ACOTYLEDONS. FUNGI. MuCOT. 13 



15. ARCYRIA. 



Peridium with its upper part evanescent. Tuft of Ji 'laments 

 naked, fixed into the cup-shaped receptacle. 



\. A.? leucocephala, gregarious, peridiurn funnel-shaped orange 

 brown, tuft of filaments globose. Pers. p. 183. Hoffm. 

 Germ. v. 2. /. 6. f. 1. Craterium leucocephalum, Sturm's 

 Fungi, t.\\. 



HAD. On moss upon the Pentland hills, Mr. Greville. 



A very elegant minute species, funnel-shaped, with a pale evanescent 

 convex extremity, on the disappearance of which the whitish fila- 

 ments protruded in a more or less globular form. Nearly allied to 

 this is the Cyatlms minutus, Sow. t. 239. 



2. A. flava, subgregarious yellow, tuft of filaments very long 

 drooping. Pers. p. 1S4. Trichia nut cms, Sow. t. 184. 



HAB. On mosses about Edinburgh. Autumn. Mr. Greville. 



3. A. fiunicea, crowded red. Pers. p. 185. Clathrus denu- 

 datus, Linn. Trichia denudata, Sow. I. 49. 



HAB. Decaying sticks, about Edinb., Mr. Greville. 



16. STEMONITIS. 

 Peridium, very thin, subevanescent. Tuft of Jllamenls forming 



a net-work, somewhat compact, surrounding, and fixed to, a 



central style. 

 1. S. Jasciculata, tufted head of filaments subattenuated, the 



outer coat entirely evanescent. Pei'S.p.lSJ. Clathrns nu- 



dus, Lin?i. Trichia nuda, Soiv. t. 188. 



B. GYMNOSPERMI. Seminal dusl without filaments. 



17. LICEA. 



Peridium free, roundish orslightly spreading, fragile, without any 

 subjacent membrane. Seminal dust destitute of filaments. 



1. L. circumscissa, gregarious fulvous, peridiurn bursting all 

 round transversely. Pers. p. 196. Ejusd. Ols. Myc. 1. 1. G.^/.l. 

 and 2. Splicerocarpus sessilis, Bull. Champ, t. 417. } 5. 



HAB. On the dead bark of trees about Edinburgh. Autumn. Mr. 

 Greville. 



At first sight resembling the eggs of some insect. Peridium minute, 

 globose, of a dirty yellow, at length fulvous and separating hori- 

 zontally into two equal parts. Dust quite naked, or with one or 

 two minute filaments intermixed. Pers. 



18. MUCOR. 



Peridium membranaceous, globose, stipitate, at first pellucid 

 and watery, afterwards becoming opaque. Sporules naked, 

 somewhat cohering. (Minute fugacious Fungi.) 



1. M. Mucedo, stipes simple, peridium inflated blackish grey, 

 orifice roundish opening around the stipes. Pers. p. 201. 



