363 
0. lucidus, pte nom. ; Derris Incida, Welw. ex Baker in 
Fl. Trop. Afr. ii. 245 ; Millettia breviflora, De Wild. in Ann. Mus. 
Congo, sér. 5, i. 136. 
This species appears to prefer wooded situations and to climb 
over high trees ; it flowers in e. 
TropicaL Arrica. Lower Congo: Valley of the River 
Djama, Gillet, 2845. Angola: Geliage Alto, Welwitsch, 1877, 1878. 
In the thyrsoid nature of its inflorescence Ostryocarpus 
of whi ch he made it the type. Monti on must now be made of the 
three species which had previously been ascribed by their authors 
to Ostryocarpus, but which differ in so many points from the three 
above enumerated that it is preferred to defer the consideration of 
their inclusion until fuller material is obtained. ese are O.? 
Welwitschii, Baker in Fl. ‘lrop. Afr. ti. 240, and O. parvifolius, 
M. Mich. in De Wild. et Th. Dur. in Ann, Mus. Congo, sér. 3, i. 
71, in which the seis reslavggr is not thyrsoid, and O. major, Stapf, in 
Journ. Linn. Soc. xxxvii. 96, in which the leaflets are stipellate 
and the ovary Pe wate. 
Another group comprising three species of West African shrubs 
with thyrsoid panicles of white flowers must be placed near 
Ostryocarpus. It is characterised by stipellate leaflets, con- 
spicuously bracteate flowers, glabrous petals winged pod and by the 
= not adpressed radicle of the embryo, which distinguish 
it from all allied genera, though in its “jelecohonic it is closely 
conceit with Ostryocarpus and in its with Perris. It is 
therefore proposed to describe it as a new genus under the name of 
Ontayitersie: to indicate its connection with those two genera. 
Ostryoderris, Dunn, gen. nov. Derri, Lour., affinis, sed foliolis 
stipellatis distineta 
Frutices scandentes vel diffusi. Folia alterna, imparipinnata ; 
foliola stipellata. Paniculae terminales, een Flores saepis- 
latus, §-dentatus. Petala 
haud hamatae. Stamina diadelphia, vexillare solutum. Discus 
calyci adnatus. varium pauci-ovulatum egumen indehiscens, 
compressum, ala utrinque marginatum, valvis inter semina 
cohoerentibus. Semina lenticularia; embryonis radicula brevis, 
patens, nec cotyledonibus adpressa. 
Tropica, West AFRICA. 
Leaflets ferrugineous beneath ... Bee .. O. impressa. 
Leaflets glabrous beneath— 
ives bracts erect, 2h eta until flowering 
VO, leucobotrya. 
Wiswer bracts folded over the top of the buds, 7 
Boot deciduous ose “e ays O. gabonica, 
O. impressa, Dunn. Frutex gute! ramulis striatis tenuiter 
rufis, — Folia " 4-5-juga, 20-30 cm. longa; stipulae lanceolatae, 
