ACOTYLEDONS. FUNGI. PiloholuS. 9 



Hab. On the dead leaves of Vhms sylcestris, about Edinb. Sept. 

 Mr. GrevUle. 



3. XYLOMA. 

 Receptacle {peril hecium) various in form, liarfl, subcaniose 

 within, remaining closed or opening in various ways. 

 * Mamj Perithecia united into one body (Majora). 



1. X. salicinum, thick tuberculose, white and cartilaginous at 

 the base within. Pers. p. 103. Ejusd. Disp. Melh. Fujig. 

 p. 5. /. 2. f. 4. Xijloma leucocreas, Decand. FL Gall. p. 63. 



Hab. On the upper surface of the leaves of Sallx caprcea, at Castle 

 Campbell. Sept. Mr. Grei-ille. 



2. X. acerinum, maculiform thin contiguous subrugose. Pcrs. 

 p. 104. 



Hab. On the leaves of Acer pseiido-Platanus, abundant in the autumn, 

 Mr. Greville. 



3. X. ruhrum, crowded orbicular somewhat confluent orange 

 red. Pers.p.\05. Polystigmarulrum, Pers.inUlt. Moug. 

 et Nestl. n. 270. 



Hab. On the leaves of Primus spinosa, Auchindenny woods. Autumn. 



Mr. Greville. 

 ** Simple. Perithecia solitary, scattered, for the most part rounded, 

 pezizceform or pitnctiform (Minora). 



4. X. aZ^iCMW, minute scattered roundish plicate. Pen', p. 108. 

 Hab. On fallen leaves of Alnus glutinosa, about Edinb. September. 



Mr. Greville. 



4. TUBERCULARIA. 



Receptacle somewhat hemisphaerical, sessile. Tubercle filled 

 with a thick, frequently red, fluid. 



1. T. vulgaris, gregarious red sulcato-rugose, receptacle stipiti- 

 form thick pale. Pers. p. l\2. Sphceria tremelloides, Hopk. 

 Glott.p. 164. Tremella purpurea, Light/, p. 901 . Clavaria 

 coccinea, Sow. t. 294. 



Hab. On decaying sticks in the autumn. Common upon those of 

 Rihes ruhrvm, Hopk.; Mr. Greville. 



2. T, coTifluens, gregarious confluent flesh-coloured red, tuber- 

 cles small roundish oblong and angular somewhat flat. Pers. 

 p. 113. 



Hab. Dead stems about Edinb. Autumn. Mr. Greville. 



Very near T. vulgaris, but smaller and depressed,, paler colour. 



Sect. II. Sarcocarpi. Fiuigi fleshy, solid, 



5. PILOBOLUS, 



Receptacle stipitiform, pellucid and watery, upon which is fixed 

 a naked vesicle, bursting open with an elastic force. 



1. P. cryslallinus, receptacle inflated upwards, vesicle hemi- 

 sphaerical black. Pers. p. 117. MucorurceolaiuSf Soiv. t, 300. 



