XXII. GUTTIFERiE (OLIVER). 169 



6. OCHROCARPUS, Thouars ; Benth. et Hook. f. Gen. PI. i. 

 175 and 980. 



(Calysaccion, Wight, Illust. i. 130.) 



Flowers polygamous. Calyx closed before flowering, at length opening in 

 2 (or sometimes 3) valves or sepals. Petals 4-7 (or more). Stamens indefi- 

 nite, free or very shortly connate below ; filaments filiform ; anthers erect, 

 oblong or linear, dehiscing longitudinally. Ovary 2-celled; style short, 

 thick ; stigma 2-lobed ; ovules 2 in each cell. Pruit baccate, 1-^4-seeded. 

 Seeds large; embryo of a large fleshy tigella (radicle), with the cotyledons 

 reduced to a mammilliform projection or 0. — Trees with axillary flowers. 



A small tropical genus of Africa and India. I have seen but one African species, of 

 which there are excellent specimens in the Hookerian Herbarium. 



1- O. africanus, Oliv. A tree of 40-50 ft. ; the leafy extremities 

 rather compressed. Leaves large, coriaceous, oblong-elliptical, apiculate, 

 cuneately narrowed or rounded at the base ; midrib very prominent beneath ; 

 lateral parallel veins rather inconspicuous ; 6-10 in. long, 2-3£ in. broad ; 

 petioles i-1 in. Flowers about lj in. diam., from the nodes of fallen 

 leaves ; peduncles solitary or 2 or 3 together, 1-1 £ in. long, erect. Calyx 

 opening in 2 orbicular or sometimes in 3 broadly elliptical, somewhat pointed, 

 concave, recurved valves. Petals 4 or more, half as long again as the sepals. 

 Stamens very numerous, shortly connate at the base ; anthers linear-oblong, 

 shortly apiculate. Ovary globose, narrowed into a short thick style ; stigma 

 2-lobed, lobes smooth above, recurved ; ovules geminate. — Mammea africana, 

 Don, Gen. Syst. i. 619? 



Upper Guinea. Sierra Leone, Afzelius I Prince's Island, Mann and Barter! (The 

 above description is taken from Air. Mann's specimens.) 



In the Kew Museum there are fruits labelled " M . africana?" received from the late 

 Mr. Barter, which, I think, probably belong to the same species. Externally they are very 

 'miliar to the fruit of Mammea americana, but the outer uniform layer of the pericarp is 

 considerably thicker (±-£ in.) than in specimens which I have seen of that species. The 

 seeds (H-24 in. long, 1-1$ in. diam.) have a hard woody testa, and are closely invested 

 with a tibrous-pulpy layer, of which it is not easy to predicate the origin. The embryo, so 

 ,ar as I can make out, consists of a uniform, hard, fleshy mass, with a short mamilhforrn 

 extremity ; the latter separating easilv into equal halves. I incline to regard the mass of 

 the embryo as tigella (radicle) and the 2-partite mamilla as the cotyledons,— precisely the 

 converse of what obtains in M. americana, as so carefully described by Messrs. Planchon 

 « D <i Triana, and correctly, as I have myself ascertained. As a similar structure obtains 111 

 Indian specimens of Catysaccion, which does not appear to differ generically from Ochro- 

 c "rjj Us of Thouars, I have with the concurrence of M. Triana, referred the African Mam- 

 *W of Don, to the latter genus ; Ochrocarput occupying in the Tribe Garciniea a relation 

 corresponding to that borne by Mammea to the rest of Calophyllea. 



Order XXIII. TERNSTRCEMIACEjE (by Prof. Oliver). 



Flowers regular, hermaphrodite or rarely unisexual. Sepals usually 5, 

 J re e or shortly connate, imbricate, the inner often larger. Petals usually 5, 

 ,ree or usually connate below, much imbricate. Stamens indefinite, rarely 

 ^finite, hypogynous, free or connate and adnate below to the petals ; anthers 



