none. Ovary partly superior or shortly conical at the top, shal- 

 low, convex beneath, 6-celled; placentas on the floor of the cells, 

 Cansule slightly convex, v/ith 6 gaping ridges on the top, flattish 

 beneath, with 5 valves and cells; valves v/ith rather distant end 

 s''ightl3'' diverging; exranding-keels and broad, membranous, acute, 

 marginal wingsT cells imperfectly roofed with ganing, membranous 

 flexible cell-wings, no tubercle at the opening. Seeds very numer- 

 ous in each cell, minute, globose-ovoid, with a nipple at one end, 

 smooth . 



Species 1, native of Geres Division in South Africa. 



The name is derived from the Greek, didymos, twin, and aotos, 

 a flower, in allusion to the pair of flowers, one borne on each 

 side of the plant. 



D. lanidiformis, N. E. Br. (Fig. 73,74,75).— Plant about 1^ 

 inch high, stemless. Leaves normally two to a plant or four when 

 making a new growth, opposite, united at the base, up to about 

 1 inch long, l-li" inch broad and *-! inch thick, with the flat 

 face broadly rhomboid-ovate in outline, shortly and rather abruptly 

 acute, strongly keeled on the back, smooth, glabrous, grey-green, 

 reddish-brown, or purrlish tinted, and covered with a glaucous 

 film, not dotted; when the plant is at rest the leaves are more 

 or less closed together. Peduncles lateral, one oneach side of 

 the plant, produced from the axils of the old pair of leaves; 

 very short,' bearing at first a much compressed obcordate or short- 

 ly 2-lobed or notched fleshy body keeled dovm each side, formed by 

 a pair of stout bracts fused together for most of their length; 

 from this body the flov;er arises after the resting period is over 

 and the plant begins to develop a new pair of leaves. Pedicel 

 about 6-10 lines long, l-g- line thick, terete, smooth, glabrous, 

 green. Calyx subequally 6-lobed, glabrous, ovary -part shallov;, 

 convex beneath; lo es 3|-6 lines long, 2^-3^ lines broad, ^deltoid- 

 ovate or ovate-oblong, obtuse, spreading, Corolla about le inch 

 in diameter, opening about 3 p.m.; petals numerous, in about 3 

 series, free, 4-7^ lines long and about 1/3 line broad, cuneetely 

 linear, obtuse or subacute, white or vv'hite tinted with rose. Sta- 

 mens erectly spreading, not collected into a bundle; filaments 

 bearded at the base, dark rosy; anthers yellov:ish-white. Stigmas 

 6, erect, v;ith recurved tirs, stoutly subul?te, tapering to a 

 fine acute point and plumose or lacerate on the inner face; style 

 none. Ovary conical and 6-grooved on the top, shallow, 6-celled. 

 Cansule 5-7 lines in diameter, slightly convex and v/ith 6 gaping 

 ridpes on the top formed by the separated uptruned edges of the 

 6 valves, flattish beneath; valves about 2 lines long and 2i lines 

 broad, deltoid, nallid within; expanding-keels orange-brown, rather 

 distent and slightly diverging, with rat" er broad, membranous, 

 pallid wings about as long as the valve and ending in acute points. 

 Cells imperfectly and flatly roofed with gaping, membranous, flex- 

 ible, pallid cell-wings that easily permit the seeds to escape. 

 Seeds 200 or more (counte) in each cell, about -i-line long, obliqu- 

 ely pear-shaped, smooth, pale brownish, with a darker nippe. 



Iv'esembryanthemum anidiforme, I*Iarlloth in '^rans. ^oy. Sqc. S. 

 Afr., vol. rT'., T>. 137 and 138, with fig. 



Geres Division^ Ceres ^^aroo, %rloth. 



This interesting plant in general appearance has much the 

 habit of Fleiospilos Bolusii, and v/ould seem allied to that genus, 

 but the structure of its flov/ers (Fig. 73) and fruit is altogether 

 different, and its mode of producing its flowers (one on each side 



