 1—1* mm. 

 thick and separating from the cellular layer with a clean, smooth 

 surface. Capillitium homogeneous, filling the inner peridium, 

 olivaceous, composed of simple or sparingly branched threads 3—4 /j. 

 thick and yellowish-hyaline, with abundant, globose, slightly rough- 

 ened or wrinkled, olivaceous spores 3-4 ;j. diam. 



This is closely allied to Bovista circumscissa B. & C. from which 

 it differs in its cellular coat and smaller, not so distinctly roughened 

 spores. B. circumscissa has spores 5 %— 6 £ <i. diam. 



Lycoperdon alpigenum E. & E. 



On the ground at the timber line, above, Cameron Pass, N. W. 

 Colorado, alt. 11,500 ft., July 1894. Prof. C. S. Crandall. No. 17. 



About 2 cm. diam. Peridium coriaceous, about 1 mm. thick, 

 brown outside and rimose-squamulose above. Capillitium rudimen- 

 tary, consisting of a few coarse, 6-10 //. diam., sparingly branched 

 or entirely disconnected, yellowish brown threads without any 

 attachment. Sterile base occupying about \ part of the cavity, 

 pale yellowish. Spores globose, nearly smooth 32// diam., with a 

 short pedicel. 

 Capnodium Lygodesmiae E. & E. 



On living stems of Lygodesmia juncea. Fort Collins, Colorado, 

 Oct. 1894. C. F. Baker, No. 293. 



Mycelium, consisting of closely septate threads 4-6 ,u. thick, loosely 

 interwoven, forming a thin, dirty drabcolored coating enveloping 

 the stems. Perithecia numerous, globose, ovate, or oblong-elliptical 

 20-90 x 20-40 n, obtuse at the apex, with coarsely cellular, olive- 

 brown walls. Sporules not abundant, oblong-elliptical, 5-8 X 3 //, 

 hyaline. The specc. show only the pycnidial stage of growth, no 

 asci being observed. 

 Acanthostigma scopulorum E. & E. 



On dead stems of Ligusticum scopulorum. Mts. west of ' ' Steam- 

 boat Springs," Colo., July 1894. Prof. C. S. Crandall, No. 123. 



