Mr. J. Miers on some genera of the Icacinacese. 43 



on a petiole barely exceeding 3 lines in length. The panicles 

 are scarcely 9 lines long ; the calyx is small, obsoletely 5 -toothed ; 

 thefive petals are linear, with a long inflected apex; thefive stamens 

 are equal to them in length, with broad, thick, fleshy filaments, 

 the internal keel, upper margins and summit being closely 

 fringed with very long clavated hairs, which are three times the 

 length of the anthers; these consist of two oval lobes, fixed 

 together by a point near the apex, where they are attached to 

 the filaments, the lobes below being separated by the summit 

 of the keel, so that they rest in two cavities in the apex of the 

 filaments, as occurs in most species of this genus ; the ovarium 

 is globular, somewhat 10-lobed, depressed at the summit, and 

 deeply umbilicated in the centre, in the cavity of which, the ob- 

 solete style and stigma, forming a depressed lobe, lie concealed ; 

 the body of the ovarium is fleshy, with no apparent cells*. 



21. Stemonurus Walkeri, n. sp.; — ramulis teretibus, subdicho- 

 tome divisis ; foliis oblongis, imo vix acutis, apice valde ob- 

 tuso et hinc subito attenuatis, utrinque glaberrimis fuscis et 

 concoloribus, crasso-coriaceis, supra nitido-opacis, costa sul- 

 catis, nervis immersis, subtus costa crassiuscula nervisque 

 tenuissimis prominentibus, margine subrevoluto, petiolo bre- 

 viusculo ; racemo axillari, brevi, paucifloro, floribus ^ 4-meris, 

 9 5-meris, filamentis crassis, apice sub-breviter ciliolatis. — 

 Ceylon. — v. s. in herb. Hook. ( ^ Col. Walker, ? Gardner y 101). 



This species is distinguishable by its much darker and more 

 fleshy, smooth leaves, which are nearly 4 inches long, and 1^ inch 

 broad, on a rather stout petiole, about 4 lines in length ; the 

 calyx is small, and rather deeply 5 -toothed; the male flowers 

 have oblong petals, with an internal longitudinal keel, and a long 

 inflexed apical joint, four stamens equal to them in length, with 

 very broad, thick, fleshy filaments, which are furnished on the 

 upper margin with a row of clavate hairs, scarcely longer than 

 the anthers; the pollen is acutely 3-angular; the ovarium is 

 sterile, oblong, with a rather long, conical, hollow style, toothed 

 at its apex. The female flowers have five thick fleshy petals, and 

 five stamens formed like the others, but the cells are filled with 

 grumous matter; the ovarium is nearly the length of the 

 stamens, somewhat 5 -grooved, globular in its lower moiety, 

 smaller and cylindrical in its upper half, which presents here 

 somewhat excentrically, a single cell with two distinct ovules 

 suspended from near the summit, on the side towards the axis : the 

 apex of the very short ovarium is crowned with a conical, 5-lobed, 



* A representation of this species, with the details of its floral structure, 

 will be given in plate 13 of the ' Contributions to Botanj',' &c. 



