LECAxoR.v.] Li:('AXO-T,i:rii)i;T:r. ^iOo 



would then be a variety, 'i'lie tliiillus at lcn;,'tli becomes indeterminale 

 ill consequence of the conliuence ot several thalli. The apothecia are 

 numerous and crowded ; but the sperumgones are not present. 



JItif). On quartzose rocks la a subalpine district. — DLsfr. Found only 

 sparingly in a single locality among the N. Grampians, Scotland. — B. M. : 

 Morroue, Jiraemar, Aberdeensliire. 



18. L. granulosa Nyl. e.c Lamy, Bull. Soc. Bot. Fr. t. xxx. (1883) 

 p. 37;J. — Thallus orbicular, closely adnate, minutely diffracto- 

 granulose, shortly subnidiate at the circumference, yollow-vitellinc ; 

 granules usually crenuluto, scattered, or agglomerate, but not con- 

 tinuous (K + purplish). Apothecia small, concolorous (K + purplc), 

 the thalline margin entire, at length subcrcnulate ; spores (),(U()-1(J 

 mm. long, 0,000-8 mm. thick. — Cromb. Grevillca, xviii. p. 45. — 

 Amphiloma gramdosinn Miill. Arg. Mem. Soc. Phys. et Hist. nat. 

 Genev. xvi. (1862) p. 380. 



Xot unlike less developed states of L. cirrochroa, as observed by 

 Miiller /. c, but differing entirely in the crenulato-granulose and non- 

 efflorescent thallus. It is only sparingly ethgurate at the extreme cir- 

 cumference, with the radii rugose, ])lane or convex. In the two liritish 

 specimens seen, the apothecia are but few, with the thalline margin at 

 times evanescent. 



Hah. On calcareous rocks in a hilly district. — Distr. Only ver^'' 

 sparingly in W. England. — B. M. : Cheddar Clitts, Somersetshire. 



19. L. teicholyta Ach. Lich. Univ. (ISIO) p. 425 ; Xyl. Flora, 

 1873, p. 197.- — Thallus subdetermiuate, thin, entirely pulverulento- 

 granulose or occasionally radiato-lobed or crenate at the circum- 

 ference, csesio-greyish or greyish-white (K— ). Apothecia small 

 or submoderate, plane, orange- or tawuy-red (K-|- deep purple), 

 the thalline margin thickish, undulate, whitish ; spores ellij)soid, 

 0,012-16 mm. long, 0,008-9 mm. thick. — Cromb. Grevillca, xviii. 

 p. 45. — Lecanora arenaria Cromb. Lich. Brit. p. 46 ; Leight. Lich. 

 Fl. p. 223, ed. 3, p. 212. Callo])isma arenarium Mudd, Man. 

 p. 139. Lichen aremirlus Dicks. Crypt, fasc. iv. p. 27. — Lecanora 

 aesiorufa Sm. Eng. Fl. v. p. 189. Lulien ccesiorufus Eng. Bot. 

 t. 1040. Hinodina ruhricosa Gray, Xat. Arr. i. p. 452. — Brit. Exs. : 

 Larb. Lich, Hb. n. 96. 



Easily recognized by the csesio-greyish, subpulverulent thallus and the 

 saffron-red colom- of the apothecia. The thallus is usually subeff use, 

 forming a loose crust, rarely determinate and slightly radiating at the 

 circumference. It is at times almost entirely evanescent, when it is 

 Lichen arenarius Pers. in Ust. Ann. vii. (1794) p. 27. The apothecia, 

 which are imiato-sessile, are scattered or occasionally a few congregated. 



Hab. On sandstone rocks and walls, rarely on bricks, in maritime and 

 lowland districts. — Distr. Local and scarce in S.E. and W. England, 

 and in S. AVales. — B. M. : Strumpshaw, Xorfulk ; Buiy St. Edmund's, 

 Suffolk ; Maidstone, Kent ; Fairhght, Hastings, Sussex ; Isle of Wight ; 

 near Hereford; near Monmouth; Wi.sbech and A^'aterbeach, Cambridge; 

 near I^ydstep, Pembrokeshire. 



