354 CYCLOCARPINEE [H=MATOMMA 
dolemma Ach. Meth. p. 167 (1803) ), and recorded by Wilkinson from 
Merioneth in Journ. Bot. xxxviii. p. 184 (1900). The apothecia of 
var. subfestiva are small and badly developed, but otherwise it is 
similar to the species. Crombie records the spermogones as dark- 
coloured, with septate sterigmata and short rod-like spermatia. 
Hab. On exposed siliceous rocks and boulders in upland or alpine 
situations.—Distr. Fairly common in upland districts of England 
and Scotland, rare in Ireland.—B. M. Wistman’s Wood and Pew 
Tor, Dartmoor, Devon; Epsom Downs, Surrey; Clee Hills, Shrop- 
shire; Moel-y-golfa, Montgomeryshire; Cader Idris, Merioneth ; 
Nant Francon, Penmaenmawr, Trefriw and Moel Siabod, Carnar- 
vonshire; Dent and Kildale Moor, Cleveland, Yorkshire; Leck, 
Lancashire ; Teesdale, Durham ; Gunnerton Crags, Northumberland ; 
New Galloway, Kirkcudbrightshire; North Berwick Law, Berwick- 
shire ; Achosragan Hill and Ben Cruachan, Argyll; Ben Lawers, Ben 
Vrackie and Birnam Hill, Perthshire; Katelaw and Clova, Forfar- 
shire ; Lochnagar, Morrone and Glen Callater, Braemar, Aberdeen- 
shire; Ben Nevis, Invernessshire; Hills of Applecross, Rossshire ; 
Wicklow. 
Form levigatum <A. L. Sm.—Thallus smooth, areolate- 
cracked, yellowish straw-coloured. Apothecia small, depressed.— 
Lecanora ventosa f, levigata Johns. ex Cromb. in Grevillea xix. 
p- 60 (1891) & Monogr. i. p. 457. 
Hab. On rocks in an upland district—B. M. Bowness Knolft, 
Ennerdale Lake, Cumberland (the only record). 
2. H. coccineum Koerb. Syst. Lich. Germ. p. 153 (1855).— 
Thallus effuse, tartareous-farinose, generally thinnish, whitish or 
pale-sulphur-coloured, with a white hypothallus (K + yellow). 
Apothecia scattered, at first innate, gradually emerging and 
becoming sessile, small or rarely up to about 2 or 5 mm. across, 
the disc plane or convex, crimson or reddish-brown (K + violet- 
purple), the thalline margin thickish or imsignificant, more or 
less crenulate, granular or pulverulent ; paraphyses coherent, 
slender, sometimes branched, sparsely septate, slightly and 
variously widened at the tips; spores elongate-fusiform, 3—7- 
septate, 30-60 » long, 5-7 p» thick ; hymenial gelatine blue with 
iodine.—Mudd Man. p. 157. Lichen coccineus Dicks, Pl. Crypt. 
fasc. i. p. 8, t. 2, fig. 1 (1785); Engl. Bot. t. 223; With. Arr. 
ed. 3, iv. p. 16. L. hematomma Ehrh. Hannover Mag. 1786, 
p. 285? Pers. in Ust. Ann. Bot. xi. p. 16 (1794) (inel. var. 
porphyrius) ; Engl. Bot. t. 486. Lecidea saxetana Ach. in Vet. 
Akad. Handl. 1808, p. 269. Lecanora hematomma Ach. Lich. 
Univ. p. 388 (1810) (incl. vars. coceinea and porphyria) ; Hook. 
Fl. Scot. ii. p. 40 & in Sm. Engl. Fl. v. p. 190; Grev. Fl. Edin. 
p. 333 ; Tayl. in Mackay FI. Hib. ii. p. 136; Cromb. Lich. Brit. 
p. 57 & Monogr. i. p. 454 (incl. var. sawetana); Leight. Lich. 
Fl. p. 252; ed. 3, p. 224. Rinodina hematomma & R. porphyria 
S. F. Gray Nat. Arr. i. p. 457 (1821). 
Exsicc. Bohl. n. 120; Dicks. Hort. Sicc. fase. v. n. 24; 
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