OF GREAT BRITAIN. 



413 



England : — Airyholme Wood, Cleveland. Mr. Mudd. Mouth of Tamar, 

 Devonport ! East Lyn, Kent. Mr. Holmes. 



Ireland : — Kerry ! Dr. Taylor, co. Antrim. Dr. Moore. 



Channel Islands :— La Coupe ; Eozel Valley ! Jersey. Mr. Larbalestier. 



" Spores .005 in. long, by .0015 in. broad at apex and by .00075 in. at base, 

 t, 4. f. 100." (Mudd.)' Spores .02— .025 mm. long, .005 mm. broad. 



8. St. dendriticum, Leight. whitish or cream-coloured, thiD, tar- 

 tareous, smooth, effuse, (K yellow yellow) ; apothecia lirellce-form, 

 black, innate, irregularly and variously branched in a dendritic or 

 radiate manner, plane, naked, immarginate, internally pale ; 

 spores 8, colourless, narrowly obovate or clavate, 3 or ^-septate, upper 

 cell larger. 



On micaceo-schistose rocks, rare. 1875. 



Stn :— Leighton in Journ. Bot. Sept. 1875. 



Pig :— Journ. Bot. 1. c. tab. 166. 



Bot. Pkov :— 26. 



Ireland :— Near Rinvyle ! and on the Doughruagh Mountain (alt. 1800 ft.) 

 Kylemore ! Salrock ! co. Galway. Maam ! Joyce country. Mr. Larbalestier. 

 (1875.) 



Thallus sometimes slightly rimulose, consisting internally of innumerable 

 colourless very minute, rounded granular bodies amid which are round or 

 oblong nueleolate gonidia. Paraphyses flocculose, closely packed and en- 

 tangled. The septa confined to the lower portion of the spore. Medulla white 

 I yellowish. Gelatina hymenea I — . Analagous to St. circumscriptum (TayL) 

 just as St. venosum (Ach.) is to St. crassum, Dub. Spores .019 — .022 mm. long, 

 .006 — .007 mm. broad. 



4. St. Hutchinsice, Leight. dull-pale-yellow, thin, crustaceous, 

 nigro-limitate, continuous, minutely rimulose; apothecia lirellceform, 

 dark-brown, each innate in an elevated ihalline verruca which forms a 

 spurious narrow paler margin, variable, round and minute, oblong, 

 linear, more or less branched, straight or curved and flexuose, plane, 

 dilated, immarginate ; excipulum lateral, brown ; spores 8, colour- 

 less, fusiform, 5-7-or pluri-septate. 



On shaded rocks, not common. 1853. 



Stn : — Nyl. Enum. 132. (1858.) Mudd Man. 243. Ploi.ygram.ma Hutchinsia, 

 Leight. Br. Graph. 49. (1854.) 



Fig :— Leight. Br. Graph, t. 7. f. 28. 



Exs :— Leight. 130. Mudd 225. 226. Zw. 392. B. Am. 293. 



Geog. Distrib :— Europe, Germany. 



Bot. Prov :— 1...7...10...12...19...26...31. 



England :— Keswick ! Cumberland. Herb. Borrer. Newton rocks ; Pinching- 

 thorp Wood ! Airyholme Wood ; Beech Bank, Kildale ! Cleveland. Mr. Mudd. 

 Whitesand, Cornwall. Rev. J. M. Crombie. near Derwentwater ! Mrs. Stanger. 

 Ayton! Yorkshire. Mr. Baker, near St. German's, Cornwall. Dr. Holl. Ply- 

 mouth. Mr. Holmes. 



Ireland : — Near Bantry ! Miss Hutchins. Carte Mountain, Kerry. Dr. 

 Taylor. Blaekwater Bridge, Kerry. Adm. Jones. Dunscombe's Wood, Cork; 

 Dinis Island (and also f. cortieole), Muckruss Demesne ; Island in Upper Lake, 

 Killarney. Mr. Carroll. Dawros River ! co. Galway. Mr. Larbalestier. 



Wales : — Edderton Wood ! Montgomeryshire ; Bettws-y-coed ! Conway 

 falls ! Moel-y-gest ! 



Channel Islands :— St. Peter's Valley ; Gargate Mill Valley ! Jersey. Mr. 

 Larbalestier. 



"Spores .006 to .007 in. long, by .001 in. broad, t. 4. f. 94." (Mudd.) 

 " Spores .023— 28 mm. long, .004— 5 mm. broad." (Nyl.) Spores .025— .030 

 mm. long, .004 mm. broad. 



5. St. venosum, (Ach.) dirty-cream-colour, tartareous, nigro- 

 fusco-limitate, smooth, continuous, in iurgescent patches ; apothecia 

 lirellozform, dark-reddish-brown, innate, slender, variously branched. 



