2M-2 



MKSKMRUYANTUKMrM 



MESEMBRYANTHEMUM 



fls. large, yellow or purplo, the st:uuoiis S: fr. edible, 

 boiiiK one of the Hottentot figs. — Gixnvs well on the 

 eea-oliffs in !>. Enplaiul, making long iianging n\a.sses 

 (On. oo, p. '2'Sci. with pietnre'i; also useil in Calif, and 

 clst'where to hold s:md. and to provide ground-cover. 

 Gn. 71, p. IWO. 



EE. Braiichts angular or terete; Ivs. subadnadforni, u'itli 



strrulalcil angles. 



19. serrulatum, Haw. 8t. shrubby, when yomig 



ereet : branches luseending: Ivs. 



triquetrous rather glaucous, 



thick: fls. |)uri)lish; petals biden- 



talc, a little longer than the 



alvx-lobes. 



2366. Mesembryanttiemum auxeum. ( X H) 



DD. St. or at least the brandies, erect or prominently 



ascending. 



E. Fh. yelloiv, orange or copper-color. 



20. aurantiacum, Haw. St. becoming 1 ft. or more 

 high, much branched, sometimes decumbent at base, the 

 branches somewhat compres-sed: Ivs. 1 in. or less long, 

 smooth and glaucous, bluntly triquetrous: fls. orange, 

 with petals %m. long and in about 3 series. 



21. a&reum, Linn. I'ig. 2306. Larger: Ivs. l}2-2 

 in. long, cylindrically tri(|uetrous, .smooth and glaucous, 

 mucronate: fls. golden, 2 in. acro.ss, the petals in many 

 series. B.M. 262. — In this and the last, the lower Ivs. 

 are often nearly connate at the base. 



EE. Fls. rose-color or purplish. 



F. Lvs. triquetrous, carinal angles draum ovi, often 

 lacerate: branches $-edged. 



22. mutabile, Haw. With straw-color or reddish 

 tortuou.s, erect branches: lvs. about l^^iTi- long, com- 

 pres.sed-triquetrous, incurved, the keel entire, apex 

 acute: fls. mostly solitary on an upwardly thickened 

 peduncle, rftse-color, the inner short petals pale yellow. 



23. inclatidens, Haw. Distinguished from the last 

 by .scimitar-shaped lvs. and broader pet als : lvs. crowded, 

 green, compres.sed-triquetrou.s and scimitar-shaped 

 (thicker on one edge). 



24. lacerum, Haw. St. erect, branches .spreading: 

 lvs. glaucous, 13^2 in. long: fls. often solitary, large; 

 petals numerous, inner ones short, exterior ones longer 

 than calyx, rose-colorod. 



2.5. heteropetalum, Haw. St. and branches erect- 

 spreading: lvs. glaucous, subfalcatc: fls. small, solitary, 

 rarely geminate; petals pale red or whitish, interior 

 ones very short. 



FF. Lvs. svbtriquetroux, elongatefl, acute, very smooth: 

 branches erect, rigid. 



26. blandum, Haw. Two ft., with numerous 

 branches: lvs. distant, 2 in. or less long, comi)rc.ssed- 

 triquetrous, but with equal sides, narrow, minutely 

 dotted, acutish: fis. 2 'in. across, pale rose, the petals 

 toothed. B.R. 582. L.B.C. 6:599. 



FFF. Li'.s. xiiliroiimilr, lri(iiiilrous, ii'ith equal sides, 

 ijniihiiiUi/ aUiiiutitfil: branches subcrecl. 



27. spectabile, Haw. St. prostrate, but branches 

 ascending: lvs. 2-3 in. long, crowded, glaucous, in- 

 curved and s])reading, triquetrous, attenuate and 

 mucronate: fls. purplish; petals 1 in. long, the inner 

 somewhat shorter. l?.M. 396. G.W. 14, p. 649. 



WW. Lr^. falcdk-rccurned, with obtuse angles. 



28. falciforme, Haw. One to 2 ft., branches sjiread- 

 ing: lvs. much crowded, triquetrous, angles acute: fls. 

 in 3's or solitarj', 1 ' 2 in. diani., showy; petals in many 

 series, lanceolate; filaments white. J. II. 111. ,'50:493. 



29. roseum, W'illd. To 2 ft. high, branches spread- 

 ing, leafy: lvs. attenuate on both ends, incurved: fls. in 

 3's or solitary, showy; ))etals iiale rose-colored, in two 

 series. Gn. 62, ]i. 363. — One of the common species in 

 t'alif., extensively u.sed in parkings and in terraces 

 where it Ls ditlicult to secure a grass sod, and for cover- 

 ing rocks behind retaining-walls. If given water, the 

 foliage has a rather dark green color, but if grown with- 

 out watering it is grayish green and the. fls. are some- 

 what smaller although not less brilliant. 



FFFFF. Lvs. compressed-triquetrous, with dilated keel near 

 recurved apex, not toothed. 



30. caulescens, Mill. Shrub to 1 ) 2 ft.: lvs. incurvate- 

 crect, glaucous, acutish, with the sides obtuse, toothed 

 and the keel entire: fls. in 3's, or often soUtaxy; petals 

 obtuse, emarginate. 



31. muricatum. Haw. St. suberect: plant bluish: 

 lvs. less than ' 2i'i- lo"g, somewhat incurved, deltoid 

 and toothed, verj' glaucous: fls. small and fragrant, the 

 petals acute. 



cc. Foliage-li's. truly connate or perfoliate. 

 D. Li's. iriquHroiui. 



32. uncinatum, Linn. St. diffuse, much branched: 

 lvs. sheathing at base, glaucous-green, punctate, short 

 and equal-sided, triquetrous, often furnished with 1 or 2 

 spines underneath at the apex: fls. on short, thick 

 peduncles, } -aw. diam., rose-colored. Hardy in England. 



33. acutangulum, Haw. St. shrubby, with rigid and 

 erect branches: lvs. sheathing, V2in. long and about as 

 long as the internodes, glaucous green, triquetrous, 

 compressed near the apex, somewhat incurved: fls. 

 white, small, in a panicle. 



DD. Lrs. elongated, subulate or somewhat cylindrical. 



34. stipulaceum, Liim. Dwarf, with erect, decussate 

 branches: lvs. lJ'^-2 in. long, very slender, crowded, 

 spreading and recurved, very glaucous: fls. in the axils, 

 mostly solitary, purplish. 



35. Lehmaunii, Eckl. & Zeyh. Branches compressed, 

 ascending: lvs. si)reading, subconnate, turgidly tri- 

 quetrous, without dots, very smooth, glaucous: fls. 

 terminal, solitary, on short peduncles, 1-13^ in. diam.; 

 calyx 6-cleft; petals in many rows, interior ones shorter, 

 I)ale yellow. 



AA. Papulosa: Plant usually bearing glittering papillx, 



vesicles or projections on sts. arid lvs., — hence the 

 ■popular name ice-plant (species 36-51). 

 B. Lvs. flat. 

 c. Stigmas 5. 

 D. Root annual or biennial {cult, as annuals). 



36. crystaUinum, Linn. Ice-Plant. Fig. 2367. A 

 common plant in winflow-gardens and hanging-baskets 

 and readily grown from secfls (which are offered by 

 seedsmen), ])ro<'unibent: lvs. flat, fleshy, ovate or long- 

 spatulatc, usually clasping, undulate, covered with 

 glistening dots or elevations: fls. small, whitish or vary- 

 ing to light ro.se-color. ,S. Afr., Greece, Ganarj' Isls., H. 

 Calif. G. 2:147. — Grown for its glistening foliage. Fls. 

 oijen in the sun. 



