Mesembryanthemum.| MESEMBRYACE& (Sond.) ~ 413 
100. M, filamentosum (L. Spec. 694); stem subterete, branches short, 
decumbent; leaves triquetrous, subacinaciform, crowded, thick, dotted, 
longer than the internodes, roughly serrulated at the angles; flowers 
purplish ; calyx lobes twice shorter than the acute petals. Dullen. Hlth. 
t. 212. f. 273. Salm Dyck, l. c. fase. 5. t. 14. 
Has. Cape of Good Hope. 
Stem angular. Leaves 1% inches long, 3 lines wide, equally triquetrous, the 
carinal angle in the middle subdilated. Peduncle 1 inch, with two large bracts. 
Calyx lobes subtriquetrous. Petals linear-lanceolate. 
101. M. serrulatum (Haw. Misc. 77. Syn. 239.) ; stem shrubby, when 
young erect ; branches ascending ; leaves triquetrous, subacinaci- 
form, rather glaucous, thick, with cartilaginous, minutely serrulated 
angles ; flowers purplish ; petals bidentate, « little longer than the calyx- 
lobes. Salm Dyck, l. ¢. t. 15. 
Has. Cape of Good Hope (v.v.) 
Nearly allied to the foregoing, but the flowers are much smaller on longer pedun- 
cles, with smaller bracts, and the petals cuneate and emarginate. Leaves 14 inches 
long, usually longer than the internodes. Peduncle 24-3 inches long. 
102, M. rubricaule (Haw. Syn. 239) ; stem and branches erect, mostly 
reddish ; leaves subcompressed triquetrous, subincurved, glaucous-green, 
with cartilaginous, serrulated angles ; flowers purplish ; petals lanceo- 
late, acute, slightly longer than the calyx-lobes. Salm Dyck, 1. ¢. t. 16. 
Has, Cape of Good Hope. 
By the straight reddish stem and not emarginate petals it is distinguished from 
M. serrulatum. Leaves 1-1} inches long, not acinaciform, usually shorter than the 
internodes. 
§, 21, HETEROPETALA, Salm Dyck. (Megacephala, Haw. Forficata, 
DC.) Stem frutescent, branches adscendent, 2-angled. Leaves opposite, 
triquetrous, compressed, with the carinal angle drawn out, sometimes 
lacerately-toothed. lowers ternately disposed, lateral ones often abor- 
tive, pedunculate, reddish or whitish ; petals biformed, subulate and 
linear-lanceolate. Calya 5-cleft. Stigmas 5. (Sp. 103-107.) 
103. M. lacerum (Haw. Rev. 119); stem erect, branches erectly 
spreading ; leaves rather acinaciform, acutely triquetrous, glaucous ; 
carinal angle lacerately-toothed ; calyx compressed, with lacerate mar- 
gins; petals numerous, linear-lanceolate, longer than the calyx. Salm 
Dyck, 1. ¢, fasc. 4.t.9. M. carinatum, Vent. Malm. t. 109. M. gladiatum, 
Jacg.! hort. Vind. t. 111. M. acinaciforme, DC. Pl. Grass. t. 89. M. fal- 
catum, Thunb. ! Fl. Cap. 422. 
Has. Cape of Good Hope. (Herb. Thunb. Vind.) 
Stem 2-3 feet hi Leaves 14-2 inches long, 4-5 lines wide, mucronate. Flow- 
ers often solitary, 2-edged, Calyx subturbinate, lobes triquetrous. Petals 
covering the stamens ; inner ones short, the exterior longer than the calyx, rose- 
104, M. heteropetalum (Haw. Syn. 294. Misc. 67); stem and branches © 
erect-spreading ; leaves glaucous, subfalcate, compressed-triquetrous, 
carinal angle lacerate; petals unequal, shorter than the calyx, Salm 
Dyck. l. c. fase. 3. t. 17+ 
