1434 



HAWORTHIA 



HAWORTHIA 



expdnsa, Haw., Aloe expdnsa, Haw. A. rigida expdnsa, 

 Salm, Apicra pdtula, Willd.), Salm, Aloe 4, f. 36. 



BB. Lvs. spirally many-ranked, erect, biconvex, white- 

 warty. 



5. Reinwardtii, Haw. (H. fascidta, Haw. Aloe 

 Reinwdrdtii, Salm). Fig. 1787. St. with Ivs. 1H-2 x 4-6 

 in., somewhat cespitose: Ivs. lanceolate, )4 x 1-1)4 in., 

 coarsely white-warty in rows on the back: infl. 1-1)4 

 ft. high, somewhat nodding, simple; fls. lined with rose. 

 Cape. Salm, Aloe 6, f. 16. Berger 27. J.H. III. 59, 

 p. 628. A smaller form is var. minor, Baker. 



6. coarctata, Haw. (Aloe coarctdta, R. & S. H. 

 Reinwdrdtii viridis, Hort.). St. with Ivs. 3x6-8 in., 

 somewhat cespitose: Ivs. triangular, )4*2 in., sparingly 

 and finely white-dotted in lines beneath: infl. 1 ft. high, 

 nodding, simple; fls. lined with red. Cape. Salm, 

 Aloe 6, f. 17. Berger 27. 



AA. Foliage in a spirally subradical rosette. 



B. Lvs. not pellucid, dull and firm. 



c. The Ivs. not hard-margined, with prominent white 



tubercles. 



7. margaritifera, Linn. (H. major, Duval. Aloe 

 margaritifera, Mill. A. piimila margaritifera, Linn. A. 

 margaritifera major, Haw. Apicra margaritifera major, 

 Willd.). Somewhat cespitose: Ivs. upcurved-spreading, 

 biconvex, %-l x 3 in., with scattered large pearly 

 tubercles often turning green in age: infl. 2 ft. high, 

 branched; fls. sessile, green-lined. Cape. DC., PI. 

 Gr. 57. Salm, Aloe 6. f. 5. Berger 28. The type, 

 with green Ivs. coarsely warty on both faces, varies 

 into a form with smaller more spreading Ivs., var. 

 granata (H. grandla, Haw., H. minima, Haw., Aloe 

 margaritifera minima, Ait., A. granata, R. & S., A. 

 piimila margaritifera, Linn., A. brevis, R. & S.), Dill., 

 Eltham. 16, f. 18. Salm, Aloe 6, f. 6; a large form 

 with smaller closer warts, var. erecta, Baker (H. 

 erecta, Haw., H. minor, Duval, Aloe margaritifera minor, 

 Haw., A. margaritifera media, Ait., A. minor, R. & S., 

 A. erecta, Salm), Dill., Eltham. 16, f. 17. B.M. 815. 

 Salm, Aloe 6, f. 7; also into forms with little if any 

 roughening on the upper face, var. semimargaritif era, 

 Baker (H. semimargaritffera, Haw., Aloe semimar- 

 garitif era, Salm), otherwise resembling the type; var. 

 corallina, Baker, with smaller tubercles; and var. 

 subalbicans, Salm, with whitened Ivs., Salm, Aloe 

 6, f. 1. 



8. fasciata, Haw. (Aide fasciata, Salm. Apicra 

 fascidta, Willd.). Cespitose: Ivs. erect, flattened above, 

 )4 x 1-1)4 in., somewhat .glossy, with the coarse white 

 tubercles in cross-bands: infl. scarcely 1 ft. high, 

 branched; fls. rosy-lined. Cape. Salm, Aloe 6, f. 15. 

 Berger 28. A supposed hybrid with H. attenuata, 

 which it approaches, is var. caespitosa, Berger. 



9. rugdsa, Baker (H. rddula asperior, Haw. Albe 

 rugdsa, Salm., A. rddula minor, Salm). Somewhat 

 clustered: Ivs. ascending, long-pointed, flattened 

 above, ^-1 x 3-4 in., dull green with smaller white 

 tubercles: infl. 2-3 ft. high, branched; fls. rosy with 

 green veins. Cape(?). Salm, Aloe 6, f. 9. A deeper 

 green form is var. perviridis, Salm. 



10. subulata, Baker (H. rddula Isevior, Haw. Albe 

 subuldta, Salm. A. rddula major, Salm). Somewhat 

 clustered: Ivs. ascending or outcurved at end, long- 

 attenuate, flattened above, %-l x 4-5 in., green with 

 numerous very small white tubercles beneath: infl. 

 3 ft. high, somewhat secundly branched; fls. green- 

 nerved. Cape(?). Salm, Aloe 6, f. 10. 



11. attenuata, Haw. (Aide attenuata, Haw. Apicra 

 attenuata, Willd.). Cespitose: Ivs. falcately spreading, 

 pointed, biconvex, % x 2-3 in., green with the upper 

 face rough with minute often green points and the back 

 with larger white often banded tubercles or ridges: 

 infl. 2 ft. high, somewhat branched; fls. rosy. Cape. 



Salm, Aloe 6, f. 12. B.M. 1345 (as A. radula.). Varies 

 into a form with smaller more scattered tubercles, var. 

 argyrostigma, Berger (H. subfascidta argyrostigma, 

 Baker), and one with larger and more confluent tuber- 

 cles, var. clariperla, Baker (H. clariperla, Haw., Aide 

 attenuata clariperla, Salm), Salm, Aloe 6, f. 12/3. 



12. radula, Haw. (H. rddula multiperla, Haw. 

 Aloe rddula, Jacq. v A. rddula media, Salm. Apicra 

 rddula, Willd.). Cespitose: Ivs. upcurved-spreading, 

 very long-acuminate, flattened above, % x 2)4-3 in., 

 green, with irregularly crowded minute tubercles ofl 

 both faces: infl. 1)4 ft. high, branched; fls. green- and 

 rosy-lined. Cape. Jacq., Schoenbr. 422. Salm, Aloe 

 6, f. 8. Berger 28. 



cc. The Ivs. with cartilaginous margin and keel not 

 tuberculate. 



13. albicans, Haw. (H. lievis, Haw. H . ramifcra, Haw. 

 Aloe albicans, Haw. A. margindta, Lam. Apicra 

 albicans, Willd.). Simple: Ivs. ascending or outcurved, 

 pungently acute, concavely triquetrous, 1^x3-4 in., 

 glossy, pale, neither roughened nor mottled: infl. 1 ft. 

 high, branched; fls. green- and rosy-lined. Cape. 

 B.M. 1452. Salm, Aloe 5, f. 1. Berger 29. A greenish 

 form, less margined than in the nearly white type, is 

 var virescens, Baker (H. virescens, Haw. Aloe vires- 

 cens, R. & S.). 



BB. Lvs. thick, watery-pellucid. 

 c. The Ivs. rigid, veiny above, scabrous on the back. 



14. tesselata, Haw. (Aloe tesseldta, R. & S.). Little 

 clustered: Ivs. bristly toothed, spreading, mucronately 

 short-pointed, % x 1)4 m -> glossy dull green or red- 

 dening above, 5-nerved with an open network of 

 veins, the back scabrous with whitish points: infl. 

 1-1 % ft- high, simple; fls. nerved with green. Cape. 

 Salm, Aloe 8, f. 1. Two varieties are distinguished: 

 var. parva, Baker (Aloe pdrva, R. & S.), smaller, with 

 the broad Ivs. 7-nerved. Salm, Aloe 8, f. 12. Berger 

 31; and var. inflexa, Baker, differing from it chiefly 

 in its more concave Ivs. with incurved margin. 



15. recurva, Haw. (Aloe recurva, Haw. A. anomala, 

 Haw. Apicra recurva, Willd.). Cespitose: Ivs. denticu- 

 late, recurved, gradually acute, % x 1)4 in., olive- 

 green or purplish, 3- or 5-nerved, the back scabrous 

 with green points: infl. 1 ft. high, simple; fls. red-lined. 

 Cape. B.M. 1353. Salm, Aloe 7, f. 3. Berger 31. 



cc. The Ivs. softer, scabrous on the back in the first only. 

 D. Upper face of Ivs. abruptly truncately spreading. 



16. mirabilis, Haw. (Apicra mirdbilis, Willd.). 

 Somewhat clustered : Ivs. denticulate, erect, the smooth 

 acute tip almost truncately 3-sided, % x 1)4 m -> light 

 green or the back purplish, 3- or 5-nerved: infl. 1 ft. 

 high, simple; fls. red-keeled. Cape. B.M. 1354. Salm, 

 Aloe 9, f. 1. Berger 32. 



17. asperula, Haw. (Aloe asperula, R. & S.). Little 

 clustered: Ivs. denticulate, erect, the 7- to 9-nerved tip 

 scabrid above, %xl)4 in., green: infl. 1 ft. high, nod- 

 ding; fls. rosy-keeled. Cape. Salm, Aloe 9, f. 2. 



18. retusa, Haw. (Aloe retusa, Linn. Apicra retusa, 

 Willd.). Little clustered: Ivs. subentire, spreading in 

 age, the 5- to 8-nerved mucronate tip smooth,, 

 %x 1)4-2 in., light green: infl. 1 ft. high, simple; 

 fls. nearly sessile, green-keeled. Cape. DC., PI. Gr. 

 45. B.M. 455. Salm, Aloe 9, f. 3 With scarcely 

 mucronate less regularly nerved Ivs. it is var. mutica, 

 Haw. 



19. turgida, Haw. (Aloe turgida, R. & S.). Cespitose: 

 Ivs. subentire, ascending, the acute smooth biconvex 

 or 3-sided Ivs. truncately spreading, tip 3- to 7-nerved 

 and somewhat dotted, )i x )4~% in., glossy light green: 

 infl. 8-10 in. high, simple; fls. green-nerved. Cape. 

 Salm, Aloe 9, f. 5. Berger 32. 



