836 LILIACER (Baker). [ Haworthia. 
3. H. viscosa (Haw. Syn. 90) ; leafy stem 3-1 ft. long, 1}-15 in. 
diam., leaves included ; leaves regularly trifarious, all ascending, 
ovate, 1-1} in. long, 3 in. broad, 1 in, thick, dull green, all deeply 
concave on the face, without spots or tubercles, rugose, sometimes but 
not always viscous, rounded on the back, acutely keeled towards the 
apex ; peduncle slender, simple, } ft. long; raceme lax, few-flowered, 
3-6 in. long; pedicels erecto-patent, 1} in. long ; bracts minute, 
ovate ; perianth $ in. long ; limb one-third as long as the tube. Baker 
in Journ. Linn. Soc. xviii. 200. Aloe viscosa, Linn. Sp. Plant. 460; 
Miller, Dict. edit. viii. No. 11; Thunb. Diss. No. 2; DC. Plantes 
Grasses, t. 16 ; Bot. Mag. t. 814; Salm-Dyck, Aloe, sect. iii. fig. 3. 
Apicra viscosa, Willd. in Ges. Naturf. Fr. Berl. Mag. v. 274. 
Aloe triangularis, Lam. Encyc. i. 89. 
Var. 8, H. indurata (Haw. Revis. 49); leaves fewer, thicker, longer, less 
concave on the face. Aloe viscosa indurata, Salm-Dyck, Aloe, sect. iii. fig. 3 B. 
Vax. y, H. concinna (Haw. Suppl. 59) ; leaves longer and more recurved than 
in the type. Aloe concinna, Roem. et Schultes, Syst. Veg. vii. 653; Salm-Dyck, 
Aloe, sect. iii. fig. 4. 
Vag. 3, H. pseudo-tortuosa (Haw. Suppl. 59); rows of leaves more or less 
twisted spirally. Aloe subtortuosa, Salm-Dyck, Aloe, sect. iii. fig. 5. A. pseudo- 
tortuosa, Salm-Dyck, Cat. 8. Apicra tortuosa, Willd. in Ges. Naturf. Fr. 
Berl. Mag. v. 274. 
Var. ¢, H. torquata (Haw. in. Phil. Mag. 1827, 123) ; leaves ovate-lanceolate, 
1}-2 in, long, spirally trifarious, Aloe torquata, Salm-Dyck, Aloe, sect. iii. fig. 6. 
SourH Argica: without locality, living cultivated plants! : 
CzrrRat RuGion: stony mountain sides near Graaff Reinet, 2700 ft., 
Bolus, 559! 
Introduced into cultivation at the beginning of the eighteenth century. 
Figured both by Dillenius and Commelyn. 4 
4. H. tortuosa (Haw. Syn. 90); leafy stem 3 ft. long, 2-3 in. 
diam. including leaves; leaves all ascending, arranged in 
spirally twisted rows, ovate-lanceolate, 14-2 in. long, 2 in. broad, 
}-1 in. thick, dark green, unspotted, concave on the face, rounded 
and acutely keeled on the back, very rough on both sides with 
minute concolorous tubercles ; peduncle slender, simple, or forked; 
racemes very lax, subsecund, 6-9 in. long; pedicels }—} in. long, erecto- 
patent ; bracts minute, ovate ; perianth 4 in. long ; segments one-t 
as long as the tube, tinged with red. Baker in Journ. Linn. Soc. 
xviii. 201. Aloe tortuosa, Haw. in Trans. Linn. Soc. vii. 7 ; Roem. 
et Schultes, Syst. Veg. vii. 655; Salm-Dyck, Aloe, sect. iv. fig. 2. 
A. rigida, Bot. Mag. t. 1337, non DC. 
Var. 8, major (Salm-Dyck) ; more robust ; leaves 2-2} in. long, an inch broad. 
Aloe pal akemyth ng rake Aloe, — iv. fig. 2 B. oo 
Van. +, H. curta (Haw. Suppl. 60): f ith nish-black leaves 
about av inch long. : ss elk Be a id fae aes 
Vax. 3, H. tortella (Haw. Suppl. 61); leafy stem twisted, branched at 
the base; leaves Suskibcceaus’ ) : ge 
Sour Argica: without locality, living cultivated plants! 
Introduced into cultivation by Masson in 1797. 
5. H. subrigida (Bcker in Journ. Linn. Soc. xviii. 201) ; leafy 
