56 COLLEMACET. [COLLEMA. 



Tunbridge Wells, Kent ; St. Leonard's Forest and Ilenfield, Sussex ; New 

 Forest, Ilampsliire; Barmouth, Merionethshire; Injrlehy, Cleveland, 

 Yorkshire. Barcaldine, Argyleshire ; near Killin and Aberfeldy, Perth- 

 shire ; Loch Liuuhe, Inveniess-shire. O'Sullivans Cascade and Derrv- 

 CLiintry, Killarney, co. KeiTv. 



23. C. fascicnlare Ach. Lich. Univ. (1810) p. G89.— Thallus sub- 

 crenato-lobulate, bro-wnish-green or dark-green ( I -1- blood-red) : 

 lobules rounded, usually in erect, small, subpedicellatc tufts, dilated 

 upwards. Apothecia small, very numerous and crowded, biatorine, 

 somewhat convex, reddish, the margin thin, undulate ; spores fusi- 

 form, normally 3- sometimes 1-septate, 0,016-29 mm. long, 0,004-(i 

 mm. thick. — CoUema fascicnlare Hook. Fl. Scot. ii. p. 71 : Sm. 

 Eng. Fl. V. p. 210 ; Cromb. Journ. Bot. 1874, p. 334 ; Leight! Lich. 

 Fl. ed. 3, p. 24. EncliyUum fasciculare Gray, Nat. Arr. i. p. 398. 

 Lichen fascicularis Linn. !Mant. ii. (1771) p. 153: Lightf. Fl, Scot, 

 ii. p. 841 ; Huds. Fl. Angl. ed. 2, p. 536 ; With. Arr. ed. 3, iv. 

 p. 76; Eng. Bot. t. 1162. SynecliohJastus conglomeratus (Hoffm.) 

 Mudd, Man. p. 43. ColJema coivilomeratum Cromb. Lich. Brit. p. 6 ; 

 Lcight. Lich. Fl. p. 23. Lichenoides gelatinosum pahnatum, tuher- 

 culis congloineratis Dill. Muse. t. 19. f. 27 a. 



Distinguished by the thalUne lobules of the thalkis being fasciculate, 

 except (in entire specimens) at the immediate circumference, where they 

 are erenate and sterile. The apothecia are so crowded as sometimes to 

 render the thallus invisible except when moistened ; so that in dry 

 weather it is very apt to be overlooked. 



Hob. On the trunks of old trees in wooded upland districts. — I>istr. 

 Local, and not common where it occurs, in the mountainous ti-acts of W. 

 Britain ; not detected in Ireland. B. M. : St. Leonard's Forest and Hen- 

 field, Sussex ; near Barmouth, Merioneth ; Nant Ghm, Denbighshire ; 

 Ambleside, Westmoreland. Loch Katrine, Kenmore, and Den of Aber- 

 feldy, Perthshire ; Clova, Forfarshire. 



24. C. multipartitum Sm. Eng. Bot. xxxvi. (1814) t. 2582.— 

 Thallus laciniate, radiate, olive-brown or olive-black : laciniae nar- 

 row, multifid, somewhat convex, undulate and twisted, lobato- 

 ''ivided at the apices, the lobes divergent. Apothecia moderate, 

 plane or convex, dark-reddish, the thaUine margin thickish, entire ; 

 spores cylindi-ical, often somewhat curved, normally 3-septate and 

 variously oleoso-locular, 0,( 128-48 mm. long, 0,007 mm. thick ; 

 paraphyses thick, pauci-articulate. — Xyl. Syn. i. p. 116, t. ii. f. 8; 

 Sm. Eng. Fl. V. p. 210 : Tayl. in Mack. Fl. Hib. ii. p. 108 : Cromb. 

 Enum. p. 7 ; Leight. Lich. Fl. p. 26, ed. 3, p. 24. — Synechohlastus 

 multipartitus Mudd, Man. p. 43. — Brit. Exs.: Bohl. n. 70. 



From states of C. melcenum, especially ioxm. jacobanfolium, with which 

 it might be confounded, this is distinguished by the radiating thallus 

 which is often centrifugal, and by the convex, undulate, or twisted 

 laciuiai. The laciniae are sometimes rather discrete, and radiate con- 

 tinuously from the centre, while at other times they are more or less 

 broken up and dispersed. As observed by Xylander (Syn. p. 117), the 

 iuterual structure of the thallus is nearly similar to tliat of C. chcileum, 



