334: PVRENOCAKPEI [PORDTA 



mm. long, 0,003-5 mm . thick — Biatora leptalea Dur. <fc Mont. 

 Fl. d'Alg. i. p. 268 (1849). Verrucaria lecttssima i. leptalea Xyl. 

 in Maine & Loire Mem. Soc. Acad. iv. p. 38 (1858) ; subsp. 

 leptalea Cromb. Lich. Brit. p. 117; var. leptalea Leight. Lich Fl. 

 p. 443 ; ed. 3, p. 475. V. leptaleella Xyl. in Flora lix. p. 237 

 (1876) ; Cromb. in Grerillea v. p. 29 ; Leight. Lich. Fl. ed. 3, 

 p. 480 pro parte. 



Exsicc. Larb. Lich. Hb. without number. 



V. leptaleella was given specific rank by Xjlander on account of its 

 narrower spores; they resemble, when mature, those of P. leptalea. 



Hah. On trees. — Distr. Bare in S. England, Wales, and S. and W. 

 Ireland. — B. if. Near Crosshaven and Glenbower, Cork ; McCarthy's 

 Island, Dinish and Eagle's Xest, Killamey, Kerry ; Delphi, KOlery 

 Bay, Connemara, Galway. 



4. P. succina A. L. Sm. — ThaUus dark-brownish, thin, effuse. 

 Perithecia numerous, large, amber-coloured throughout, hemi- 

 spherical-conical with a papillate ostiole ; perithecial wall dimidiate, 

 spreading at the base ; paraphyses slender, distinct ; asci linear- 

 clavate ; spores 8 in the ascus, colourless, fusiform, 7-septate, 

 large, 0,046 nun. long, 0,005—8 mm. thick. — Verrucaria succina 

 Leight. in GreviUea iv. p. 78 (1875) it in Trans. Linn. Soc. 

 ser. 2, i. p. 145, t. 2, figs. 8-12 (1876) : Lich. Fl. ed. 3, p. 483 : 

 Cromb. in Joum. Bot. xiv. p. 363 (1876). V. globosa Tayl. ex 

 Xyl. in Flora Ixvi. p. 534 (1883); Cromb. in Grevillea xiL p. 91. 



Considered by Leighton to be closely allied to P. faginea, but its 

 aifinity is rather with P. lectisaima. from which it differs chiefly in 

 the larger perithecia and spores. 



Hah. On rocks. — Distr. Hare in S. and "W. Ireland. -B. M. Black- 

 water, Wexford. 



Perithecia dark-coloured ; spores Z-septate. 



5. P. carpinea A. Zahlbr. in Engler it Prantl Pflanzenf. i. 

 1*, p. 66 (1903). — ThaUus thin, developed within the bark, grey, 

 olive, or dark-brown, smooth or somewhat wrinkled, efiiise or 

 determinate. Perithecia small, black, shining, sessile and sub- 

 globose ; perithecial wall dimidiate ; paraphyses numerous, slender, 

 involved in mucus but distinct, not branched : asci elongate- 

 cylindrical or -clavate ; spores fusiform, 3-septate, colourless, 

 usually 0,016-20 mm. long, 0,004—6 mm. thick, sometimes longer 

 and slightly thicker. — Verrucaria carpinea Pers. ex Ach. Meth. 

 p. 120 (1803). r. fusifarmis Leight. Ajagioc. Lich. p. 42, t. 18, 

 fig. 2 (1851). V. chlorotica f. earpiTiea Cromb. Lich. Brit. p. 116 

 (1870); Leight. Lich. Fl. p. 445; ed. 3, p. 473. Arthopyrenia 

 maadaris va,T. ftisiformis Mudd Man. p. 301 (1861). 



Exsicc. Bohl. n. 82 (as Verrucaria olivacea) ; Leight. n. 99 ; 

 Mudd n. 289 ; CarroU Lich. ffib. n. 34. 



Similar to P. chlorotica in the form and contents of the perithecia, 

 but differiug in habitat and in the structure of the thallus. There 



