214 GRAPHIDEI [aKTHONIA 



Exsicc. Cromb. n. 196 ; Larb. Lich. Hb. nos. 154, 277 (as 

 A. suhexcedens). 



Rah. On hoUj.—Disir. Bare in S. England and in S. and W. 

 Ireland.— B. M. WitHel, Cornwall ; lyybridge, Devon ; Xew Forest, 

 Hants; Bridge Park, Essex; St. Leonard's Forest, Snssex; Glen- 

 bower Wood, Cork ; near DerrycnrrLhy, Cromaglown, Croghan and 

 Tore Mt., KiUamey, Kerry; BaUynahinch, Lough Inagh and Kyle- 

 more, Connemara, Galway. 



Spores 3-5-septate, cells equal in size. 



16. A. cascarillffi Leight. Lich. H. p. 394 (1871) ; ed. 3, 

 p. 418. — Thallus paUid-glaucous, thin. Apothecia blackish, 

 minute, simple, plane, oblong, or linear-oblong or irregularly 

 difform by confluence ; spores elongate, colourless, 4—5 septate. — 

 Ckmiocarpon eascarillse Fee Ess. Crypt, p. 99, t. 15, f. 4 (1824) 

 & Suppl. p. 94, t. 42, f. 3 (1837). Specimen not seen. 



Hob. On bark. — Distr. Keported from Glencar, Kerry and Kyle- 

 more, Connemara, Galway, though Leighton (U. c.) questions the 

 identity of these plants. Those he examined had spores 3-septate, 

 with a large upper cell ; while Fee's figure represents 4-septate spores, 

 the cells equal in size. 



17. A. piuinata Steudel Xomencl.Bot.p. 267 (1824). — ThaUus 

 broadly effused, tartareous, thin whitish or pale-yellow, cracked and 

 uneven, somewhat pulverulent (K-|- yellow, CaCl-|- rose-coloured). 

 Apothecia brownish or lead-coloured, appressed, irregularly 

 roundish or oblong, plane or slightly convex, rough, white-pruinose; 

 spores linear-obovate, colourless, usually 4-, rarely 3- or 5-septate, 

 the cells equal in size, 0,014-20 mm. long, 0,006-8 mm. thick ; 

 hymenial gelatine blue then wine-red with iodine. — A. pruinosa 

 Ach. lich. Univ. p. 147, t. 1, f. 3 (1810) ; S. F. Gray Xat. Air. L 

 p. 480 ; Cromb. Lich. Brit. p. 103 ; Leight. Lich. Fl. p. 400 ; ed. 3. 

 p. 424. A. impolita Borr. in Engl. Bot. Suppl. t. 2692, f. 1 

 (1831) ; Hook, in Sm. Engl. Fl. v. p. 143 ; Tayl. in Mackay Fl. 

 Hib. ii. p. 104 ; Leight. iu Ann. Mag. Nat. Hist. ser. 2, xiii. 

 p. 440, t. 8, f. 35 (1854); Mudd Man. p. 248. Patellaria 

 pruinata Pers. in Ust. Ann. Bot. vii. p. 28 (1794). Yerrucaria 

 impolita Hoffln. Deutschl. Fl. ii. p. 172 (1795). Lichen impoliitts 

 Ehrh. Ciypt. n. 274 (1793) nomen ; Sm. Engl. Bot. t. 981, f. 1 

 (1802). 



Exsicc. Leight. n. 131 ; Larb. Lich. Hb. n. 114. 



Hah. On old oaks, ivy, ehn, yew and old timber. — Distr. Frequent 

 in England, recorded also from Wales and Lreland. — B. M. Castle 

 Homock, Penzance, Cornwall ; Lustleigh, Devon ; Lyndhmst, New 

 Forest ; Shiere, Surrey ; Hurstpierpoint, Sussex ; Ulting, Essex ; 

 near Oaksey, WUts ; Twyeross, Leicestershire ; Hay Wood, Hereford- 

 shire ; Ballenhall, Worcestershire ; Llanrwst, Denbighshire ; Oswestry, 

 Shropshire ; Ickworth Park, Suffolk ; Kildare, Cleveland, Yorkshire ; 

 Bishop Auckland, Durham ; Tralee, Kerry ; Adare, Limerick. 



