DIPLOSrOKIUM — TEICHOTHKCIUM. 337 



Tn'cotJiccium, Link, sp. pi. Fimi;i, i. p. 28; Sacc, Syll., iv. 

 p. 178. 



TrichotheciL-m roseum. Link. (fii:;. 14, p. 274.) 



Tufts minutely velvety, rather laro;e, often becominjr 

 confluent, at fitst white then pale rose-coloured; fertile 

 hv]»hae erect, short, without septa ; conidia pyriform, slightly 

 constricted at the septum, attached obliquely to the narrow- 

 apex of the conidiophore, 12-18 x 8-12 /x, pale rose or almost 

 colourless. 



TricJiothecium roseum, Link, Ohs. Mycol., i. p. 10, f. 27; 

 Sacc, Syll., iv. n. 88 L 



Dactyliuhi roseum, Berk. 



On bark, leaves, fruit, paper, cheese, dung, <tc. 



Trichothecium candidum. Wallr. 



Tufts roundish, often confluent, minutely velvety, white ; 

 fertile hyphae erect, septate, 150 x 3 /x; conidia solitary-, 

 elliptic-oblong, apiculate at the base, two-celled, slightly 

 con>tricted at the septum, colourless, 20-25 X 10-15 /jl. 



Trichothecium candidum, Wallr., Fl. Crypt., n. 1879 ; Sacc, 

 Syll., n. 883. 



On bark and decaying vegetable substances. 



Care must be taken not to mistake bleached states of T. 

 roseum for the present species. 



Trichothecium obovatum. Sacc. 



White, forming exceedingly minute tufts; fertile hyphae 

 very slender, without septa; conidia colourless, obovate, 

 two-celled, not constricted at the septum, solitary or in pairs 

 at the tips of the conidiophores, 14-17 X 10 /x. 



Trichothecium ohovatum, Sacc, Syll., n. 884. 



Bactijlium ohovatum. Berk., Ann. Nat. Hist., n. 242, t. 14. 

 f. 2G. 



On willow branches, springing from the exolete jDcrithecia 

 of a Sphaeria. 



Trichothecium piriferum. Sacc. 

 Tufts, minute, white, often becoming confluent and 

 forming effused, minutely velvety patches ; fertile hyphae 

 aggregate, sparingly branched above ; conidia obovate, two- 

 celled, terminal cell largest, not constricted at the septum, 

 colourless, 20-25 x 10-12 /x. 



VOL. III. z 



