CLAnONlA.] CI.AItDMKl. 145 



glaucous-green above, whitish beneath ; prxletia sliort, cylindrical, 

 glabrous, subverrucose or somewhat foliaceous, scjphif'erous, greyish- 

 green or glaucous-white ; scyphi dilated, proliferous from the centre 

 and from the denticulate margins (K — , CaCl — ). Apothecia small, 

 simple or conglomerate, brown. — Cromb. Grevillea, xi. p. ll;j. — 

 CJadonia verticillata var. sohoJifern Leight. Ann. Mag. Xat. Hist, 

 . ser. 3, xviii. p. 411, Lich. Fl. p. 64, ed. 3, p. 59 ; Cromb. Lich. 

 Brit. p. 19. Cenomi/ce chdomorpha var. sohoHfera Del. in Dub. Bot. 

 Gall. (1830) p. (531. Coralloides sr>fphifon)ie, marqinibun radiatis 

 et foliatis Dill. ^Musc. 85, t. 14. f. 9 a, k. Lichenoides py.vidatum, 

 marr/inihus elef/anfer foliatis Dill, in Ray, Syu. ed. 3, 69. 33. — ■ 

 Brit. Exs. : l^eight. u. 14 ; ^ludd, n. 9 pro parte, Clad, n. 2 ; Larb. 

 Lich. Hb. n. '622. 



Very closely allied to C. cerricornis, from which it i-t at once separated 

 by the reaction with K. In (jther resjjects it is distinguished chieflv by 

 the somewhat smaller (rarely nearly as large) and less caespitose thallua, 

 by the margins of the soyplii and the prolificatious, which are often 2, 

 rarely 3, in which respect it more resembles C. rerticillata. From this 

 also it seems distinct, and preserves its own type. The podetia are occa- 

 sionally sparingly foliaceous, and the apothecia are usually numerous. 



Hah. On mossy boulders, rocks, and the ground in upland districts. — 

 Distr. Somewhat local in S., W., and N. England, the Highlands of 

 Scotland. S. Ireland, and the Channel Islmds; no doubt often over- 

 looked. — B. M. : Grosnez Common, Island of Jersey. Near Dawlish and 

 Fluuter Tor, S. Devon ; vSt. Breock and Helminton, Cornwall ; Malvern, 

 Worcestershire ; Rhewgreidden and Dolgelly, Merionethshire ; A\ ton 

 and Ino^leby Moor, Cleveland, Yorkshire; Windermere, Westmoreland. 

 New Galloway, Kirkcudbrightshire ; Barcaldine, Argyleshire ; Glen 

 Lochay and Rannoch, Perthshire ; Countesswells, near Aberdeen ; Glen 

 Nevis. Inverness-shire; Applecross, Ross-shire. Ballyedmoud, co. Cork. 



17. C. macrophylla Xyl. Flora, 1873, p. 299.— Thallus squa- 

 muloso-foliaceous at the base ; squaraules large, glaucous above, 

 whitish beneath, crenate at the inargias ; podetia moderate or some- 

 w'liat elongate, cylindrical, ascyphous or often with nari'ow scyphi, 

 rough with smaller glaucous squaraules, becoming at length carious 

 (K-|- yellowish, CaCl — ). Apothecia brown, generally confluent; 

 spores 0,008-0,011 mm. long, (>,0035 mm. thick. — Cromb. GreviUea, 

 xi. p. 113. — Cladonia ventricom /3. macrophifUa Schaer. 8pie. (1833) 

 p. 316. 



In old age the podetia (which are then often blackish at the base, a« 

 are also the basal squamules at their base) become more or less carious, 

 and thus somewhat resemble those of C. variasa. P'rom C. decorticata 

 Florke, with which it has sometimes been confounded, and which pro- 

 bably also occurs in this country, it differs in the lai-^er squamnles and the 

 chemical reaction. In the only fertile British specimen the apothecia are 

 aggregate and deformed. 



Hah. On earth-covered boulders and ledges of rocks in wooded moun- 

 tainous regions. — Distr. Apparently very local and scarce among the S. 

 and N. Grampians, Sf-otland. — B. M. : Craig Calliach, Perthshire; Head 

 of Glen Qnoirh. Biaemar, Abtrdeenshire. 



L 



