BOTRYTIS. 319 



Botrytis aclada. Fr. 



Forming minute brownish tufts; liypliae unbranched, 

 septate, erect ; conidia elliptic-oblong, almost colourless, 

 6-8 X 5-6 /x, aggregated in elongated clusters at the tips of 

 the hj'phae. 



Botrytis aclada, Fres., Beitr., p. 16, t. ii. f. 23-24; Sacc, 

 Syll., iv. n. 672. 



On decaying onion scapes. 



C. Cristularia. 



Tips of the branchlets scarcely inflated, cristato-crcnate or 

 digitate. 



Botrytis depraedens. sSacc. 



Forming grey determinate or confluent spots on leaves ; 

 hyphae colouiless, ascending, septate, wavj^, unbranched, 

 terminated by elliptical basidia-like cells, the terminal one 

 bilobed; head of conidia globose, subcompact; conidia 

 globose, hyaline, 12 /x diameter. 



Botrytis depraedens, Cooke, some remarkable moulds, 

 Quelet, Micr. Journ., v. ; Sacc, Syll., iv. n. 692. 



On sycamore leaves (Acer pseudo-platanus) , which it 

 destroj's. 



D. PJiymatoirichum. 



Tips of branches inflated and everywhere covered with 

 pointed wart-like projections bearing the conidia. 



Botrytis tricephala. Sacc. 



Tufts minute, elliptical, white, 3 mm. long; sterile hyphae 

 hyaline, loosely interwoven ; fertile simple, erect, septate, 

 10 /x thick, simple above or divided into two branches each 

 again divided into 3 shoit branchlets with globose inflated 

 tips, from which originate the globose conidia, measuring 5 /x 

 diameter. 



Botrytis tricephala, Sacc, Syll., iv. n. 698. 



Acmosporium triceplialmti, Phillips, in Gard. Chron., Mar. 8, 

 1884, fig. 61. 



On fallen leaves of Cryptomeria Japonica. 



