PHTSClA.j PHTSCIEI. 29U 



clotliofl with small, prominent, crowded granules. Apothecia con- 

 cave, the margin thickish, iuflcxed and crcnato. 



A rather peculiar form referable to this variety, witli wlii -li it a;n"ee9, 

 except in the granulose thalhis aud the concave apothecia. It is allied to 

 var. suhifranulosa, Nyl. (Flora, 1870, p. 281), but is larger and more 

 graniilose. Tlie granules are usually so nuiuerous as almost to obliterate 

 the lobes, unless at the circumference, and upon them are frequently 

 seen the young apothecia and the spermofronus. It was appareatly a 

 spermogon'iiferous state of this tliat Weddell( Bull. Soc. Bot. 1800, p. I'ji) 

 desfribes as subvar. tumida {cfr. Leight. Lich. Fl. iii. p. 133). In the 

 specimens seen the apothecia are constantly concave, aud do not become 

 plane. 



Hab. On trunlis of trees and rocks in maritime, lowland, and upland 

 districts. — Distr. Local aud rare in S., Central, and N. 1-mgland. — B. M. : 

 Near Ryde, Isle of Wight; St. Minver, Cornwall; Great Comberton, 

 Worcestershii-e ; Weardale, Uui-ham. 



Tar. y. ectanea Xyl. Act. Soc. Linn. Bord. ser. 3, i. (18.56) 

 p. oOO. — Thallus imbricato-laciniate, deep tawnj--yellow or orange- 

 red : lacinia) narrow, multifid, plane or convex, impresso-uneiiual. 

 Apothecia small or moderate, the margin entire or subentire. — Mudd, 

 Man. p. 113; Leight. Lich. Fl. p. 143, ed. 3, p. 132. — Parmelia 

 parietina, (3. ectanea Ach. Lich. Univ. (1810) p. 464 pro parte. 

 Physcia parietina var. aureola Cromb. Lich. Brit. p. 3S. — Lichen 

 fulvus Dicks. Crypt, fasc. iii. p. 16, is perhaps referable to this 

 variety. — Brit. Eas. : Larb. Ciesar. n. 1. 



Distinguished by the thaUus being less determinate, intenser in colour, 

 and by the nan-ow and more divided lacinife. .States of it sometimes 

 occur which at first .-ight closely resemble Lecanora eJegam. In speci- 

 mens which are less closely appressed to the substratum, the under sur- 

 face of the thalkis, at least towards the circumference, is occasionally 

 subconcolorous with the upper. The apothecia, which are usually nume- 

 rous, liave the margin generally entire, though sometimes slightly 

 crenulate. 



Hah. On dry rocks in maritime, rarely in mountainous districts. — 

 Distr. Local, though plentiful where it occurs, in the Channel Islands, 

 S W. -dnd. X. England, S. and X. Wales, in E. Scotland, aud S.W. Ire- 

 land. — B. M. : Islands of Jersey, Sark, and Guernsey, Bolt Head, 

 Devonshire ; Penzance, Cornwall ; Tenby, Pembrokeshire ; Barmouth, 

 Merionethshire ; Isle of Man ; fern Islands, Xorthumberland ; St. Bees, 

 Cumberland. Cramond, near Edinburgh ; Portletlieu, Kincardineshire ; 

 Peterhead and on the Khoil, near Ballater, Aberdeenshire. Xear Black- 

 water Bridge, co. Kerry. 



4. P. polycarpa Xyl. ex Lamy, Bull. Soc. Bot. t. xxx. (1883) 

 p. 3o'J — Thallus effuse, subpulvinate, greenish-yellow ; lobes short, 

 granulato-conglomerate and grauulato-crenate at the margins 

 (K-|- purple). Apothecia small or nearly moderate, numerous, 

 crowded, the margiu turgid, entire ; spores 0,011-1.5 mm. long, 

 0,006-8 mm. thick.— Cromb. Grevillea, xv. p. 78. — P. parietina 

 ^.^jo^ycfnyjrt Mudd, Man. p. 113; Cromb. Lich. Brit. p. 38; Leight. 



