166 FUNGUS-FLORA. 



patches. Sometimes pale dingy yellow. The margin is 

 either sterile or covered with spines. Colour sometimes 

 pale yellowish or very pale buff. 



CALDESIELLA. Sacc. (fig. 3, p. 149.) 



Spines minute, conical or ampulliform, springing from a 

 membranaceous, persistent villose subiculum ; spores globose, 

 muriculate, copious. 



Caldesiella, Saccardo, Mich. i. p. 7 ; Sacc., Syll. vi. p. 477. 



Distinguished from Hydnum by the muricate spores being- 

 very copious, and by the loose texture of the subiculum. 



Kesembles the teeth of a Hydnum in the subiculum of 

 Eypochnus or Coniophora. I have had no opportunity of 

 examining the species included in the present genus in a 

 fresh state, hence cannot say definitely whether the fungus 

 is a true Basidiomycete or not, that is, whether the spores 

 are borne on true basidia, or singly at the tips of unthickened 

 branches, as in the family Hyphomycetes. The profusion of 

 spores points to the latter ; this, however, must be settled by 

 some one examining fresh material. 



Caldesiella ferruginosa. Sacc. (fig. 3, p. 149.) 



Subiculum effused, often for several inches, tawny-ferru- 

 ginous, tomentose ; spines crowded, conico-subulate, acute, 

 coloured like the subiculum, straight or oblique and com- 

 pressed ; spores globose, 8-9 /x. diameter, distinctly muriculate, 

 dingy olive. 



Caldesiella ferruginosa, Sacc., Mich. ii. p. 303. 



Hydnum ferruginosum, Fries, Syst. Myc. i., p. 416; Stev., 

 Fung., p. 242. 



On decaying wood, especially under the bark ; rarely on 

 the ground. Separable from the matrix. 



The whole plant consists of densely-woven down, forming 

 an effused indeterminate mass, the hymenium composed of 

 erect or oblique spines, which are villous and often abortive, 

 so as easily to be taken for some species of the sub-order 

 Hyphomycetes. The colour varies from ferruginous to 

 brownish. (Berk.) 



