OF GREAT BRITAIN. 325 



" Spores .012 — 13 mm. long, .007 — 8 mm. broad. Sporea .010—18 mm. long, 

 .007—9 mm. broad." (Nyl.) " Spores .003 to .0035 in. long, .00125 to .00175 

 in. broad." (Mudd.) Spores .013 mm. long, .005—6 mm. broad. 



220. L. alocizoides, Leight. cinereo-albescent, tartareo-pulveru- 

 lent, almost evanescent, (K — C — ) ; apothecia scattered, at first 

 punctiform, immersed, then emerso-adnate, plane, fuscous-black, 

 when moistened paler badio-fuscous, margin paler ; hypothecium 

 colourless ; spores 8, fuscous, rotundo-oblong, 1-septate. 



On calcareous rocks ; 1851. 



Syn :— L. alociza, Leight. Lioh. Fl. 2d. ed. 310. 



Exs :— Arn. 263. 264. 



Geog. Distrib : — Italy, Bavaria. 



Bot. Pbov:— 1...5...7...20. 



England : — Buxton ! Derbyshire. Dr. Boll. Torquay ! Dr. Deakm. Weston- 

 super-mare ! Mr. Joshua. Llanymynech Hill ! 



Ireland : — Carigaloe, Goat Island ! Mr. Carroll. 



Wales: — Eglwyseg rooks ! Craig Breidden ! Diganwy near Conway ! (1851.) 

 Llandudno ! 



Not L. alociza, Mass. Synm. 42. which is there described as having 

 "diaphanous" or colourless spores. Paraphyses distinct, apices dark-brown. 

 Spores .015 — .016 mm. long, .008 — 9 mm. broad. Epispore narrow. 



221. L. leucoclinella, Nyl. white, cream-coloured or cinereous, 

 tartareous, difracto-areolato-verrucose, (K yellow G red) ; apothecia 

 appressed to the areolce, or subinnato-sessile, black, plane, sub- 

 immarginate ; hypothecium colourless ; spores 8, fuscous, oblong, 

 1-septate. 



On quartzose and schistose rocks, not common. 



Syn: -Nyl. in litt. 1870. 



Exs :— Leight. 217 (in part). 



Geog. Distbib : — Italy, Germany. 



Bot. Pbov:— 2.. .5.. .7.. .26. 



England:— Shanklin! Isle of Wight. Mev. T. Salwey. Lyth Hill! Caer 

 Caradoc ! Shropshire. 



Ireland :— Clifden ! Connemara. Mr. Larbalestier. 



Wales : — Diganwy ! near Conway. 



Spores often nucleolate, epispore distinct, .013— .0145 mm. long, .008 — 9 mm. 

 broad. 



222. L. occulta, (Korb,) pallido-lutescent, effuse, adnate, thin, 

 minutely areolate, areolce somewhat convex or ruguloso-glebulose ; 

 hypothallus dark ; apothecia nigro-fuscous, very minute, adnate, 

 at first margined by the thallus, eventually free and somewhat 

 convex, proper margin more or less visible ; epithecium fuscous ; 

 hypothecium lutescent ; paraphyses indistinct; spores 8,. fuscous, 

 small, oblong, l-septate ; thallus tinged yellow with K and on 

 immediate subsequent application of C still yellow, but soon 

 obliterated (K y C— ). 



On rocks, sparingly. 1872. 



Syn :— Korb. Par. 186. (1865.) Leight. in Grevillea 1. p. 58. (1872.) 



Fig :— Grevillea t. 4. f. 6. 



Exs : — Leight. 217. (in part). 



Geog. Distrib : — Germany, Switzerland. 



Bot. Prov:— 5. ..7. 



England : — Lyth Hill ! Shropshire. 



Wales : — Diganwy near Conway ! Bettws-y-coed ! (1872.) Moel-y-gest ! 



Spores .015— .0155 mm. long, .0975 — .008 mm. broad. 



223. L, ducolor, (Hepp.) pale-cineno-brownish, thin, tar- 



