Haworthia. | LiLiacea!) (Baker). 351 
49. H. letevirens (Haw. Suppl. 53); rosette about an inch long, 
2-3 in. diam.; leaves 20-30, dense, multifarious, ascending, oblanceo- 
late-oblong, 1-1} in. long, 3 in. broad, 3 in. thick, pale green, turning 
reddish when old, flat on the face, with 3-5 indistinct lines towards 
the apex, rounded and keeled on the back, with a distinct pellucid 
awn at the tip, denticulate on the margins and keel ; peduncle 
simple, slender, } ft. long; raceme lax, simple, few-flowered ; 
pedicels very short; bracts minute, deltoid ; perianth 2 in. long, 
limb half as long as the tube. Baker in Journ. Linn. Soc. xviii. 
212. Aloe letevirens, Link, Enune. i. 335 ; Salm-Dyck, Aloe, sect. x, 
jig. 3; Kunth, Enum, iv. 511. 
South Arrica: without locality, living cultivated plants! 
CENTRAL Raion : Graaff Reinet Div., Bolus ! 
Introduced into cultivation by Bowie in 1818, 
50. H. polyphylla (Baker in Journ. Linn. Soc. xviii, 213); 
leafy stem short; rosette 3-81 in. diam.; leaves 40-50, dense, 
multifarious, oblong-lanceolate, 14 in. long, 3 in. broad, $4 in. thick, 
green, flat on the face, not pellucid but paler towards the tip, with 
7~9 close faint vertical lines, apex very acuminate and aristate ; 
back rounded with 1-3 keels in the upper third; margins dis- 
tinctly dentate ; peduncle simple, a foot long; raceme simple, 12-15 in. 
long ; lower pedicels 1—3 in. long; bracts lanceolate-deltoid ; perianth 
§~£ in. long; limb shorter than the tube. 
Sours AFrica: without locality, Cooper! 
Described from living cultivated plants introduced by Cooper about 1860. 
Mr, N, E. Brown thinks this is a mere variety of H. altilinea, Haw. 
51. H. denticulata (Haw. Revis. 58); leafy stem short ; rosettes 
3~4 in. diam. ; leaves 20-30, dense, multifarious, oblong-lanceolate, 
cuneate in the lower half, 1}-1} in. long, jin. broad at the 
middle, 4-3 in. thick, pale green, colourless towards the tip with 5-7 
green vertical lines, shortly awned, rounded on the back and 
keeled towards the apex; margins minutely denticulate ; peduncle 
simple, about 3 ft. long; raceme lax, simple, about 3 ft. long ; 
pedicels very short ; bracts lanceolate-deltoid ; perianth £ in. long : 
limb nearly as long as the tube. Baker in Journ. Linn. Soc. XxViii. 
213. Aloe denticulata, Roem. et Schultes, Syst. Veg. vii. 689. A. 
altilinea var. denticulata, Salm-Dyck, Aloe, sect. xi. fig. 3 B; Kunth, 
Enum, iv. 512. : 
Soutn Arrica: without locality. 
Introduced into cultivation by Bowie about 1818. 
52. H. vittata (Baker in Saund. Ref. Bot. t. 263); leafy stem 
short; rosette 3-31 in. diam.; leaves 20-30, dense, multifarious, 
oblong-lanceolate, very acuminate, 13-1} in. long, 3-§ in. broad at 
the middle, } in. thick, pale green, nearly flat on the face, limpid 
towards the apex on both sides with about five short vertical stripes, 
narrowed gradually into a long pellucid awn, rounded on the back 
