460 cxxii. EUPHORBiACEE (brown). [Monodenium. 



Johes, 2-keeled down the back, rather thick in substance, with a very 

 sninute puberiilence, apparently green, veined with darker green at the 

 upper part. Involucre a little shorter than the bract-cup, 2-2J lin. 

 long, cup-like, open to half-way down in front, with an erect entire 

 slightly thickened margin, glabrous, slightly exceeding the quadrate 

 fringed -toothed inner lobes. Ovary exserted, reflexed, smooth, very 

 minutely papillate-puberulous, with a double crisped (always ?) keel along 

 each angle and a perianth at its base with 3 rounded or ovate lobes 

 J-| lin. long; styles united to the middle; stigmas thickened. 



xrile land. British East Africa: Kibwezi, Xfl.?.yw<?r, 717 ! f^'imha, Kdssner, 

 '729 ! 



18. M. herbaceum, Par in Engl. Jalirh. xlv. 241. Stem annual 

 from a tuberous rootstock, 2 ft. or more high, \ in. thick at the base, 

 herbaceous, glabrous. Leaves erect, thinly coriaceous, 1 J-2i in. apart, 

 those at the middle of the stem, 2-2 J in. long, J-^ in. broad, lanceolate 

 or the upper gradually smaller and becoming linear-lanceolate, about 

 equally narrowed from the middle to an acute apex and a cnneate sessile 

 base, entire, with the midrib acutely keeled beneath, glabrous on both 

 sides. Cymes small, |-| in. long, including the \-\ in. -long erect or 

 ascending peduncles, arising from the axils of reduced leaves |- J in. long 

 at the apex of the stem and forming an ovoid raceme 1-1 i in. long, 

 scarcely nodding, glabrous in all parts ; peduncles broader than thick, 

 with a wing on each side and l-o keels or ridges on the convex faces 

 between. Bracts free to the base, not overlapping at the margins, J-J in. 

 long, |-J in. broad, elliptic, elliptic-ovate, or suborbicular, acute or 

 obtuse and apiculate, with a wing-like keel down the back, rather thin, 

 apparently green suffused with rosy, with the veins sometimes scarcely 

 evident, at others sub-conspicuous. Involucre >, in. long, open half-way 

 •down the front, with an erect slightly thickened entire margin, overtop- 

 ping the quadrate fringe-toothed inner lobes. Ovary exserted and 

 leflexed, smooth, grooved down each angle, with a perianth of 3 minute 

 scarcely evident rounded lobes ; style trifid to the middle or below, with 

 the branches shortly bifid ; stigmas slightly thickened. 



South Central, l^elgian Congo: in a swamp jit Luonfp, KUssner, 2489! 



19. M. Gossweileri, X. E. Br. Stem probably annual from a 

 perennial rootstock, 3 in. long in the type, but perhaps taller, 2-3 lin. 

 Ihiek when dried, perhaps somewhat fleshy, glabrous, greyish, with a 

 scurfy appearance from shrinkage. Leaves f-lj in. long, \-\ in. broad, 

 •or perhaps larger, fleshy, oblanceolate-obovate, subacute, cuneately taper- 

 ing from about \ below the apex into a short petiole, more or less crenu- 

 late and somewhat crisped-undulate on the margins, glabrous on both 

 sides; midrib flat above, with a conspicuous wing-like minutely denticu- 

 3ate keel beneath. Cymes in the axils of the upper leaves, about 1 J in. 

 long, once or twice forked, with the peduncles and main branches each 

 -5-(I lin. long. Bract-cup about 4 lin. long and as much or more in diam., 

 lobed behind, with two keels down the back, probably green, with 

 distinctly forked venation, lobes very obtusely rounded at the apex, 



