Pleiocarpa. | LXXXIV. APOCYNACEH (STAPF). 103 
clusters. Calyx } lin. long; sepals broad, ovate, obtuse. Corolla 
unknown. Carpels 2, 2-ovuled. Berries ellipsoid or obovoid, minutely 
apiculate, 3-4 lin. long (immature).—Hunteria pycnantha, Hallier f. 
Kautschuklianen in Jahrb. Hamburg. Wissensch. Anstalt. xvii. (1899), 
3. Beih. 191 partly, not of K. Schum. 
South Central, Congo Free State : Niamniam, Mbrwole River, Sehweinfurth, 
3073 ! 
9. POLYADOA, Stapf. 
Calyx very small; sepals 5, almost free, firm, coriaceous, obtusely 
keeled, acute or obtuse, with scale- or finger-shaped glands within, more 
or less coated with resin. Corolla salver-shaped ; tube subcylindric, more 
or less widened below the naked mouth ; lobes 5, oblong, overlapping to 
the left, twisted in bud. Anthers enclosed in the widened part of the 
tube, ovate to lanceolate; cells obtuse at and dehiscent to the base. 
Disc. 0. Carpels 2, free; style filiform; stigma at the level of the 
anthers or almost so, oblong-ellipsoid, viscid, subpapillose all over except 
at the smooth bifid apex ; ovules 10-24 in 3-6 rows. Fruit unknown.— 
Small glabrous trees or shrubs. Leaves opposite, thinly coriaceous, 
with distant or close, spreading nerves; axillary stipules 0; axillary 
glands obscure or 0. Flowers in terminal or pseudo-axillary, subsessile 
or shortly peduncled, clusters or congested corymbs. ‘“ Apocynacea, 
quoad genus dubia,” Stapf in Journ, Linn. Soc. xxx. 90. 
Species 2, endemic. 
Leaves 5-S in. long, 2-3 in. broad ; middle secondary 
nerves 5-9 lin. apart. : : : . 1. P. umbellata. 
Leaves 3-5 in. long, 13-2 in. broad; middle 
secondary nerves 2—3 lin. apart : : 2. eliotn, 
1. P. umbellata, Stapf. A small tree 24-30 ft. high, with very 
hard wood; young branches much compressed, drying blackish- or 
reddish-brown, older ones with a few warty lenticels. Leaves elliptic 
to broad-oblong, shortly and obtusely acuminate or subacuminate, 
acute at the base, 4-9 in. long, 14-34 in. broad, chartaceous, drying 
brown; midrib channelled above, much raised beneath ; secondary 
nerves about 10-14 on each side, rather oblique, straight to beyond the 
middle, slightly raised on both sides but principally below; veins 
mconspicuous ; petiole 4-3 in. long. Flowers many in subsessile, 
rarely distinctly peduncled, terminal or pseudo-terminal clusters, or 
congested umbelliform inflorescences ; pedicels up to 1} lin. long. 
Ualyx very resinous ; sepals rotundate-ovate, obtuse, with numerous 
cylindric glands within, }-? lin. long. Corolla yellowish-white ; 
tube slender, 3-34 lin. long, sparsely pubescent below the stamens ; 
lobes flexuous, linear-oblong, as long as_ or slightly lcnger than 
the tube. Anthers ovate-oblong, subacute, } lin. long. Ovules about 
6-seriate, 3-4 in each row.—Carpodinus umbellata, K. Schum. in Engl. 
Jahrb. xxiii. 221; Pierre in Bull. Soc. Linn. Paris, 1898, 38. Hunteria 
