126 LXXXIV. APOCYNACE (STAPF). | Pterotaberna. 
-seeds about 5, ellipsoid, deeply grooved on the ventral face, embedded in 
a scanty fleshy pulp (forming a thin skin when dry); testa crustaceous 
with faint longitudinal ridges, intruding into the albumen between the 
ridges ; endosperm fleshy; cotyledons foliaceous, broad, cordate-ovate ; 
radicle small.—A shrub with slender branches. Leaves opposite, mem- 
branous ; axillary stipules short, but distinct, with very minute glands 
in their axils. Inflorescences usually geminate at the tips of the 
branches, few-flowered, cymose, lax. 
Species 1, endemic. Very similar to some Indian species hitherto referred to 
Tabernemontana, e.g., T. peduncularis or T.malaccana, but differing in the stigma, 
which is remote from the anthers, capitate and exapiculate, and in the winged, 
apparently indehiscent fruits. 1t is distinguished from Tabernemontana proper 
in the structure of the anthers, the stigma and the fruit. Tabernanthe, which is 
very similar in habit, differs not only in the structure of the stamens and the stigma, 
but also in having syncarpous ovaries and fruits, 
1. P. inconspicua, Stapf. A perfectly glabrous shrub, 10 ft. high; 
branches greyish or brown when dry. Leaves obovate-oblong to oblong, 
abruptly acuminate (acumen narrow, linear, up to 1 lin. long), acute to 
cuneate at the base, very variable in size, 24—6 in. long, 11-2} in. broad, 
thin, dark-green above, paler beneath ; secondary nerves slender, 8-10 
on each side, oblique, curved ; veins quite obscure; petiole slender, up 
to 8 lin. long. Inflorescences 1-14 in. long; peduncle up to 4 in. long; 
bracts linear-lanceolate, inconspicuous ; pedicels up to 24 lin. long. 
Calyx slightly over | lin. long, persistent; sepals ovate-lanceolate, acute. 
Corolla-tube 3-4 lin. long, delicately papillose below the stamens, other- 
wise quite glabrous ; lobes obovate, 24 lin: long. Anthers 14 lin. long. 
Mericarps orange-coloured, about 1 in. long, over § in. broad ; wings 
about 1 lin. broad, fused towards the tip into a very broad obtuse short 
beak. Seeds up to 4 lin. long. —Tabernemontana inconspicua, Stapf m 
Kew Bulletin, 1894, 120. 7. trialata, Pierre MS. 
Upper Guinea. Cameroons: Bipinde, Zenker, 1059! 
Lower Guinea. Gaboon: Corisco Bay; Mount John, on the Kongui River, 
Mann, 1803! near Libreville, Klaine, 526! 
19. ERVATAMIA, Stapf. 
Calyx small, subherbaceous to subcoriaceous; sepals 5, free oF 
united at the base, imbricate, broad or narrow, acute or obtuse, each 
with several glands inside the base. Corolla small or middle-sized, 
salver-shaped ; tube cylindric, slightly widened towards the naked 
mouth, rarely near or below the middle, not fleshy ; lobes overlapping 
to the left, very rarely to the right, scarcely asymmetric, tips inflexe 
in bud. Stamens erect, inserted in the widened part of the corolla- 
tube, included ; filaments short, but distinct, more or less decurrent as 
slightly prominent ridges in the tube ; anthers linear, acute, 2-lobed at 
the base, polliniferous and dehiscing right into the usually small basal 
lobes. Disc 0. Ovary apocarpous; carpels 2, sometimes slightly 
coherent ; style long, rarely comparatively short, filiform, very slender 
