f'nnc stalks. Tii one ease it was found on a stalk wliich was otherwise 

 normal, and in many instances it has been noted acting as a wound 

 parasite. It is quite usual to consider it as a cause of a dry rot of 

 cane stalks. It has been reported in this connection from both Java 

 and Brazil (100.) 



ScyTiNOTus DiSTANTiFOLius Murrill. 



Porto Eico. — On dead leaves, Rio Piedras, Jan., 1914, 1197. On 

 dead leaves of PaspaJum sp., Rio Piedras, June, 1917, 6494. Deter- 

 mination by J. A. S. 



A delicate, white, sessile form, 5-10 mm. broad. 



Lyooperdon albidum Cooke. 



Sessile, globose, white, 8-12 mm. diam. ; spores smooth, clay-col- 

 ored, globose, 3 nm. diameter. 



Porto Rico. — On cane trash, Rio Piedras, Oct., 1915, 3171; Cor- 

 tada. Jan., 1912, 4168. Determined by Prof. Lloyd. These are the 

 iirst collections other than the type. 



Lycoperdon pusillum Fr. 



Porto Rico. — On cane trash, Rio Piedras, Feb., 1915, 2576. De- 

 termined by Prof. Lloyd. Not common. 



Lycoperdon pyriforme Schaef¥. 



Porto Rico. — In cane fields, Rio Piedras, Jan., 1912, 4187. Apr., 

 1912, 4324; Plazuela, July, 1911, 4075. Very common. 



Cyathus poeppigii Tulasne. 



Porto Rico. — On dead cane stalks, Rio Piedras, Nov., 1911, 4082. 

 Common on dead wood. First determined by Prof. Lloyd. (PI. 

 XXIII, fig. 6.) 



SPJIAEROBOLUS STET.LATITS Tod. 



Outer peridium stellate-lacinate, lobes 5-8, averaging 1.5 mm. 

 diam. ; inner peridium covered by an orange-colored gelatinous en- 

 velope which at maturity swells and causes the single sporangiole to 

 be forcibly ejected, spores hyaline, cylindrical-ovate 5.1 X 10.2 mu. 

 Description modified. 



Porto Rico. — On rotten cane trash, Rio Piedras, Jan., 1913, 4750. 

 Also collected on rotten bamboo, leaf -mold, etc. (PI. XXTTT, fig. 4: 

 pi. XXVI, fig. 1-3.) 



219 



