LECANORA.] LFCAXO-LECIDEF.I. 451 



ever, it is at onco distinprnished by tlie colour intornally of tlio apotliocia 

 and by that of the paraphyses. The thalliis varies somewhat in thick- 

 ness and is often widely exjiauded. The apothecia are ^renerally nume- 

 rous and somewhat crowded. The spermofrones also are frequent, with 

 spermatia long, slender, somewhat straight, 0,016-20 mm. long. 



Hab. On roots, walls, and the trunks of trees from maritime to sub- 

 alpine regions. — Didr. General and common in Great Britain, as no 

 doubt also in Ireland. Apparently rare in the Channel Islands. — B. M. : 

 Island of Sark. Near Yarmouth, Suflblk ; Ifeigate Hill, Surrey ; Lydd 

 Beach, Kent ; New Forest, Hants ; Ilshani Walk, Torquay, Devonshire ; 

 St. Minver, Cornwall ; Cirencester, Gloucestershire ; Cheveley Park and 

 near Newmarket, Cambridgeshire; Worcester and Malvern Hills, Wor- 

 cestershire ; Woodlield, Monmouthshire ; Dolgelly, Merioneth ; Island 

 of Anglesea ; Oswestry, Shropshire ; Staveley Head, Westmoreland ; 

 St. Bees .and Alston, Cumberland. Near Glasgow; Barcaldine and Appin, 

 Argyleshire ; West Water, Fifeshire : Loch Tay, Craig TuUoch, Ijen 

 Lawers, and Kinuoul Hill, Perthshire ; Portlethen, Kincardineshire ; 

 Hill of Ai'do, near Aberdeen. Near Cork ; Killaloe, co. Clare ; Dawros, 

 Connemara, co. Galway. 



Var. /3. gTumosa Ach. Lich. Univ. (1810) p. 344. — Thallus 

 riraoso-granulate, caesio-grevish, leproso-fatisceut. Apothecia de- 

 pressed, subrimate. — Lichen rjrumosus, Pers. iu Ust. Ann. xi. (1794) 

 p. 15. 



Differs in the characters given of the thallus (which is usually thickish) 

 and of the apothecia. It is probably connected with the t\-pe by inter- 

 mediate states. 



Hah. On rocks and walls in (?) maritime and upland districts. — DUtr. 

 Only from two localities in S. Wales and N.W. England, though I believe 

 I have seen it also iu N.E. Scotland (near Cove, Kincardineshire). — B. M. 

 Woodiield, Monmouthshire ; Brougham Castle, Westmoreland. 



? Var. y. snbbyssoidea Stirt. Trans. Glasg. Soc. Nat. 1875. p. 85. 

 — Thallus granulose, greyish-black or nearly black, effigurate at 

 the circumference ; hvpothallus white, subbyssoid. — Leight. Lich. 

 FL ed. 3, p. 178. 



Doubtfully referable to this species, as I have indicated in Grevillea, 

 xviii. p. 70. It is at once separated by the colour of the hvpothallus, and 

 is most probably referable to L. ganyaleoides. I have, however, seen no 

 specimen. 



Kab. On rocks in an upland situation. — Distr. Oidy among the Central 

 Grampians, Scotland (Blair Athole, Perthshire). 



H. Apothecia lecanorine ; spores Snae, simple, colourless : hymenial 

 gelatine bluish with iodine. Spermogones with jointed sterig- 

 mata and bacillar spermatia. 



145. L. "badia Ach. Lich. Univ. (1810) p. 407.— Thallus inde- 

 terminate, granulato-areolate or subsquamulose, olive-brown or 

 dark-grevish-browu, somewhat shining (K — , CaCl — ) ; hvpothallus 



2g2 



