(34°) 



Vaucheria-Wke. sporangia (?) suggest its algal relationship, 

 but it seems to have no chlorophyll. 



TUBERCULARIACEAE. 



Pucciniopsis caricae sp. nov. 



Hypophyllous : spots suborbicular, thickened, i-i >£ mm. 

 in diameter, discolored and marked by a circumscribing 

 brown line above, black from the crowded sporodoches be- 

 low ; sporodoches black, orbicular, densely aggregated, 

 becoming subconfluent, 50-100 /*; conidiophores densely 

 crowded, clavate-cylindric, brown, continuous, 40-50 x 7- 

 8 /J. ; conidia light fuscous, obovate to subelliptic, conspic- 

 uously roughened by short, blunt papillae, at first continuous, 

 at maturity i-septate, scarcely constricted, rounded above, 

 narrowed below, 18-20 x 8-10 ft. 



On languishing leaves of Carica Papaya, Sanibel Islands, 

 Fla., May 18, 1901, S. M. Tracy, no. 7314. 



4. New California Fungi. 



Among a large and interesting lot of fungi collected by C. 

 F. Baker at or near Stanford University, Calif., during the 

 fall of 1901, the following seem to be new or noteworthy. 

 Descriptions of the fleshy species are mostly taken from the 

 very full and satisfactory field notes made by the collector. 



Agaricaceae. 



Russula cremoricolor sp. nov. 



Among decaying oak leaves ; pileus 6-10 cm., convex with 

 the center often depressed, dark cream color, disc darker, 

 smooth, viscid when young, margin incurved, entire ; lamel- 

 lae heterophyllous, subsinuate, subcrowded, broad, nearly 

 plane, pale cream color; spores white, globose, sparingly 

 echinulate, 5^-7/^; stipe 4-6 X 2^-3^ cm., irregular, 

 subequal, smooth, white, solid; flesh white, unchanging, very 

 peppery, odor not noticeable. 



Stanford University, Calif., Dec. 4, 1901, C. F. Baker, 

 no. 137. 



This somewhat resembles R. mustclina Fr., but differs in 

 the white not pallid stipe and in the cream-colored, not white 



