342 LiLtacez (Baker). [ Haworthia. 
long; pedicels very short; bracts deltoid, as long as the lower 
pedicels ; perianth $ in. long ; limb half as long as the tube. Baker 
in Journ. Linn. Soc. xviii. 205. Aloe semiglabrata, Salm-Dyck, Hort. 
321; Aloe, sect. vi. fig. 2; Kunth, Enum. iv. 500. 
Soutn Argica: without locality, 
Introduced into cultivation about 1810. Scarcely more than a variety of 
H. margaritifera. . 
21. H. subattenuata (Baker in Journ. Linn, Soc. xviii. 205) ; 
leafy stem short; rosette of leaves 4-5 in. diam. ; leaves 40-50, 
crowded, multifarious, lanceolate-deltoid, acuminate, 2-3 in. long, 
$1 in, broad, } in. thick, green when young, dull purple when old, 
tlattish on the face and almost destitute of tubercles, rounded on the 
back, keeled towards the apex, with copious middle-sized scattered 
white tubercles; peduncle branched, 14 ft. long including inflor- 
escence ; racemes moderately dense, about 3} ft. long; pedicels very 
short; bracts small, deltoid ; perianth # in. long; limb half as long 
as thetube. Aloe subattenuata, Salm-Dyck, Hort. 324; Aloe, sect. vi. 
fig. 11; Kunth, Enum. iv. 504. H. Radula var. magniperlata, 
Haw. Revis. 54. 
Soutn Argica: without locality, living cultivated plants! 
First described from the collection of the Emperor Francis, at Vienna, in 1814. 
Closely allied to H. margaritifera, 
22. H. glabrata (Baker in Journ. Linn. Soc. xviii. 206) ; leafy 
stem short; rosette of leaves 5-6 in. diam.; leaves 30-40 in a dense 
multifarious rosette, lanceolate-deltoid, acuminate, 4—5 in, long, an 
inch broad, }-} in. thick, glaucous green, nearly flat and without 
tubercles on the face, rounded on the back and keeled towards the 
apex, with distant scattered middle-sized whitish tubercles, the upper 
part of the margin a continuous white homy line ; peduncle branched, 
2-3 ft. long including inflorescence; racemes about 3 ft. long; 
pedicels 3-1 in. long; bracts deltoid, as long as the pedicels ; perianth 
4 in. long; limb half as long as the tube. Aloe glabrata, Salm-Dyck, 
Hort. 325; Aloe, sect. vi. fig. 13; Kunth, Enum. iv. 505. 
Var. B, perviridis (Salm-Dyck, Aloe, sect. vi. fig. 13 8) ; tubercles much more 
crowded, greenish-white. 
Var. y, concolor (Salm-Dyck, Aloe, sect. vi. fig. 13 +) ; leaves scabrous on the 
back with minute seniaeeuan tubercles. &- 13 y) ; leaves sca 
Sourn Arrica: without locality, living cultivated plants ! 
First seen in the Berlin collections about 1830. Var. concolor is probably a 
garden hybrid, perhaps with H. seabra. . : 
23. H. Radula (Haw. Syn. 93); leafy stem short; rosette 5-6 in. 
diam. ; leaves 30-40, crowded in a multifarious rosette, lanceolate- 
deltoid, very acuminate, recurved, 24-3 in. long, ? in. broad, 3} in. 
thick, green, flat on the face, rounded on the back and keeled up- 
wards, scabrous all over both surfaces with minute white tubercles; 
peduncle simple or branched, }-1 ft. long; racemes very lax; 
pedicels short; bracts small, deltoid ; perianth $ in. long ; limb half 
as long as the tube. Baker in Journ. Linn. Soc. xviii, 206. Aloe 
