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



disciform process^ equal to it in diameter, the summit being ter- 

 minated by five very minute teeth*. 



22. Stemonurus affinis, n. sp. ; — ramuHs tortuosis, nodosis ; foUis 

 elhpticis, utrinque subacuminatis, apice obtusiusculo attenua- 

 tis, opacisj supra in costam sulcatis, subtus palUdioribus, costa 

 nervis venisque prominulis, margine subrevoluto, petiolo tenui 

 teretiusculo superne sulcato ; panicula axillari, pauciflora, 

 petiolo vix longiore, pedicellis pubescentibus, calyce 5-dentato 

 petalisque oblongis breviter apiculatis glabris, staminibus 

 iisdem vix sequilongis, filamentorum apicibus carinaque interna 

 longissime ciliatis, ovario fertili, longitudine staminum, longe 

 cylindrico, paullulo incurve, apice pulvinato. — Malacca. — v. s. 

 in herb. Hook. (Griffiths). 



This species is near S. polymorpha, but differs in several 

 particulars. It appears to be a remarkably knotty and scrubby 

 tree; its leaves are about 3|^ inches long, 1^ to If inch broad, on 

 a petiole 4 or 5 lines in length ; its panicles are 6 or 8 lines 

 long, and its flowers offer a very instructive exemplification of 

 the development of the ovarium ; the last-mentioned species ex- 

 hibiting an intermediate stage, between that described in >S'. Pe- 

 nangianus, and this, which offers another manifest instance of 

 Dr. Wallich^s genus Gomphandra. Here the fleshy petals are 

 linearly oblong, with a comparatively short inflexed apex ; the 

 stamens are not equal to them in length ; the filaments exceed 

 the anthers in breadth, but are not quite so thick as in other 

 species ; they are suddenly contracted to a sharp point at the apex, 

 and have a less prominent internal keel, the summit of which, 

 together with the upper margins of the filaments, are fringed 

 with very long clavate hairs; the anthers are 2-lobed and sagittate 

 from near the almost apical point of their attachment ; the lobes 

 are membranaceous, each longitudinally split open and quite 

 void of pollen or other matter, so that it is not apparent whether 

 they have been fertile or sterile. The ovarium is the length of 

 the stamens, is cylindrical, a little curved, and rather thicker 

 towards the apex ; in diameter it is scarcely broader than the fila- 

 ments, quite smooth, and surmounted by a short, compressed, 

 umbilicated, and somewhat 5-lobed disciform process, which 

 partly overhangs the summit ; the body of the ovarium exhibits 

 only a single large cell, of nearly its whole length, from one side 

 of which, near the summit, two ovules, that almost fill the cavity 

 of the cell, are suspended, each from a short cupshaped strophiolef. 



* A figure of this species, and an analysis of its floral structure, will be 

 shown in plate 14 of the ' Contributions to Botany,' &c. 



t This species, and the details of its floral structure, will be exhibited in 

 plate 15 of the ^Contributions to Botany,' &c. 



