178 FUNGUS-FLORA. 



the dingy pale umber colour and subgelatinous consistency 

 when growing. 



Porothelium Priesii. Mont. 



Forming broadly effused, thin, inseparable white or pale 

 ochraceous patches of irregular form 13 in. across, flocculoso- 

 membranaceous ; margin thin, sterile, minutely fibrilloso- 

 radiate ; warts immersed, perforated at the apex, yellowish, 

 scattered, at length becoming open ; spores colourless, ellip- 

 tical, 5 X 3 fj.. 



Porothelium Friesii, Montagne, Ann. Sci. Nat. (1836), vol. v. 

 p. 339 ; Cke., Hdbk., n. 840, fig. 69. 



On bark and wood. Eesembling a thin Corticium, and care 

 must be taken not to confound the present species with thin 

 forms of Corticium lacunosum and C. porosum, both of which 

 are distinguished by the waxy, polished hyinenium. 



Porothelium confusum. B. & Br. (figs. 14, 15, p. 149.) 

 Broadly and irregularly effused, closely adnate and insepa- 

 rable, thin, pallid, waxy-looking and rather polished, margin 

 byssoid ; papillae scattered, distinct, very short, excavated at 

 the tip ; spores 4-5 X 1 * 5 //,. 



Porothelium confusum, B. & Br., Ann. Nat. Hist., ser. v., 

 vol. i. p. 24, no. 1685; Stev., Fung., p. 231. 



On wood, sticks, &c. Often vaguely and irregularly 

 effused, thin, dirty white, dingy pale buff when dry; pa- 

 pillae or pores not more than ^ line long. 



Porothelium Stevensoni. B. & Br. 



Substance rather thick, gelatinous, effused, closely adnate, 

 whitish, margin rather coarsely hispid, at length almost 

 smooth ; papillae distinct, scattered, bearing at the apex a 

 diaphanous yellow globule, interstices waxy, polished ; spores 

 4x 1'5 p.. 



Porothelium Stevensoni, B. & Br., Ann. Nat. Hist., n. 1683; 

 Stev., Brit. Fung., p. 231, fig. Ixxi. 



On old pine-rail. Almost white when fresh, becoming 

 yellowish when old. The limpid globule is at first pale. 

 When full grown the papilla is from four to five times as 

 long as the diameter of the globule. The mycelium imparts 

 a sweet scent to the wood. Found in greatest perfection 



