ALOE 



ALOE 



259 



AAA. Lv. rather numerous, spirally arranged on a length- 

 ened St., acute or pungent. (27-39.) 

 B. The Ivs. rather separated, not armed on the back. 

 c. St. weak: Ivs. thin, finely prickly on the margin, dis- 

 tinctly separated, with perfoliate striate sheaths: 

 inf.. short, racemose. 



27. ciliaris, Haw. St. elongated, scrambling, more 

 or less verticillately branched: Ivs. elongated lanceolate, 

 striate, coarsely white-denticulate, spreading, about 

 1 x3-6 in.: infl. &-8 in. high; fls. \y s in. long, bright 

 red, the greenish segms. much shorter than the cylindri- 

 cal tube; stamens little protruding. Cape. Salm, Aloe 

 25, f. 1. Berger 9, 97. Henslow, S. Afr. PL p. 269. 

 Varies into a smaller-lvd. form with nearly entire 

 If.-bases and smaller fls., var Tidmarshii, Schoenl., 

 and a form with broader Ivs., var Fl&naganii, Schoenl. 

 Hybrids: A.xde Lxtii, Radl. (A. ciliaris xsuccotrina). 



28. striatula, Haw. (A. Macbwanii, Baker. A. 

 inirnntiaca, Baker). Resembling A. ciliaris: Ivs. longer, 

 narrowly triangular, minutely denticulate: fls. from 

 reddish becoming yellow or orange, with longer segms. 

 and long-protruding stamens. Cape. Monatsschr. f. 

 Kakteenk. 16, p. 4. Berger 99, 100. 



cc. St. stouter: Ivs. rather fleshy and close: infl. 

 taller, panicled. 



29. Hildebrandtii, Baker. St. slender, elongated: 

 Ivs. lanceolate-attenuate, 2 x 6-9 in., somewhat thick, 

 glaucous, sometimes white-blotched as are the short 

 sheaths, with rather small yellow marginal teeth: infl. 

 \ l /L ft. high, nearly sessile; fls. 1 in. long, red with 

 more or less yellow- or green-marked segms. about 

 equaling the somewhat constricted tube. Trop. Afr. 

 B.M. 6981. Berger 104. 



30. inermis, Forsk. (A. Luntii, Baker). St. short: 

 Ivs. recurved-spreading, gradually narrowed, 2 x 12 in., 

 fleshy, very pale green or reddish, blade and sheath 

 mottled with white at least when young, entire: infl. 

 2-3 ft. high, open; fls. 1 in. long, rosy, with green- 

 lined yellowish segms. shorter than the somewhat con- 

 stricted tube. Arabia. B.M. 7448. Berger 105. 



BB. The Ivs. more fleshy, with short, nearly concealed 



sheaths: infl. often panicled. 

 c. Racemes elongated: Ivs. not armed on back. 



31. Kirkii, Baker. St. short: Ivs. crowded, lanceo- 

 late-acuminate, 2 x 9-12 in., somewhat thick, glossy, 

 green or reddish, with rather coarse confluent reddish 

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

 red with yellowish base and greenish segms. shorter than 

 the cylindrical tube. Zanzibar. B.M. 7386. 



cc. Racemes short: Ivs. more or less armed on back as 



well as margin. 

 D. Erect: Ivs. elongated. 



32. sororia, Berger. Lvs. elongated, triangular, 

 2J^ x 18 in., dull green, brown-striate, with variable 

 whitish marginal teeth alternately larger and smaller: 

 infl. about 2 ft. high; fls. 1J^ in. long, light red, with 

 segms. longer than the tube. Cape. 



DD. Prostrate: Ivs. short and broad: infl. often forked. 



33. mitriffirmis, Mill. (A. xanthacdntha, Salm-Dyck). 

 Fig. 172. Lvs. upcurved, ovate, acute, 2-3 x 4-6 in., glau- 

 cous, somewhat prickly toward the tip beneath, with 

 large and strong yellow or brown marginal teeth: 

 infl. 1 ft. or more high; fls. 2 in. long, bright red with 

 recurving, paler, nearly distinct segms. Cape. DC., PI. 

 Gr.99. B.M. 1270. Salm, Aloe 24. f. 3. Berger 108. 

 Very polymorphic, the broad-lvd. typical form, with 

 dorsal teeth on the keel only, varying into a form with 

 smaller marginal teeth, those on the back continuing to 

 the apex, var pachyphylla, Baker; another, in which 

 they stop short of the apex, var. xanthacantha, Baker 

 (A. xnnlhacdntha, Willd.), Salm, Aloe 24, f. 4; and a 



third with acuminate Ivs., var. Commelinii, Baker 

 (A. Commelinii, Willd. A. mitriformis humilior, Haw.), 

 Salm, Aloe 24, f. 5: narrower-lvd. forms with short 

 and broad yellow teeth, var. flavispina, Baker (A. 

 flavispina,, Haw.), Salm, Aloe 24, f. 2; or long subu- 

 late white teeth, var. albispina, Berger (A. albispina, 

 Haw.): and a variant of the type with scattered teeth 

 over the back of the broad Ivs., var. spinuldsa, Baker 

 (A. spinuldsa, Salm), Salm, Aloe 24, f. 6. Berger 

 109. 



34. nobilis, Haw. (A. mitriformis spindsior, Haw.). 

 Lvs. lance-deltoid, 2 x 4-6 in., green, somewhat prickly 

 toward the tip beneath, with large, strong, confluent, 

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

 red, with recurving distinct segms. Cape. Salm, Aloe 

 24, f. 7. Berger 109. 



172. Aloe mitriformis. (No. 33) 



35. distans, Haw. (A. mitrxformis angustior, Lam. 



A, perfoliMa brevifplia. Ait. A. brevifolia, Haw. A. 

 mitriformis brevifblia, Sims. A. mitriformis humilior, 

 Willd.). Branched and prostrately spreading: Ivs. 

 ascending, broadly ovate, acute, 2 x 3-3 J^ in., glaucous, 

 somewhat mottled below and prickly toward the tip 

 beneath, with strong, dark-tipped yellow marginal 

 teeth: infl. 1J^ ft. high; fls. 1% in. long, red, with re- 

 curving greenish segms. about as long as the cylindrical 

 tube. Cape. Salm, Aloe 24, f. 1. B.M. 1362. Berger 

 107. 



AAAA. Lvs. numerous, elongated, succulent, acute or pun- 

 gent, spirally crowded at end of the prominent, 

 sometimes tall trunk. (36-49.) 



B. Stamens scarcely protruded: fls. narrow: Ivs. smooth. 



c. Trunk scarcely 4 fl- high: infl. usually racemose. 



36. succotrina, Lam. (A. soccotrlna, DC. A. perfoli- 

 ata soccotrlna, Ait. A, socotrina, Steph. & Church. A. 

 vera, Mill.). Scarcely cespitose, the dichotomously 

 branched st. at length 3-4 ft. high: Ivs. falcately up- 

 curved, gradually narrowed, pale or glaucous, some- 

 times white-blotched toward the base, lj^-2x 15^-20 

 in., the margin serrate with small connate white prick- 

 les: infl. 2 ft. high; fls. 1J in. long, light red, the 



