148 LICHENACEI. [cLADONTA. 
Form subfurcata Ny). ex Norrl. Not. Sillsk. pro F. et Fl. Fenn. 
Foérh. n. s. x. (1878) p. 320.—Podetia elongate, subulate, sub- 
stipate, fastigiate, branched upwards, granulato-unequal on the 
surface, brownish. Apothecia not seen—Cromb. Grevillea, xi. 
p. 113. 
This very peculiar form is as if an hybrid between C. degenerans and 
C. fureata, to which latter, but for the granulate podetia, it might be 
referred as a variety. The absence of any reaction with K keeps it 
distinct from C/adonia stricta. In this country, as elsewhere, it is always 
sterile. 
Hab. On moist peaty ground in subalpine tracts.—Dustr. Found only 
Yery sparingly among the N. Scottish Grampians.—3. M.: Upper Glen 
Dee, Braemar, Aberdeenshire. 
Subsp. 2. C. coralloidea Nyl. Lich. Scand. (1861) p. 54.—Thallus 
small, somewhat pulvinate; podetia short, branched above, sub- 
flexuose, verrucose 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. 113. 
Cladonia coralloidea Mudd, Brit. Clad. p. 5. Cenomyce coralloidea 
Ach. Lich. Univ. (1810) p. 528.—Brit. Exs.: Mudd, Clad. n. 4, 
Though receding in various respects from the type, this, according to 
the specimen from Acharius in Herb. Linn, Soc., is most probably to be 
regarded as a subspecies of C. degenerans. It is not unlike C. furcata 
var. palamea (Ach.), but at once differs from this by having a distinct 
basal thallus. The only British specimens seen agree with the plant of 
Acharius, except that the podetia are partly subsquamulose. the apo- 
thecia seem to be not unfrequent. 
Hab. On the ground on wet heaths in mountainous districts.— Distr. 
Very local and scarce in N. England and among the 8. Grampians, Scot- 
land.—B. M.: Baysdale Moor, Cleveland, Yorkshire. Ben Lawers, 
Perthshire. 
19. C. lepidota Nyl. Not. Sallsk. pro F. et Fl. Fenn. Forh. n. s, 
v. (1866) p. 176.—Thallus squamulose at the base: squamules 
somewhat large, crenato-incised, pale glaucous above, white beneath ; 
podetia robust, pale, foliolose or squamuloso-foliolose; seyphi 
usually narrow, irregular, difform or cristato-divided (K+ yellow, 
CaCl—). Apothecia small, brown, conglomerate.—Cenomyce gono- 
vega f, lepidota. Ach. Syn. (1814) p. 259. 
From C. degenerans, of which it has usually been regarded as a variety, 
this differs in being more robust and paler, in having the podetia squa- 
mulose with the squamules larger (as also at the base), and in the 
reaction with K. The type, however, does not occur in our Islands, but 
only the following form. 
Form hypophylla Cromb. Grevillea, xi. (1883) p. 118.—Thallus 
foliaceo-squamulose, subcespitose, greyish-white or greenish-grey, 
white beneath ; podetia obsolete (K+ yellow, CaCl—). Apothecia 
small, sessile, dark-brown. — Cladonia degenerans f. hypophylla 
