98 



LXXXIV. APOCYNACE^ (sTAPf). 



\Pleiocarpa. 



Corolla 2 in. long ; lobes as long as the tube ; 



berries long-rostr.ite, li in long . . . 1, P. rostrata. 



CorolLi 9-10 liu. lung ; lobes short ; berries ovoid- 

 globose, apiculate, 4 liu. long . . . 2. P. nudica. 

 Leaves hinoeolate, 1-1:^ in. broad . . . . 3. P. salicifolia. 

 Corolla \~-l in. long ; carpels 2, 2-ovuled. 



Corolla 5-9 lin. long, lobes at least A as long as the 

 tube. 

 Flowers shortly (1 lin.) pedicelled in compact 



umbels or panicles 4. P. pycriantha. 



Flowers sessile in compact clusters . . . 5. P. hicarpMata. 



Corolla under 5 lin. long, lobes much less than \ as 

 long as the tube. 

 Leaves oblong, 1^-2^ in. broad, papery. 



Leaves obtuse or obtusely acuminate, lo-lf in. 



broad; corolla-tube 3o lin. long . . 6. P. Welwitschii. 



Leaves abruptly and acutely acuminate or 

 acutely subacuminate, 1^-2} in. broad; 

 corolla-tube 2 lin. long . . . .7. P. niicrantha. 



Leaves oblong-hinceolate to lanceolate, about 1^ in. 

 broad, coriaceous to chartaceous. 

 Corolla-tube 2-2i lin. long . . .* . 8. P.flavescetis. 



Corolla- tube 3-3 i lin. long . . . . 9. P. tubicina. 



1. P. rostrata, Benth. in Hook. Ic. PI. t. 1182. A shrub, 8-12 

 ft. high ; young branches dark brown ; lenticels few, rather large. 

 Leaves oblong to elliptic, very shortly acuminate, acute at the base, 6-8 

 in. long, 3-oi in. broad, coriaceous, glossy above ; secondary nerves 7-9 

 on each side, "distant, oblique ; petioles 3 lin. long. Flowers few in each 

 cluster. Calyx 1 lin. long ; sepals acute or subobtuse. Corolla white ; 

 tube 9-11 lin. long; lobes oblong, rather broad, obtuse, as long as the 

 tube or somewhat shorter. Carpels 3, 4-ovuled. Berries oblong-ovoid, 

 rostrate, H in. long (including the beak), rather fleshy and coarsely 

 rugose. — K. Schum. in Engl. & Prantl, Pflanzenfam. iv. ii. 135, fig. 52, 

 E. Hmiteria rostrata, Hallier f. Kautschuklianen in Jahrb. Hamburg. 

 Wissensch. Anstalt. xvii. (1899), 3. Beih. 194. 



Upper Guinea. Cameroons : Cameroon River, Mann, 720 ! 2189 ! ' 



A specimen collected near Bipinde, in the Cameroons, by Zenker (1181b !) and 

 enumerated by HalHer, I.e., 194, under Hunteria pleioearpa, agrees (so far as the 

 material goes) exactly with Maun's specimens of P. rostrata, except that the young 

 fruits do not show any indication of a beak. The ternate mericarps are quite 

 obtuse, but contain like those of P. rostrata 4 ovules in 2 collateral rows. 1 have 

 not seen flowers of this plant, which is (accoi'ding to Zenker) a small shrub, about 

 3 ft. his:!), with white flowers. 



2. P. mutica, Benth.. in Hook. Ic. PL t. 1181. A shrub, 5 ft. 

 high ; branches dark brown ; lenticels few, rather large. Leaves 

 elliptic or oblong, abruptly acuminate (acumen linear, obtuse, up to 7 

 lin. long), acute or subacute at the base, 3-6 in. long, 1J-2J in. broad, 

 thinly coriaceous, glossy above ; secondary nerves 11-14 on each side; 

 petiole 3 lin. long. Flowers in axillary clusters of 10-20, often from 



