1434 



HAWORTHIA 



HAWORTHIA 



exTpdnsa, Haw., Albe expdnsa, Haw. A. Hgida expdnsa, 

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



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

 warty. 



5. Reinwardtii, Haw. {H. fasciata, Haw. Aide 

 Reinwdrdtii, Sa.\m). Fig. 1787. St. with Ivs. 11^-2 x 4r-6 

 in., somewhat cespitose: Ivs. lanceolate, }/2X 1-134 in-, 

 coarsely white-warty in rows on the back: infl. 1-134 

 ft. high, somewliat nodding, simple; fls. hned with rose. 

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

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



6. coarctata, Haw. {Aloe coarctata, R. & S. H. 

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

 somewhat cespitose: Ivs. triangular, y^ x 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 lvs. not hard-margined, with prominent white 



tubercles. 



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

 margaritifera, MiU. A. piimila margaritifera, Linn. A. 

 margaritifera major. Haw. Apicra margaritifera major, 

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

 biconvex, %-\ 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. 

 Or. 57. Salm, Aloe §6. f. 5. Berger 28.— The type, 

 with green lvs. coarsely warty on both faces, varies 

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

 granata (H. granata, Haw., H. minima, Haw., Aide 

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

 piimila margaritifera, Linn., A. hrevis, 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, Aide margaritifera minor, 

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

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

 Sakn, Aloe §6, f. 7; also into forms with httle if any 

 roughening on the upper face, var. semimargaritifera, 

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

 garitifera, Salm), otherwise resembling the type; var. 

 corallina, Baker, with smaller tubercles; and var. 

 subalbicans, Salm, with whitened lvs., Sahn, Aloe 

 §6, f. 1. 



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

 fasciata, Willd.). Cespitose: lvs. erect, flattened above, 

 34 X 1-1 ,'-2 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. caespitdsa, Berger. 



9. rugosa, Baker {H. rddula asperior. Haw. Aide 

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

 clustered: lvs. ascending, long-pointed, flattened 

 above, %-l 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, Sakn. 



10. subulata, Baker {H. rddula Ixvior, Haw. Aide 

 suhuldta, Salm. A. rddula major, Sahn). Somewhat 

 clustered: lvs. 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 

 attenuMta, Willd.). Cespitose: lvs. falcately spreading, 

 pointed, biconvex, 34 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. 



Sahn, Aloe §6, f. 12. B.M. 1345 (as A. radula.).—Vaiiea 

 into a form with smaller more scattered tubercles, var. 

 argyrostigma, Berger {H. subfasciata argyrostigma, 

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

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

 attenuata clariperla, Sakn), Sakn, Aloe §6, f. 12 ^. 



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

 Aide rddula, Jacq. A. rddula media, Salm. Ajncra 

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

 very long-acuminate, flattened above, ^i x 234-3 in., 

 green, with irregularly crowded minute tubercles on 

 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 lvs. with cartilaginous margin and keel not 

 tuberculate. 



13. albicans, Haw. (H. ferjs, Haw. H.ramifcra,'ila.w. 

 Aide dlbicans, Haw. A. margindta. Lam. Apicra 

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

 pungently acute, concavely triquetrous, 1 '^ x 3-4 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. Aide vires- 

 cens, R. & S.). 



BB. Lvs. thick, watery-pellucid. 



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



14. tesselata. Haw. {Aide tesseldta, R. & S.). Little 

 clustered: lvs. bristly toothed, spreading, mucronately 

 short-pointed, M x 13^ in., glossy dull green or red- 

 dening above, 5-nerved with an open network of 

 veins, the back scabrous with whitish points: infl. 

 1-13^ ft. high, simple; fls. nerved with green. Cape. 

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

 var. parva, Baker {Aide pdrva, R. & S.), smaller, with 

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

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

 in its more concave lvs. with incurved margin. 



15. recurva, Haw. {Aide recurva, Haw. A. andmala. 

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

 late, recurved, gradually acute, ^ixlH 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. Sakn, Aloe §7, f. 3. Berger 31. 



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



D. Upper face of lvs. abruptly truncately spreading. 



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

 Somewhat clustered : lvs. denticulate, erect, the smooth 

 acute tip almost truncately 3-sided, 3^ x 13 2. in-, 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. {Aide asperula, R. & S.). Little 

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

 scabrid above, 34 x 1^2 in-, green: infl. 1 ft. high, nod- 

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



18. retfisa, Haw. {Aide retiisa, Linn. Apicra retiisa, 

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

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

 3^x13^-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 lvs. it is var. m&tica, 

 Haw. 



19. turgida, Haw. {Aide tiirgida, R. & S.). Cespitose: 

 lvs. subentire, ascending, the acute smooth biconvex 

 or 3-sided lvs. truncately spreading, tip 3- to 7-norved 

 and somewhat dotted, 3i x 34-/i in-, glossy light green: 

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

 Sakn, Aloe §9, f. 5. Berger 32. 



