GRAPHIS] GRAPHIDACE^ 247 



1. G. elegans Ach. Syn. Lich. p. 85 (1814).— Thallus pale 

 cream-coloured or greyish-white, thin, membranaceous, granular 

 or wrinkled. Apothecia linear-elongate, simple, straight or 

 curved ; perithecial wall continuous or with a small opening 

 under the base ; proper margins thick, lonijitudinally furrowed ; 

 paraphyses slender, inspersed with small granules ; spores 

 cylindrical-fusiform, with a hyaline epispore, 10-12-septate, 

 0,035-55 mm. long, 0,008-11 mm. thick.— S. F. Gray Nat. 

 Arr. i. p. 503; Cromb. Lich. Brit. p. 96; Leight. Lich. Fl. 

 p. 362 ; ed. 3, p. 427. OpegrapJia elegans Borr. in Sm. Engl. 

 Bot. t. 1812 (1807) ; Hook, in Sm. Engl. Fl. v. p. 146. 0. sulcata 

 Moug. & Nestl. ex DC. Fl. Franc, vi. p. 171 (1815); Tayl. in 

 Mackay Fl. Hib. ii, p. 107. Aulacographa elegans Leight. in 

 Ann. Mag. Nat. Hist. ser. 2, xiii. p. 389, t. 7, f. 26 (1854); 

 Mudd Man. p. 262, t. 4, f. 93. 



Exsicc. Baxter Stirp. Crypt, n. 21; Bohl. n. 27; Leight. 

 n. 68; Mudd n. 223; Larb. Lich. Hb. n. 156; Carroll Lich. 

 Hib. without number. 



Characterized by the furrowed margin of the prominent apothecia, 

 though occasionally the furrows are not well developed. 



Hob. On trees, finest on holly. — Distr. General and common in 

 England and Ireland, somewhat rare in Scotland. — B. M. Withiel, 

 Cornwall ; Ivy Bridge, near Beckley, Becky Falls, near Exeter, and 

 Tavj^ Valley, Devon ; Lyndhurst, New Forest, Hants ; St. Leonard's 

 Forest, Henfield, Eridge Park, Ardingly and Peas Pottage Gate, near 

 Horsham, Sussex ; Bagley Woods, Berks ; Charnwood Forest, Leicester- 

 shire ; KjQole Park, Kent ; Woodham Walter Common, Hockley 

 and Hadleigh Woods, Essex ; Malvern, Worcestershire ; Dolgelly, 

 Merioneth ; Crafnant and Church Stretton, Shropshire ; Gloddaeth, 

 near Conway ; Capel Curig and Gwydir Woods, Bettws-y-Coed, Car- 

 narvonshire ; Chatsworth, Derbyshire ; Roche Abbey and Baysdale, 

 Cleveland, Yorkshire ; near Glasgow, Lanarkshire ; Ben Lomond, 

 Dumbartonshire ; Inverary and near Bonawe, Lome, Argyll ; Glen 

 Tilt, Perthshire ; Castle Bernard Park, Bandon, Brown's Demesne, near 

 Riverstown, and Ballyedmond, Cork; Tore Mt., Lough Inchiquin, 

 Dinish, and Croghan, Killarney, Kerry; Kylemore, Connemara, 

 Galway. 



Form parallela Leight. Lich. Fl. ed. 3, p. 427. — Apothecia 

 narrow, straight, rather long, arranged in a parallel manner. — 

 Opegrapha elegans var. parallela Schoer. Enum. p. 152 (1850). 



Hab. On the bark of cherry and other trees. — Distr. Somewhat 

 uncommon in S. and Central England, N. Scotland and Ireland. — 

 B. M. Ullacombe, Bovey Tracey, Devon ; New Forest, Hants ; Wych 

 Cross and High Rocks, Tunbridge Wells, Sussex ; Church Stretton, 

 Shropshire ; Cader Idris, Merioneth ; Trefriw, Carnarvonshire ; Glen 

 Tilt, Perthshire ; Glengarriff, Cork ; Doughruagh Mt., Kylemore, 

 Connemara, Galway ; Tullymore Park, Down. 



Form stellata Leight. I. c. — Apothecia rather short, arranged 

 in radiate stellate groups. 



Hah. On trees. — Distr. Rare in S. and Central England and 



