SPH.EROPHORON. 



287 



slightly more elongated and narrow than those of L. pyg~ 



Section II. ANGIOCABPL 



In the species belonging to this section the apothecium 

 is closed and globose, perforated by a pore or irregularly de- 

 hiscing, sessile or innate, having a thalline or proper exciple 

 (perithecium), and a nucleiform thalamium, which is fre- 

 quently pale-coloured or whitish, and waxy or gelatinous. 



Nat. Ord. XIII. SPHjEROPHOBACE^ Fries. 



Fam. Char. Thallus vertical, shrubby. Apothecia terminal. 

 Exciple formed of dilated extremity of thalline ramules, closed, 

 at length irregularly lacerate-dehiscent. Thalamium subglobose, 

 cleaving or separating with the thecae. (Name from crfyaipa and 

 <£opos, in allusion to their bearing a spherical fructification.) 



Genus I. SPH^ROPHORON, Ach. 



Gen. Char. Thallus having a crustaceous-cartilaginous cortical 



* Montague, Memoir on Lichina, in Annales des Sc. Nat., 2nd series, 1841, 

 and in the ' Hist. Nat. des Canaries ' of Mr. Webb, 1840 : Fee, on Lichina 

 and Paulia, ' Limisea/ vol. x., 1836 : Flotow, on Lichina, ' Linnsea/ vol. 

 viii. : Decaisne, on Lichina, Bull, de l'Acad. Roy. des Sc. et Bell. Lettr. de 

 Bruxelles, vol. vii. 1840. 



