60 LXXXIV. APOCYNACEE (STAPF). [ Landolphia. 
29. L. reticulata, /uallier f. Kautschuklianen in Jahrb. Hamburg. 
Wissensch. Anstalt. xvii (1899), 8. Beith. 87. A tall scandent shrub ; 
young branches stout, terete, covered with a delicate dense rusty 
tomentum. Leaves elliptic, abruptly and acutely acuminate (acumen 
10 lin. long), somewhat rounded at the base, 8 in. long, 34—4 in. broad, 
chartaceous, glabrous and dark-green above, very delicately fulvo- 
tomentellous below; midrib channelled above, much raised below ; 
secondary nerves 7-9, spreading, straight, slightly raised above, more 
so below; petiole stout, 7-10 lin. long, finely tomentellous. Flowers 
and fruits unknown. 
Lower Guinea. Gaboon: Mbusu, on the Eliva Sonanga (Lake Sonenge), 
Buchholz. 
This yields, according to Buchholz, the rubber of the Ogowe basin, Hallier 
places it near D. ochracea. 
30. L. pyriformis, Stapf. A powerful scandent shrub or tree with 
strong hook-branched terminal tendrils (sensitive inflorescences) up 
to 3 ft. long; young branches delicately dark rusty tomentose, soon 
more or less glabrescent, or even quite glabrous, dark reddish-brown, 
with whitish inconspicuous lenticels. Leaves elliptic, shortly acuminate 
or cuspidate, subacute or obtuse at the base, about 6 in. long, 3 in. broad, 
very coriaceous, glabrous (when mature); midribs channelled above, 
much raised below; lateral nerves 13-14 on each side, much spreading, 
straight, connected by marked arches 2~—3 lin. within the margin, like 
the reticulation sunk above, raised below; petiole very stout, up to 4 
in. long. Panicle terminal, up to 3 ft. long, bearing dense clusters of 
sessile flowers at the ends of spreading or recurved branches, rufo- 
tomentellous or glabrescent ; upper part of the rhachis and branches 
sensitive and acting as tendrils. Calyx and corolla unknown to me. 
(Corolla-tube according to Pierre MS. elongate above the stamens which 
are inserted below the middle.) Fruit pear-shaped, 4—6 in. long, 3 in. 
or more broad, finely velvety, reddish-yellow; rind fleshy without a 
sclerenchymatous layer ; seeds about 4, almost 1 in. long.— A ncylobothrys 
pyriformis, Pierre in Bull. Soc. Linn. Paris, 1899, 126; Schlechter in 
Tropenpfl. iv. (1900) 3; Hallier f. Kautschuklianen in Jahrb, Hamburg. 
Wissensch, Anstalt. xvii. (1899), 3. Beih. 85. 
Lower Guinea. Gaboon, Klaine, 1401! 6591! 
This is, no doubt, a member of the section Ancylobolrys ; but its exact position 
cannot be ascertained in the absence of flowers. 
3. CLITANDRA, Benth.; Benth. et Hook. f. Gen. Pl. ii. 692. 
Calyx very small; sepals 5, ovate, ciliolate, otherwise usually 
glabrous, rarely minutely pubescent, eglandular. Corolla salver- 
shaped; tube subcylindric, long or short, or spindle-shaped, or urceo- 
late to companulate, widened and staminiferous just above the calyx 
(rarely higher up but not more than one calyx-length), mouth naked ; 
Jobes 5, narrow, overlapping to the left. Stamens included ; filaments 
