2S0 



LICHE.VACEI. 



[SOLORIXA. 



■VN-Iiicli at length t'orms an evanescent niaviriu. All the spec-ies are normallj' 

 tenicule, the thallus being closely adiiate to the ground. With the excep- 

 tion of .S'. octospora, all the 

 European species have been 

 found in Britain. 



1. S. crocea Ach. Lich. 

 Tniv. (IblU) p. 149.— 

 Thallus orbicular, thickish. 

 appressed, more or less 

 smooth, laciniato - lobed, 

 undulate at the margin, 

 dark-greenish when moist, 

 reddish- or cinnamon- 

 greyish Avhen dry ; be- 

 neath (as also the medulla) 

 deej) orange- or saffron- 

 coloured, villoso - nervose, 

 indistinctly subrhiziuose. 

 Apothecia moderate, plane, 

 rotundate or oblong, tumid, 

 dark brownish-red ; spores 

 6-8na), oblong or fusi- 

 formi - oblong, brownish, 

 0,035-45 mm. long, 0,010- 

 12 mm. thick. — Gray, Xat. 

 Arr. i. p. 429 ; Hook. Fl. 

 Scot. ii. p. 36 : Sm. Eng. 

 Fl. V. p. 214 : Mudd, Man. p. 85 : Cromb. Lich. Brit. p. 29 : Leight. 

 Lich. Fl. p, 112, ed. 3, p. 106. — Lichen, croceus Linn. Fl. Suec. 

 (1755) p. 1101 ; Lightf. Fl. Scot. ii. p. 856 : Huds. FL Angl. ed. 2, 

 p. 548 ; With. Arr. ed. 3, iv. p. 63 ; Eng. Bot. t. 49. Lichenoides 

 suhtus o'oceum, peltis oj^pre^sis Dill. Muse. 211, t. 30. f. 120. — 

 Brit. Exs. : Cromb. n. 46 ; Dicks. Hort. Sic. n. 50. 



A beautiful plant, readily distinguished by the safiron-colour of the 

 underside of the thallus, which, even when growing, is generally per- 

 ceptible from the margins being more or less subfree and upturned. The 

 apothecia are at first slightly immersed and rounded, then plane, oblong, 

 and at length difform and somewhat large. On the thallus is occasionally 

 seen the parasitic fungus, Sji/iceria Ucheuicola DeXot. 



Hnh. On the ground, and in fissures of rocks and boulders in alpine 

 places. — Distr. Kather local and scarce towards the summits of some of 

 the higher Scottish Graiupians, abundant on the top of Ben Lawers; very- 

 rare on the mts. of S.W. Ireland. — B. M. : Ben Lomond, Stirlingshire ; 

 Ben More, Benteskerney and Ben Lawers, Perthshire ; Clova Mts., For- 

 farshire ; Lochnagar, Murrone, Ben-naboord,and Ben Macdliui, Aberdeen- 

 shire ; Ben Nevis, Inverness-shire. Brandon Mts., co. Kerry. 



Fig. -49. 



^olorhm saccafa Ach. — a. Gonidimia. x350. 

 b. Tbeca and paraphysis, x350. c. Three 

 spores, X 5U0. 



2. S. saccata Ach. Lich. Univ. (1810) p. 149.— Thallus orbi- 

 cular, submembranaceous, smooth or subsmooth, lobato-divided, 

 pale-greyish or pale-brownish, occasionally white-pruinose ; beneath 



