CLADONIA. | CLADONIEI. 159 
Form tumida Cromb. Grevillea, xi. (1883) p. 114.—Podetia 
turgid, ventricose, the axils and apices dilated, infundibuliform. 
This is analogous to form ventricosa of C. squamosa, with which but 
for the reaction it might readily be confounded. It is apparently but 
rarely fertile. 
Hab. On moist shady rocks among mosses in upland tracts.—Distr. 
Local and scarce in 8. England, N. Wales, S. Scotland, and in the S.W. 
Highlands.—B. M.: High Rocks, near Tunbridge Wells, Kent; Dolgelly, 
Merionethshire. New Galloway, Kirkcudbrightshire ; Barcaldine, Argyle- 
shire. 
28. C. asperella Cromb. Grevillea, xi. (1883) p. 114.—Thallus 
squamulose at the base, the syuamules minute, inciso-crenate, sub- 
evanescent; podetia elovgate, slender, erect, whitish or greyish- 
white, glabrous, squamulose or furfuracoo-pulverulent, proliferously 
and variously branched, the axils and apices pervious, denticulate 
(K—, CaCl—). Apothecia small, conglomerate, brown.—Cladonia 
squamosa 3. asperella Florke, Clad. (1828) p. 1382; Mudd, Brit. 
Clad. p. 20.—To this fide Nyl. is referable also Cenomyce speciosa 
Del. in Dub. Bot. Gall. ii. p. 626.— Brit. Evs.: Mudd, Clad. n. 41. 
From subspecies C. adspersa, which it closely resembles, this differs in 
the erect podetia and their fasciculate branches, which are subulate or 
truncate at the apices. It may thus with propriety. be regarded as » 
distinct species rather than as a subspecies of C. squumosa. In the very 
few British specimens the podetia, which are 2-33 in. long, are sparingly 
foliiferous throughout, with the apothecia rarely present. 
Hab. Among mosses on rocks and heaths in upland districts—Distr. 
Apparently very local and scarce in N. England.—B. M. : Stogdale, Cleve- 
Tani, Yorkshire. 
Form polychonia Cromb. Grevillea, xi. (1883) p. 114.—Podetia 
glabrous and furfuraceo-pulverulent, the axils dilated and radiato- 
proliferous.—Cladonia squamosa f. polychonia Flérke, Clad. (1828) 
p- 1386; Mudd, Brit. Clad. p. 20.—Brit. Hxs.: Mudd, Clad. n, 42. 
Differs in the absence of any folioles on the podetia (except occasionaliy 
towards their base) and in the form of the axils, The apothecia are very 
rare. 
Hab. On the ground in upland heaths.—Distr. Rare and local in N. 
England; probably to be detected elsewhere.—B.M.: Baysdale, Cleve- 
land, Yorkshire. 
29, C. cespititia Flérke, Clad. (1828) p. 8.—Thallus squamulose- 
foliaceous at the base; leaflets small, ascending, laciniato-lobed, 
crenate or eroso-lacerate at the margin, densely ceespitoso-congested, 
pale-green above, white beneath; podetia very short, naked, cylin- 
drical, simple or divided, pale (K—,CaCl—). Apothecia conglo- 
merate either on the podetia or on the leaflets, flesh-coloured or 
reddish; spores 0,009-16 mm. long, 0,004-5 mm. thick.—Cromb. 
Grevillea, xi. p. 114.—-Cladonia squamosa subsp. cespititia Cromb. 
Lich. Brit. p. 20. Cladonia squamosa e, cerspititia Mudd, Man. p. 57, 
