SPOROSCHISMA — DENDRYPHIUM. 423 



Tribe 20. Bendrijpliieae. Sacc. 

 DENDEYPHIUM. Wallr. (fig. 13, p. 397.) 



Vegetative hypliae creeping or almost absent, fertile 

 hypbae erect, more or less brancbed at tbe tip ; conidia 

 coloured, more or less cylindrical, septate, springing from 

 the tips of tbe brancbes, usually produced in simple or 

 brancbed cbains. 



DendrypJiium, Wallr., Fl. Crypt., ii. p. 300 ; Sacc, Syll., 

 iv. p. 487. 



Dendryphium comosum. Wallr. 



Broadly eifused, blackisb, bypbae septate, 9-12 (jl tbick, 

 dark brown, septate, simple, bearing at tbe apex simple or 

 brancbed cbains of cylindrico-fusoid, straight or sligbtly 

 curved, yellowisb-brown, 3-5 septate conidia, 25-35 x 

 G-7 fjL, sligbtly constricted at tbe septa. 



Dendryphium comosum, Wallr., Fl. Crypt., n. 191:3; Sacc, 

 iv. n. 2335. 



Forming blackisb stains on decaying herbaceous stems, 

 especially nettle. 



Dendryphium fumosum. Fr. 



Tufts small blackisb-brown, bypbae erect, sbort, dark 

 brown, septate, paler upwards, brancblets towards tbe apex 

 pale, closely septate, spreading ; conidia catenulate, cylindric- 

 fusoid, pale brown, 9-13 septate, not constricted at tbe 

 septa, 25-35 X 5-6 /x. 



Dendryphium fumosum, Fr., Summa Veg. Scand., 504 ; Sacc, 

 SylL, iv. n. 2337. 



On berbaceous stems, especially umbellifers. 



Dendryphium griseum. B. & Br. (fig. 13, p. 397.) 

 Tufts minute, sometimes more or less confluent, blue-grey, 



bypbae sparingly dicbotomously brancbed above ; conidia 



cylindrical, tips apiculate, arranged in brancbing cbains, 



1-septate, 14-17 X 4-5 yu,, almost colourless. 



Dendryphium griseum, B. & Br., Ann. Nat. Hist., n. 540 



t. vi. f. 11 ; Sacc, Syll,, iv. n. 2344. » 



On putrid nettle stems. 



