582 LXVII. FICOIDEH (OLIVER). 
Ovary superior. 
Calyx gamosepalous. 
Dehiscence loculicidal. 
Stamens wo. Ovules2-m . . . . . - « «+ + 8. Amzoon. 
Stamens in pairs. Ovules solitary . . . . . . 4 Gavenia. 
Dehiscence circumsciss. 
Ovary 2-3-5-celled. Stamens om. . .. . . . 5. Sesuvium. 
very t-Poslel: gg ee as ee SG. eee 
Calyx polysepalous. 
Fruit capsular. 
Ovules and seeds a. 
Leaves cauline alternate (staminodia ©). . . . 7. Oryota. 
Leaves radical, rosulate, or cauline pseudo-verticil- 
late (staminodia 0 orfew). .. . . . . . 8. MoLtueo. 
Leaves fleshy subterete (flowers umbellate) . . . 9, PHARNACEUM. 
ROOUIOS MOREE. cs es os es scr + + A PRO 
Fruit apocarpous; carpels Be Se ey Bae, 
Fruit syncarpous, 2-coccous. 
Contrbroadly winged=:.. 2 605. Se. Sw «Cf 12. SeaONVILLEA. 
Cocci not winged, smooth or tubercled . . . *. . 13. Limeum. 
1. MESEMBRYANTHEMUM, Linn. ; Benth. et Hook. f. 
Gen. Plant. i. 853. 
Calyx-tube adnate to the ovary; limb 5-(1-8-)lobed, usually un- 
equal. Petals oo, linear, inserted in the calyx-tube. Stamens “i 
multiseriate. Ovary inferior 5-(4—20-)celled; styles as many as cel . 
longitudinally stigmatose ; ovules oo. Capsule dehiscing loculicidally 
at the apex; seeds minute—Herbs or frutescent, erect or procumbent, 
leafy, fleshy. Leaves usually opposite, simple, thick and fleshy, very 
various in form; exstipulate. Flowers conspicuous, white, yellow oF 
rose. 
A large genus, principally South African, with a few scattered members in Austral- 
asia and northwards to the Mediterranean. ‘ 
Two forms, or perhaps two species of Mesembryanthemum, are in the Kew Herbers 
collected by Schimper in Abyssinia, but I prefer at present not to attach — 
them. ‘Lhey are both low herbs with branching woody stock and strongly pare 
trigonous, or cylindric-trigonous leaves. Flowers in one form distinctly poner 
with ee unequal calyx-lobes (No. 1783 and part of 788); the other with ob "ai 
sile flowers (No. 503). Richard also notices two species, which he does not describe 
length nor name, collected by Petit (Fl. Abyss. i. 316), one papillose, the other not. 
1. M. dimorphum, Welw. mss. (§ Hpapulosa, probably section 
Juncea). Glaucous glabrous decumbent tortuous herb, at length, after 
3 or 4 years, rigid pubescent with much reduced leaves, copious’ 
flowering ; decumbent branches terete, nearly the thickness of a 008° 
quill. Leaves opposite, subterete, Ist and 2nd year }-1 i. long» 
narrow-linear when dried; of older plants very narrow tortuous, 4-3 
in. Flowers small whitish terminating short unilateral leafy ram™ = 
Calyx-lobes subequal, rotundate or ovate, obtuse, nearly as long 
petals. Styles 5. Capsule 5-valved. 
Lower Guinea. Mossamedes, Dr. Welwitsch! 
2 M. dactylinum, Welw. Mss, (§ Epapulosa, Calamiforme). i 
very succulent annual herb 1-8 in. high, simple or with a short forking 
