472 rUNGUS-FLOEA. 



CYLINDPiOCOLLA. Bon. (fig. 25, p. 442.) 



Sporodochium siibtreinelloid, wart-like, irregular, brightly 

 coloured ; conidia terminal on the tips of repeatedly forked 

 conidiophores, concatenate, rod-shaped, truncate at both 

 ends. 



Cylindrocolla, Bonorden, Hdbk., p. 149 ; Sacc, Syll., iv. 

 p. 673. 



Characterised by the repeatedly dichotomising conidio- 

 phores and the concatenate cylindrical truncate conidia. 



Cylindrocolla urticae. Bon. (fig. 25, p. 442.) 

 Gregarious, irregularly circular, becoming collapsed in 

 the centre, bright orange-red ; conidiophores repeatedly 

 forked, elongated ; conidia terminal on the branchlets, 

 cylindrical, 8-12 X 1*5 /a, continuous, hyaline. 



Cylindrocolla urticae, Bon., Hdbk., p. 149 ; Sacc, Syll., iv. 

 n. 3190. 



On dead nettle stems. Forming bright orange-red, sub- 

 gelatinous, minute patches. Said to be the conidial con- 

 dition of Calloria fusarioides. 



PEEIOLA. Fries, (fig. 17, p. 442.) 



Sporodochium free, superficial, rounded, variable, sur- 

 rounded by the cortex ; stroma cellular, fleshy or somewhat 

 gelatinous ; conidia globoso-ovoid, hyaline, continuous, in 

 peripheral chains mixed with bristles. 



Periola, Fries, Syst. Myc, ii. p. 266 ; Sacc, Syll., iv. 

 p. 681. 



Allied to Volutella, but differing in the peripheral chains 

 •of conidia. 



Periola tomentosa. Fries, (fig. 17, p. 442.) 

 Rounded, deformed, tomentose, white, scattered or con- 

 glomerated, often confluent, base adnate, 4-6 mm. across, 

 somewhat fleshy, pallid inside, firm ; conidia obovate, 

 minute, 5 X 3 /x, hyaline, (catenulate ?), borne on densely 

 -crowded, rod-shaped basidia. 



