148 LICHEXACEr. [CLADONIA. 



Form snbfurcata Xyl. e.v Xorrl. Xot. StilLsk. pro F. et Fl. Fenii. 

 Forh. n. s. x. (1873) p. 320. — Podetia elongate, subulate, sub- 

 stij)ate, fastigiate, branched upwards, granulato-unequal on the 

 surface, brownish. Apothecia not seen. — Cromb. Grevillea, xi. 

 p. 113. 



This A-ery peculiar form is as if au hybrid between C. degenerans and 

 C. ftircnta,' in which latter, but for the granulate podetia, it might bo 

 refeiTed as a variety. The abseuce of any reaction with K keeps it 

 distinct fi'om Clado/iia stn'cta. In this country, as elsewhere, it is always 

 sterile. 



ITdb. On moist peaty ground in subalpine tracts. — Disfr. Found only 

 very sparingly among the X. Scottish Grampians. — B. M. : Upper Glen 

 Dee, Braemar, Aberdeenshire. 



Subsp. 2. C. coralloidea Xyl.Lich. Scand. (1861) p. 54.— Thallus 

 small, somewhat pulvinate ; podetia short, branched above, sub- 

 flexiiose, yerrucose or granulate on the surface, ascyphous. Apo- 

 thecia small, crowded, brown. — Cromb. Grevillea, xv. p. 45. — Cla- 

 donia furcata subsp. coralloidea Cromb. Grevillea, xi. p. 11 3. 

 Cladonia coralloulfa Mudd, Brit. Clad. p. 5. Cenomyce coralloidea 

 Ach. Lich. Univ. (1810) p. '52S.—Brit. E.rs. : Mudd, Clad. n. 4. 



Though receding in various respects from the ti'pe, this, according to 

 the specimen from Acharius in Herb. Linn. Soc, is most probably to be 

 regarded as a subspecies of C. deyeneratis. It is not unlike C. furcata 

 \HT. palamtea (Ach.), but at once diflers from this by having a distinct 

 basal thallus. The only British specimens seen agree with the plant of 

 Acharius, except tliat the podetia are partly subsquamulose. The apo- 

 thecia seem to be not unfrequent, 



Ilab. On the ground on wet heaths in mountainous districts. — Distr. 

 Very local and scarce in N. England and among the S. Grampians, Scot- 

 land. — B. M. : Baysdale Moor, Cleveland, Yorkshire. Ben Lawers, 

 Perthshire. 



19. C. lepidota Xyl. Xot. SiiUsk. pro F. et Fl. Feun. Forh. n. s. 

 v. (1866) p. 176. — Thallus squamulose at the base; sqttamules 

 somewhat large, crenato-incised, pale glaucous above, white beneath ; 

 podetia robust, pale, foliolose or squamuloso-foliolose ; scyphi 

 usually narrow, irregular, difForni or cristato-divided (K-)- yellow, 

 CaCl— ). Apothecia small, brown, conglomerate. — Ctnoni>fce (/ono- 

 re<ja f. le-pidota Ach. Syn. (1814) p. 259. 



From C. def/enerans, of which it has usually been regarded as a variety, 

 this differs in being more robust and paler, in having the podetia squa- 

 miUose with the squamules larger (as also at the base), and in the 

 reaction ^vith K. The type, however, does not occur in our Islands, but 

 ouly the following form. 



Form hypophylla Cromb. Grevillea, xi. (1883) p. 113. — Thallus 

 foliaceo-squaniulose, subcajspitose, greyish-white or greenish-grey, 

 Avhite beneath; podetia obsolete (K 4- yellow, CaCl — ). Apothecia 

 sm:dl, sessile, dark-brown. — Cladonin deijenerans f. In/iiopln/lla 



