ACOTYLEDONS. FUNGI. MuCOV. 15 



15. ARCYRIA, 



Ver'iiUum with its upper part evanescent. Tiifi o^ Jilaments 

 naked, fixed into the cup-shaped receptacle. 



1. A.? leucocephala, gregarious, pcridium funnel-shaped orange 

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

 Germ. v. 2. /. ij. f. 1. Craterium leiicoccp/ialum, Sturfn's 

 Fungi, t. \{. 



Had. ()n moss upon the Pentland hills, Mr. GreviUe. 



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

 . convex extremity, on the disaj^pearance of which the whitish fila- 

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

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



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

 drooping. Pcrs. p. 1S4. Tricfiia mitayis, Soiv. t. 184. 



Hab. On mosses aliout Edinburgh. Autumn. Mr. Grcville. 



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

 datus, Linn. Trichia demtdata, Sow. t. 49. 



Hab. Decaying sticks, about Edinb., Mr. GreviUe. 



16. STEMONITIS. 

 Peridium very thin, subevanescent. Tuft of Jilaments forming 



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



central style. 

 1. a. fasciculate!, tufted head of filaments subattenuated, the 



outer coat entirely evanescent. Pers. p. 187. Clathrus nu- 



duSj Linn. Trichia nuda, Soio. t. 188. 



B. Gymnosfermi. Seminal dust without filamenls. 



17. LICEA. 



Peridium free, roundish orslightly spreading, fragile, without any 

 subjacent membrane. Seminal dust destitute of filaments. 



1. L. circuyyiscissa, gregarious fulvous, peridium bursting all 

 round transversely. Pers. p. 196. Ejusd. Ohs.Myc. l.t.Q.fX, 

 and 2. Sphcerocarpus sessilis, Bzdl. Champ, t. 417. f. 5. 



Hab. On the dead bark of trees about Edinburgh. Autumn, Mr. 

 GreviUe. 



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 JiUiments 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. iVittceJo, stipes simple, peridium inflated blackish grey, 

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



