Oncinotis.] Lxxxiv. apocynace^ (staff). 221 



1. O. glandulosa, Stapf. Quite glabrous except the inflores- 

 cence. Young branches terete or slightly compressed near the tip, 

 greyish-brown. Leaves oblong, acutely acuminate, subacute at the 

 base, 3-5 in. long, IJ-lJ in. broad, papery, glossy; secondary nerves 

 9-11 on each side, straight, slightly oblique, finely channelled above, 

 prominent below ; reticulation rather loose, raised below ; petiole very 

 slender, 4-6 lin. long. Panicles lateral and terminal, rather numerous 

 and unequal, the longest sometimes nodding, J-2 in. long (excluding 

 the peduncle), more or less linear in outline ; peduncle hardly any or 

 up to I in. long, compressed, glabrous like the lower part of the rhachis ; 

 flowers often in clusters at the nodes of the rhachis or the ends of the 

 lowest branches ; bracts minute, caducous ; pedicels very delicately 

 ferrugineous-tomentose, up to 1 lin. long. Calyx H lin. long; sepals 

 elliptic, obtuse, thin, very delicately pubescent, with'small glands witiiin 

 alternating with them. Corolla-tube inflated, 2 lin. long; delicately 

 tomentose above the middle without; throat-scales tubercle-shaped, 

 J lin. long ; lobes broad-oblong, 2 lin. long. Anthers IJ lin. long. 



Upper Culnea. Cameroons : Bipinde, in forests, Zenker, 1552 ! 



2. O. nitida, Benth. in Hook. Niger Fl. 451. A scandent shrub, 

 perfectly glabrous except the inflorescences ; young branches com- 

 pressed, ultimately terete, brown when dry. Leaves oblong, abrupt!}' 

 acuminate, acute to acuminate at the base, 3-3 J in. long, 1 j in. bro.ul, 

 thinly coriaceous, glossy on both sides ; secondary nerves 12-14, straif^ht 

 and parallel, connected by short submarginal loops ; veins conspicuous, 

 subparallel, running from the marginal nerve to the midrib, like the 

 nerves raised below ; petiole slender, 3-4 lin. long. Panicles slender, 

 axillary, 1-2 in. long, or elongate, compound, terminal, leafy or leafless ; 

 bracts ovate or oblong-ovate, caducous ; pedicels minutely pubescent, up 

 to 1 in. long. Calyx IJ lin. long, pubescent ; sepals ovate, obtuse or 

 acute. Corolla-tube 2 lin. long; lobes lanceolate-oblong, subacute. 

 2 lin. long ; throat-scales subulate, | lin. long. Anthers slightly over 

 1 lin. long. — K. Schum. in Engl. & Prantl, Pflanzenfam. iv. ii. 170. 



Upper Guinea. Sierra Leone, Yogel, 63 ! 



3. O, Batesii, Stapf. A scandent shrub, perfectly glabrous 

 except the inflorescences ; branches terete, dull brown when dry. 

 Leaves oblong, acuminate, acute at the base, 3i-3j in. long, lJ-2 in. 

 broad, coriaceous, somewhat glossy on both sides ; secondary nerves 

 about 12 on each side, straight and parallel, connected by distinct 

 marginal loops, with fine branched veins running from the margin 

 towards the midrib ; petiole up to 9 lin. long. Panicles simple or 

 compound, terminal and subterminal, 2-4 in. long, minutely rusty 

 tomentose in the upper part, leafy or leafless ; bracts caducous ; pedicels 

 1-1 J lin. long. Calyx 1^ lin. long; sepals ovate-elliptic or elliptic, 

 obtuse, very minutely rusty tomentose along the middle of the back, 

 densely ciliate. Corolla greenish-yellow ; tube 2 lin. long ; lobes oblong, 



