32* ADDENDA ET CORRIGENDA. 



Phallus caninus, }). 227, add this habitat, 



Wood behind the manse of Stevenston, Ayrshire. Rev. D, Lans- 

 borough. — A very interesting addition to the Scottish Flora. 



45. ** Rhizoctonia. Dec. Rhizoctonia, p. 226. 

 Irregular, clothed with an inseparable very thin membranaceous bark, 

 joined by root-like fibres. 



1.^. Crocorum, Dec. (Crocus-blight) ; rufous, fibres few expanded 

 into a disc on the bulbs. Dec. Mem. Mus. v. 2. p. 216. Fr. Syst. 

 Myc. 2. p. 265. Loud. Hort. Brit. p. 461. — Sclerotium Crocorum, 

 Pers. Syn. p. 119. — Tuber parasiticum, Bull. t. 456. — Thanato- 

 phytum Crocorum, Nees, f. 135. 



On the roots of Saffron. Introduced on the authority of Loudon's 

 Hortus Britannicus. — Bulliard describes the flesh as composed of 

 little imbricated scales ; Chevallier as containing small rounded slightly 

 compressed sporangia ; his figure accords exactly with that of Bulliard. 

 The genera Arnphisporium and Dichospoi'ium, though included in 

 Loudon's list, are omitted, as their affinities and nature are altogether 

 uncertain. 



At/?. 289. Asteroma Cratdgi, Berk, (Service Asteromd) ; epiphyl- 

 lous, spots brown, fibres radiating from the centre, branched distinct 

 whitish, at length black from the very minute connate nodular peri- 

 thecia. — Actinonema Cratcegi, Pers. Myc. Eur. 1. p. 52. Fr. El. 2. p. 

 151. Moug. 6r Nest..' n. 864. 



On living leaves of Cratcegus torminalis. August. Fineshade, 

 Norths. Rev. M. J. Berkeley. — Barren when hypopliyllous. A most 

 elegant plant in the perfect state, and I believe a true Asteroma. 



