HYDNEI. 261 



On dead wood. Rare. CoUcywcston, Northamptonshire. 

 My plant is not on fir-wood, like that of Fries. 



19. H. spathulatum, Fr.; subiculum effused, membrana- 

 ceous, seceding, dirty-white, verging on yellow ; circumference 

 fimbriate; spines spathulate, oblique, orange. 



On decaying wood. Very rare. Apethorpe, Northampton- 

 shire. Spines, however, scarcely orange, yet agreeing with 

 authentic specimens from Schweinitz. Separable. 



20. H. udum, Fr. ; subiculum effused, thin, subgelatinous, 

 agglutinate, smooth, flesh-coloured, then wateiy-yellow; spines 

 crowded, unequal, forked and fimbriate, of the same colour. 

 (Plate 17, fig. 3.) 



On fallen branches. Not uncommon. So nearly allied to 

 H. membranacewn, that it is difficult to draw the line between 

 them. 



21. H. niveum, P.; white; subiculum effused, thin, mem- 

 branaceous, adnate ; circumference byssoid ; spines short, 

 crowded, equal, smooth. — Pers. Disp. t. 4. /. G, 7. 



On dead wood, leaves, etc. Rare. Bristol, C. E. B. 



22. H. farinacetun, P. ; white ; subiculum effused, inde- 

 terminate, crustaceous, mealy ; circumference slightly floccu- 

 lose ; spines slender, rather distant, very acute, quite entire. 



On decayed wood. Not uncommon. Varies a little in 

 tint. 



23. H. plumosum, 7)m% ; downy, snow-white; subiculum 

 very delicate ; spines divided, feathered at the apex. — Bot. 

 Gall. ii. 2^' 778. 



On dead Avood. Rare. Lambley, Nottinghamshire. 



27. SISTOTREMA, P. 

 Hymenium spread over gill-like teeth, irregularly distri- 

 buted, distinct from the pileus, and easily separable. 



