graphina] graphidace^e 255 



Hah. On trees. — Distr. Rare in the Channel Islands, S. England 

 and S. Ireland. — B. M. Guernsey ; Withiel and near Liskeard, 

 Cornwall ; Cury Park, near Lew Trenchard and Harpford, Devon ; 

 near Ilingwood and near Lyndhurst, New Forest, Hants ; Castle 

 Bernard Park, Bandon, Castlemartyr, Brown's Demesne, Riverstown, 

 Carrigaline, and near Crosshaven, Cork. 



93. GRAPHINA Muell.-Arg. in Flora Ixiii. p. 22 (1880). 

 Stenographa Mudd Man. p. 235. (PI. 30.) 



Thallus crustaceous, thin, superficial or developed under the 

 bark. Algal cells Trentepoldia. Apothecia {llrellse) elongate, 

 immersed in the thallus or superficial, simple or branched ; disc 

 narrow and slit-like ; proper margins tumid, prominent, furrowed 

 or simple ; hypothecium colourless or dark-coloured ; asci clavate 

 or elongate, usually 8-spored ; spores rather large, colourless, 

 muriform. 



Distinguished by the muriform colourless spores. As stated 

 already, the earlier Stenograjjha of Mudd, though practically a 

 synonym of Graphina, has been rejected in favour of the latter which 

 is founded on characters recognized as more truly of generic import- 

 ance, and which occupies a definite position in Mueller's scheme. 

 Phceographina Muell. Arg. with brown muriform spores is not 

 represented in Great Britain. 



1. Gr. anguina Muell.-Arg. in Flora Ixv. p. 385 (1882).— 

 Thallus effuse or determinate, whitish or pale-yellowish, thin, 

 membranaceous or thickish, tartareous, minutely warted and 

 wrinkled. Apothecia generally crowded, variable in size and 

 direction, simple or branched, straight or curved ; disc slit-like, 

 narrow, sometimes slightly dilated and tapering towards the 

 ends ; proper margins narrow or tumid, elevated, simple, closely 

 surrounded and often surmounted by the thallus ; hypothecium 

 colourless or pale-brownish, the apothecial wall developed at the 

 sides (dimidiate) ; paraphyses slender, somewhat conglutinate ; 

 epithecium dark-brown ; spores large, colourless, muriform, 

 0,030-75 mm. long, 0,015-20 mm. thick. — Ustalia angmna Mont. 

 in Ann. Sci. Nat. ser. 2, xviii. p. 278 (1842). Graphis scripta 

 Leight. in Ann. Mag. Nat. Hist. ser. 2, xiii. p. 264, t. 6, f. 17 (1854) 

 (non Ach.). G. anguina Nyl. in Act. Soc. Linn. Bord. ser. 3, i. 

 p. 395 (1856). G. sopliistica Nyl. ex Cromb. Lich. Brit. p. 96 

 (1870) (non Nyl. in Act. Soc. Sci. Fenn. vii. p. 465 (1863)); 

 Leight. Lich. Fl. p. 370 ; ed. 3, p. 434 (incl. f. diffusa). Steno- 

 grapha arigulna Mudd Man. p. 235 (1861) (incl. vars. diffusa 

 and divaricata). 



Exsicc. Bohl. n. 28 (as Opegrapha scripta); Mudd n. 216 (as 

 Stenographa anguina var. divaricata). 



The thallus varies from being thin and yellowish to a somewhat 

 thickish, light- coloured, finely-warted membrane. The apothecia 

 are emergent, more or less prominent and dark-coloured, the disc 

 being narrow and rarely slightly pruinose. The name sophistica 



