Haworthia.] LILIACEH (Baker). 845 
broad, } in. thick, dull green, fading to red-brown, flat on the 
face, rounded and obscurely and obliquely keeled upwards on the 
back, scabrous all over with: raised concolorous papille; flowers not 
seen. 
South A¥FRiIca: without locality. 
Described from living plants cultivated at Kew in 1879, received from Mr. 
Tisley. Like the last, a near ally of H. glabrata var. concolor. 
31. H. recurva (Haw. Syn. 94; Revis. 51); leafy stem very 
short; rosette 2-3 in. diam.; leaves 12-15, multifarious, deltoid, 
much recurved, rigid in texture, 1}~14 in, long, 2 in. broad, }~2 in. 
thick in the centre, nearly flat on the face, pale green, with vertical 
lines of deeper green, rounded on the back, keeled upwards, dark 
green, scabrous with small crowded concolorous papilla; peduncle 
simple, very slender; raceme lax, few-flowered; pedicels 4-1 in. 
long ; bracts minute ; perianth 2 in. long ; limb one-third the length 
of the tube. Baker in Journ. Linn. Soc. xviii. 208. Aloe recurva, 
Haw, in Trans, Linn, Soc. vii. 10; Bot. Mag. t. 1353 ; Salm-Dyck, 
Aloe, sect. vii. fig. 3; Kunth, Enum. iv.507. Apicra reeurva, Willd. 
in Ges. Naturf. Fr. Berl. Mag. v. 270. 
Sourn Arrica: witbout locality, a living cultivated plant ! 
Introduced into cultivation by Masson in 1795. The only living plant we 
have had at Kew of late years is one sent home by Sir H. Barkly in 1876. 
32. H. asperula (Haw. in Phil. Mag. 1824, 300) ; leafy stem very 
short ; rosette 23-3 in. diam.; leaves 10-12, multifarious, deltoid, 
very recurved, 1-12 in. long, ? in. broad, 3} in. thick in the centre, 
pale green on both sides, scabrous on the face, with minute con- 
colorous papille and marked in the upper half with 7-9 vertical 
pale green lines, rounded and smooth on the back and keeled in the 
upper half; peduncle slender, simple ; raceme lax, few-flowered ; 
pedicels very short; bracts minute, deltoid ; perianth § in. long; 
limb 3-1 as long as the tube. Baker in Journ. Linn, Soe. xviii, 
208. Aloe asperula, Roem. et Schultes, Syst. Veg. vii. 635 ; Salm- 
Dyck, Aloe, sect. ix. fig. 2 ; Kunth, Enum. iv. 508. 
Sour Arrica: without locality. : 
Introduced into cultivation in England in 1823, probably by Bowie. 
33. H. retusa (Haw. Syn. 95) ; leafy stem short ; rosette 2-8 in. 
diam. ; leaves 10-15, multifarious, deltoid, very recurved, 1-1} in. 
long, # in. broad, 3-4 in. thick in the centre, pale green, smooth on 
both surfaces, marked on the upper half of the face ee bale 
vertical lines, cuspidate at the tip, rounded on the back and kee ‘ 
in the upper half ; peduncle simple ; raceme lax, 3 ft. long ; a 
very short; bracts small, deltoid ; perianth ¢ in. long ; limb Yd 
long as the tube. Baker in Journ. Linn, Soc. xviii. 208. Aloe 
retusa, Linn. Sp. Plant. 322; Thunb, Diss. No. 15; ‘sip apnarg 
Grasses, t. 45; Ourt. in Bot. Mag. t. 455; Salm-Dyck, Aloe, sect. 
