MB. Q. BENTUAit's BOTANICAL MEMOBANDA. 75 



ating stigma of Nuphar, where eacli ray belongs to the correspond- 

 ing carpel, and is over the cell ; for Papaveracecd are essentially 

 syncarpous, whilst NympTusacece are normally apocarpous. 



Generally speaking, in Papaveracece the erect lobes of the style 

 are the carpellary tips, and therefore alternate with the placentas, 

 whilst the radiating or descending lobes are the thickened sinuses, 

 and are over the placentas. Adlumia, however, has appeared to 

 me to be in some measure exceptional: the style is entire, but 

 appears to be flattened in a contrary direction to the usual one ; 

 the placentas being opposite the faces and the stigmatic sinuses 

 higher than the real carpellary tips; but I have not had the oppor- 

 tunity of acquiring absolute certainty on this point. 



3. The Species of Ventilago, a Genus of Rhamnacea). 



There are two common East Indian Ventilagos which have been 

 usually confounded under the name of V. maderaspataiia, viz. : 

 1. The original V. maderaspatana of Gsertner, in which the adiiate 

 remains of the calyx form a small flat disk at the very base of the 

 fruit, and which is common in the southern part of the Peninsula 

 and in Ceylon, extending also to Tavoy ; and 2. The species 

 figured by Roxburgh in his ',Plantye Coromandeliana? ' under 

 Gaertner's name : in this the adnate calyx is cup-shaped, the 

 remains of the limb forming a ring or slightly prominent border 

 round the middle of the seed-bearing portion of the fruit. To 

 these I added, in some notes prepared last year on Hong-Kong 

 plants, but now reserved for my ' Flora ' of that island, a new 

 species under the name of V. Iciocarpa. It approaches nearest to 

 Roxburgh's species, but it is more constantly glabrous, the inflo- 

 rescence does not appear ever to form brandling panicles at 

 the summit of the branches, and the fruit is particularly smooth. 

 Some Malacca specimens of Griffith's do not appear to differ in 

 any material respect from the Hong Kong ones, and, what was 

 less to be expected, fine fruiting specimens recently gathered in 

 Western tropical Africa by Barter, as well as the flowering ones 

 we previously possessed from that country, appear to coincide 

 perfectly with the Malacca ones. 



I had already written out for press the subjoined diagnoses of 

 the Indian species, when my attention was called to a paper of 

 Tulasne's in the ' Annales des Sciences Naturclles,' where he also 

 points out the hitherto neglected characters derived from the de- 

 gree of adherence of the fruit, but in which he distinguishes no 

 less than five East Indian species, besides forms which he believes 



