440 LICHENACEI. [leCANOBA* 



Looks at tii^t siglit a distinct v^pecies, but is evidently referable to 

 siibsp. intricata. It is, however, a very well-marked variety characterized 

 by the constantly lecauorine apothecia and the peculiar habitat. The 

 liypothallus also is not distinctly visible. The apothecia are numerous 

 and crowded. 



Hub. On tufts of mosses (Grimmias and Andreaeas) upon boulders in 

 alpine places. — DMr. Only very sparingly on the summits of two of 

 the Grampians, Scotland. — B. M. : Ben Lawers, Perthshire ; Ben-nabooi"d, 

 Braemar, Aberdeenshire. 



126. L. stenotropa ^'yl. Flora, 1872, p. 251.— Thallus subefFuse, 

 thill, yellowish-greeu ; otherwise as in the preceding species. 

 Apothecia small, convex, immarginate, pale-yellowish ; paraphyses 

 thickish ; spores ellipsoid, 0,010-12 mm. long, 0,003-4 mm. thick; 

 hymenial gelatine bluish, then sordidly wine-coloured with iodine. 

 Cromb. Grevillea, xviii. p. 69. 



The tliallus is little visible in the single authentic British specimen 

 (determined by Nylander) -which, however, is well fertile. It differs 

 from L. poit/tinpa, of which it may be but a subspecies, only in the 

 thicker paraphyses and thinner spores. 



Hob. On schistose stones of a wall in an upland district (associated 

 with Leeidea leucojihcea Flcerke).— X)/s(^;'. Only very sparingly on c-ne of 

 the Central Grampians, Scotland. — B. M. : Ciaig Tulloch, Blair Athole, 

 Perthshire. 



127. L. subintricata ^'yl. Flora, 1872, p. 249. — Thallus effuse, 

 very thin, grauulose, ochroleucous or sordid-greyish, often obsolete 

 (Kf -I- yellowish, CaCl — ). Apothecia small, plane or slightly con- 

 vex, biatoroid, variable in colour, yellowish, brown, olive, livid- 

 brown or blackish, the margin thin, entire or excluded ; spores 

 ellipsoideo-ohlong, 0,007-10 mm. long, 0,003-4 mm. thick ; para- 

 physes slender: hymenial gelatine bluish with iodine. — Cromb. 

 Journ. Bot, 1873, j). 133 (excl. form obscurior) ; Leight. Lich. Fl. 

 cd. 3, p. 177 pro ■parte. —Lecanora varia var. subintricata Xyl. 

 Flora, 186S, p. 478. — Brit. Exs. : Cromb. u. 162 pro parte. 



As observed by Nylander, this is intermediate in appearance between 

 L. symmieta var. sefjjincohi and L. polytropa sub^^p. intricata. It is, 

 however, well distinguished from both by the smaller spores and the 

 character of the spermatia. The thallus, elsewhere somewhat variable, 

 is almost evanescent in the British specimens. Both apothecia and 

 spermogoues are numerous, the latter with spermatia thinly acicular, 

 obsoletely or very slightly arcuate, 0,C0U-7 mm. long, 0,0005 mm. thick. 



Hah. On old pales in an upland district. — Didr. As yet found only 

 among the Central Grampians, Scotland. B. M. : Glen Fender, Blair 

 Athole, Perthshire, 



12*-. L. sarcopis Ach. Syn. (1J<14) p. 176; Nyl. Flora, 180fl, 

 p, 412.— Thallus subcifuse, thiunish or submodcratc. granuloso, 

 yellowish-grey or sordid-yollow (K-|- yellow, CaCl— ). Apothecia 



