Liberia <^ 



lobes 2 — 2\ in. long) and paired baccate follicles of the size 

 of a small orange ; Sino Basin, Situ, 6 ! 8 ! 



C. crassa, Stapf {syn. Tabernaemontana crassa, Benth., Plate 257) : a 

 small tree or shrub with elliptic or oblong leaves (6 — 9 in. by 

 3 — 4i in.) and 12 — i5-flo\vered corymbs of shortly pedicelled 

 white fleshy flowers (calyx up to \ in. long, corolla tube about 

 I in. long) and paired baccate follicles of the size of a child's 

 head, " the seeds resting in an almost woody pulp " (Vogel) ; 

 Grand Basa, Vogel, 21!; Dinklage, 1434!; Sino Basin, Whyte, 

 19! — This was credited with yielding part of the rubber of 

 Upper Guinea, but experiments made with a specimen cultivated 

 in Ceylon, under the name of Taberncemontana crassa were 

 unsuccessful. A few other species of Conopliaryngia have also 

 had the reputation of being rubber-producing ; but our actual 

 knowledge on this point is of the slightest, and rather suggests 

 that the rubber derived from them is cither useless or only 

 obtainable in small quantities. 



*Voacanga caudiflora, Stapf {?\?Ji& 258) : a glabrous shrub with slender 

 branches, papery lanceolate leaves, nodding few-flowered in- 

 florescences, tubular calyces, f in. long, and yellow (?) corollas 

 (tube \ in. long, lobes tail-like | in. long) ; Kakatown, \Vkyte\ 



V. bracteata, van lanceolata, Stapf: a shrub similar to the preceding, 

 but with a shorter calyx (J in. long); Kakatown, \Vhyte\ and 

 smaller corollas (tube \ in. long, yellow, lobes broad reflexed, 

 violet-brown, \ in. long) ; Sino Basin, Wliyte ! Sim ! 



•Pleioceras whytei, Stapf (Plate 259) : a glabrous shrub with thin 

 ovate to elliptic leaves and many-flowered panicles of rather 

 small flowers with a fringe of more or less thread-like appendages 

 in the throat ; near Sino River, Whyte 



Strophanthus g^atus, Franc/i. (Plate 219): a climbing glabrous shrub 

 often of very considerable dimensions with coriaceous oblong 

 leaves, 3 — 6 in. by 2 — 3 in., terminal few to 12-flowered cymes 

 of handsome funnel-shaped flowers, white or tinged with pink 

 with narrow purple scales in the throat (tube i ^ in. long, lobes 

 |— 1 in. long) and with divaricate follicles, 8i — 15 in. by \\ — 2 

 in., containing glabrous spindle-shaped seeds bearing a plumose 

 awn, 2 — 3 in. long at one end, the hairs of the plume being 

 turned away from the seed ; Monrovia, Krause ; Kakatown, 

 Whyte ! — The seeds are the most important source of strophan- 



628 



