260 



ALOE 



ALOE 



distinct segms. green-nerved. Cape. DC., PL Gr. 85. 

 Salm, Aloe 22, f. 1. B.M. 472. Stephenson & Church- 

 hill, Med. PL 110. Berger 113. Varies in a form with 

 more armed, broader, shorter and straighter Ivs., var. 

 sazigena, Berger. 



37. purpurascens, Haw. (A.sinuata, Thunb.? A. per- 

 foliata purpurdscens, Ait. A. socotrina purpurdscens, Ker. 

 A. rambsa, Haw.). Cespitose, nearly acaulescent: Ivs. 

 upcurved, gradually tapered, green, sometimes more or 

 less striate, and white-dotted on the back below, 

 2J^ x 18-20 in., the margin with moderately long con- 

 nate hooked purplish teeth: inn. 3 ft. high; fls. 1J^ in. 

 long, light red, the distinct segms. paler and green- 

 nerved. Cape. Salm, Aloe 22, f. 2. B.M. 1474. 

 Berger 113. Winkler, Pharm. Waarenk. 182. 



cc. Trunk finally 10-20 ft. high: not cespitose. 

 D. Inf.. a simple or forked raceme. 



38. arborescens, Mill. (A. perfoliata arborescens, 

 Ait. A. arbbrea, Medikus. A.fruticdsa, Lam.? Catevdla 

 arborescens, Medikus. A. arborescens Mitteri, Berger). 

 Trunk simple, finally 10-15 ft. high, clothed at top with 

 the withering Ivs.: Ivs. sinuately spreading, gradually 

 narrowed, dull green, 2 x 24 in., the repand margin 

 with rather long cartilaginous white prickles: infl. 

 elongated; fls. about 1J^ in. long, red, with distinct 

 segms. Cape(?). B.M. 1306. Hot. Repos. 468. Berger 

 115. Varies into numerous forms: green-lvd., with 

 shorter trunk and long Ivs., var. Ucrise, Berger (A. 

 Uarix, Terr.), Salm, Aloe 26, f. 3. G.W. 10, p. 13. 

 Berger 116, 117; or shorter Ivs., var. viridifdlia, Berger, 

 Berger f. 117; or glaucous or blue-lvd., with branched 

 infl., var. natalensis, Berger (A. natalensis, Wood & 

 Evans), Berger 115; or simple infl. with normal fls., 

 var. frutescens, Link. (A. frutescens, Salm-Dyck), 

 Berger 120; or fls. 2 in. long, var. pachythyrsa, Berger. 

 Berger 118, 119. 



39. pluridens, Haw. (A. Atherstdnei, Baker). Trunk 

 unbranched, finally 8-10 ft. high: Ivs. as in the pre- 

 ceding but glossy and somewhat striate, 2}^ x 16 in.: 

 infl. branched; fls. 1^ in. long. Cape. Berger 121. 



DD. Infl. a, candelabrum-like forking panicle, with 

 upcurved nearly sessile fls. 



40. africana, Mill. (A. africana angustior, Suns. A. 

 Bolusii, Baker. Pachydendron africdnum, Haw. P. 

 principis, Haw. P. angustifdlium, Haw.). Trunk sim- 

 ple, finally 20 ft. high: Ivs. few, rather separated, sin- 

 uately spreading or recurved, triangular-oblong, glau- 

 cous, 2j^-3 x 20-24 in., with rather large triangular 

 horny marginal teeth: infl. 2 ft. high; fls. 1^ in. long, 

 yellow, with segms. shorter than the oblong tube. Cape. 

 Salm, Aloe 27, f. 2. B.M. 2517. Berger 128. 



41. candelabrum, Berger, differs chiefly in having 

 the fls. red. Cape. 



BB. Stamens much longer than the rather ample short 



perianth: not cespitose. 

 c. The Ivs. smooth, toothed: infl. racemose or forked. 



42. rubroviolacea, Schweinf. Not branched, scarcely 

 3 ft. high: Ivs. spreading, acuminately triangular, 

 purplish-pruinose, 4x24 in., the reddish margin with 

 rather distant curved dark-pointed moderate teeth: 

 infl. often forked, 2 ft. high; fls. IJi in. long, light red, 

 the segms. rather longer than the tube. N. Afr. B.M. 

 7882. Berger 122, 123. Hybrids: A. rubroviolacea x 

 A. supralsevis. 



43. Salmdyckiana, Schult. Branching, low: Ivs. 

 arcuately spreading, gradually tapered, glaucous, 

 3 x 30 in., the yellowish margin with rather large car- 

 tilaginous teeth : infl. 2-3 ft. high, paniculate ; fls. 1 J-l Ji 

 in. long, red, the green-tipped segms. nearly distinct. 

 S. Afr. Salm., Aloe 27, f. 1. Berger 125, 126. 

 Varies in a less dense form with stouter trunk, var. 

 fulgens, Berger (A. fulgens, Tod.), Tod., Hort. Pan. 



33. Hybrids: A. x Winteri, Berger (A. Salmdyckiana x 

 A. arborescens frutescens), A. xVarvdrii, Borzi (A. Salm- 

 dyckiana xA. cxsiaf). 



44. drepanophylla, Baker. Trunk slender, simple, 

 9-12 ft. high: Ivs. very narrowly lanceolate-attenuate, 

 glaucous, 1-1 J^x 24-36 in., the cartilaginous margin 

 minutely denticulate: infl. \% ft. high; fls. scarcely 

 1 in. long, from red becoming whitish, green-lined, 

 with nearly distinct segms. Cape. Berger 127. 



45. speci&sa, Baker. Taller, 18-25 ft. high, branch- 

 ing: Ivs. very numerous, spreading, gradually tapered, 

 blue, the rosy margin with minute prickles: fls. 1J^ 

 in. long, from rosy becoming whitish, green-nerved, 

 the segms. about equaling the tube. N. Afr. Berger 124. 



cc. The Ivs. often armed on one or both faces, toothed: 

 st. nearly simple: infl. paniculately forked. 



46. supralaevis, Haw. (A. Galplnii, Baker. Pachy- 

 dendron supralssve, Haw.). Not branched, 3-6 ft. high: 

 Ivs. numerous, upcurved, lanceolate, glaucesccnt, 

 4-6 x 20-30 in., prickly on the back only, the marginal 

 teeth rather large, reddish brown: infl. 3 ft. or more 

 high; fls. 1-1 J/6 in. long, red-orange, becoming yel- 

 lower, with segms. longer than the tube. Cape. Salm, 

 Aloe 27, f. 6. Berger 129, 130. Varies in a form with 

 few if any prickles on the backs of Ivs., var. erythro- 

 carpa, Berger. Berger 130. 



47. ferox, Mill. (A. perfoliata ferox, Ait. A. muricdta, 

 Haw. A. horrida, Haw. A. pseudoferox, Salm-Dyck. 

 A. subferox, Spreng. Pachydendron ferox, Haw. P. 

 pseudoferox, Haw.). Exceptionally forked, 3-10 ft. 

 high: Ivs. numerous, curved, lanceolate, glaucous, be- 

 coming reddish, 4-5 x 28 in., more or less prickly on 

 both faces, the purplish margin with rather large red- 

 brown teeth: infl. 4 ft. high; fls. \% in- long, greenish 

 yellow, with smoky-tipped segms. longer than the 

 rather narrow tube. Cape region. B.M. 1975. Berger 

 131, 132. Salm, Aloe 27, f. 5. Varies in a whiter-lvd. 

 form with brighter yellow black-tipped fls., var. xan- 

 thostachys, Berger. 



ccc. The Ivs. smooth, prickly^margined: trunk very large, 

 dichotomously branched, not cespitose: infl. tri- 

 partite. 



48. dich6toma, Linn. (Rhipidodendron dichdtomum, 

 WilkL). Stout flat-topped tree, 25-30 ft. high, repeated- 

 ly forked as in Dracxna Draco: Ivs. nearly flat, recurved- 

 spreading, lanceolate, glaucous, 2-3 x 6-10 in., the yel- 

 low-brown margin minutely prickly: infl. 1 ft. or more 

 high; fls. very stout, 1J^ in. long, yellow, with broad, 

 nearly distinct segms. Cape. G.C. 1873, p. 712; 1874, 

 p. 567. Berger pi. 1. and f. 135. Varies in a smaller- 

 fid, form with shorter stamens, var. montana, Berger 

 (A. montana, Schinz). 



49. Bainesii, Dyer. Large flat-topped tree, 30-60 

 ft. high, copiously branched: Ivs. concave, recurved- 

 spreading, elongated, green, 2-3 x 24-36 in., the pale 

 margin with rather small teeth: infl. 1 ft. or more high; 

 fls. !%-!% in. long, yellowish red, with segms. shorter 

 than the tube. Cape region. G.C. 1874, p. 568. B.M. 

 6848. Berger 136, 137. Varies in a broader-lvd. form 

 with minute marginal prickles, var. Barberae, Baker 

 (A. Bdrberx, Dyer. A. Zeyheri, Hort.), G.C. 1874, 

 p. 568. 



AAAAA. Lvs. rather few, strictly oblong, succulent, 2- 

 ranked, minutely prickly near the very obtuse tip 

 only: st. stout, evident: infl. unbranched; fls. 

 oblong; stamens scarcely protruded. 



50. plicfitilis, Mill. (A. dteticha plicdtilis, Linn. A. 

 linguiformis, Linn. A. flabellifdrmis, Salisb. Kumara 

 disticha, Medikus. Rhipidodendron dlslichum, Willd. R. 

 plicdtile, Haw.). Somewhat repeatedly forking, 3-10 ft. 

 high, not cespitose: Ivs. flat or 2-edged as in Gasteria, 

 ascending, glaucous, 1-1^x8-16 in., the narrow car- 

 tilaginous margin minutely somewhat denticulate 



