318 FUNGI. {Arajria. 



veinlike reticulations. — Name, di/trvo'J, a jiet, and sido;^ resem- 

 blance. 



1. D. timbiUcdtum, Sclirad. {umhilicate Didydiuni) ; peridiiini 

 cernuous umbilicate above, veins parallel joined by others which 

 are transverse, sporidia brown-purple. Schrad. Nov, Gen. t. 4. 

 f. 1. Fr. Si/st. Myc. v. 3. p. 165.—/). cernuum, Nees, /. 117. 

 Grev. Sc. Crypt. Fl. t. 153. — Mucor cancellatus, Batsch, ConU 

 2. /. 232. — Trichia recutita, With, v. 4. p. 367 (excluding the 

 syn. of Linn?) 



On rotten wood. Appin. Captain Carmichael. Edinburgh. Dr. 

 Greville. Bucks. Mr. Knapp. — One of the most elegant plants of 

 the present tribe, resembling a little balloon of network. 



91. Cribraria. Schrad. Cribraria. 



Pmtfmm membranaceous, the upper part falling off; capilli- 

 tlum innate, at length forming a network above. — Name, cri- 

 hrum, a sieve, 



1. C. intermedia. Berk. (^Mr. Sowerhys Cribraria) ; peridiuni 

 globose yellow, excipulum entire, stem pellucid white tapering 

 upwards, sporidia yellow. — Sphcerocarpus semitrichioides, Sow, 

 t. 400./. 5. 



On rotten wood. Kensington Gardens. — Intermediate between C. 

 vulgaris and C. aurantiaca. 



92. Arcyria. Hill. Arcyria. 



Peridium splitting all round at the base, the upper part very 

 fugacious. Capillitiwn dense, interwoven, elastic. — Name, 

 a^Kvc, a net. 



1. A. jjunicea, Pers. (^splendid Arcyria); peridia crowded 

 stipitatesubovate,capillitium elongated, sporidia bright purplish- 

 vermilion. Pers. Syn. p. 185. Grev. Fl. Ed. p. 455. Scot. 

 Crypt. Fl. t. 130. Fr. Syst. Myc. v. 3. p. 1 77. — Trichia cinna- 

 baris, Bull. t. 502. f. l.— T. denudata, With. v. 4. jj. 365. Sow. 

 t. 49. Purt. v.2S)'3.9U 1111. t. 24./. 2.^Clathrus denudatus, 

 Linn. Sp. PI. 1649. Bolt. t. 93./ 2. 



On rotten stumps. Extremely common. 



2. A. incarndta, Pers. (flesh-coloured Arcyria) ; peridia 

 crowded substipitate ovate, capillitium elongated effuse flesh- 

 coloured as well as the sporidia, Pers. Obs. 1. t. 5. / 4, 5. 

 Ditm. in St. Deutsch, Fl. t. 44. Fr. Syst. Myc. v. 3. p. 178. 



On rotten wood. Not uncommon. — Smaller than the foregoing and 

 more shortly stipitate. In the former the peridium is venose, in the 

 present species veinless. The var. yS. jiexuosa appears to have been 

 found by Capt. Carmichael^ but the specimens so marked are quite 

 decayed. 



3. A. cinerea, Bull, (cinereous Arcyria) ; gregarious, peridia 

 stipitate globoso-ovate cinereous, capillitium ovato-cylindric 



