100 Lxxxiv. APOCYNACE.E (stapf). [Pkiocarpa. 



subelliptic, obtusely acuminate (acumen linear, obtuse, up to lin. long),, 

 acute or acuminate at the base, J^-B in. long, 1-2 in. broad, chartaceous, 

 glossy above ; secondary nerves about 20 on each side, straight, sub- 

 horizontal, very fine, slightly raised on both sides, with very similar 

 tertiary nerves between them, which are (like the delicate veins) quite 

 obscure below and faintly raised above ; petioles 2-4 lin. long. Flowers 

 few to many in axillary clusters, often from the axils of fallen leaves, 

 rarely from those of the uppermost pair and then apparently terminal. 

 Calyx f lin. long ; sepals ovate, acute or subacuminate. Corolla white, 

 fragrant ; tube 3^-7 (usually 4-5) lin. long; lobes more or less oblong, 

 obtuse, 2^-oi- lin. long. Carpels 2, 2-ovuled. Berries fig-shaped, 8-9 

 lin. long, "5-0 lin. in diam. — K Schumann in Engl. &, Prantl, Pflanzen- 

 fam. iv. ii. 135. Iliinteria a7nhiens, K. Schum. in Engl. Jahrb. xxiii. 

 223 ; Hallier f . Kautschuklianen in Jahrb. Hamburg. Wissensch. 

 Anstalt. xvii. (1899), 3. Beih. 191. 



Upper Guinea. Cameroons : Cameroon Mountain, 4000 it., Mann, 1213! 

 Barombi, 1300 ft., Freuss, 44 ! Johann Albrechts Holie, 1300-1400 ft., Standi, 

 573! 683! 794! Uipinde, 360 it., Zenker, 1658! 1660! 1728! Bijoka, 500 ft.^ 

 Zenker ! Lolodorr, 1500 ft., St audi, 93 ! Yaunde, Zenker, 501 ! 753 ! Zenker ^ 

 Standi, 611 ! Efulen, Bates, 368 ! 



G. P. Welwitschii, Sta/pf ex Hiern in Cat. Afr. PL Weho. i. 665. 

 A tree, 10-18 ft. high; branches spreading, flexuous. Leaves mostly 

 ternate, rarely opposite, oblong, obtuse or obscurely acuminate, subacute 

 or obtuse at the base, 4-G in. long, 1|-2| in. broad, coriaceous, glossy- 

 above, dull green beneath, almost glaucous ; secondary nerves subhori- 

 zontal, about 10-15 on each side, very faint ; veins obscure; petioles 

 6 lin. long. Flowers in small axillary clusters, sessile. Calyx h lin. 

 long ; sepals broadly ovate, very obtuse. Corolla-tube white, 3 J lin. long, 

 slightly widened above the middle ; lobes yellow, spreading, roundish- 

 ovate, J lin. long. Carpels 2, 2-ovuled. Berries obovoid or pear-shaped, 

 5-6 lin. long. — Iliinteria pycnantha^ Hallier f. Kautschuklianen in 

 Jahrb. Hamburg. Wissensch. Anstalt. xvii. (1899), 3. Beih. 191 partly, 

 not of K. Schum. 



KoDirer Guinea. Ansrola : Golungo Alto ; by the Cuango stream, JVelwiisch, 

 5981 ! 



South Central. Angola : Lunda ; Luachim River, Buchner, 621 ! 



Wehvitscli states (in MS.) that this tree is extremely rifcli in a milky juice which 

 dries to an elastic rubber. 



A plant collected in Lunda, on the Lulua River, by Pogge (1630 !) was referred 

 by Hallier f.. I.e., to Hunieria pycnantha, which it certainly is not, but the specimen 

 is too defective for determination. 



7. P. xnicrantlia, Stapf. A small tree, 20 ft. high ; young 

 branches slender, terete ; old bark grey. Leaves opposite or ternate, 

 oblong, abruptly and shortly acuminate (acfumen subacute), acute at 

 the base, 4-6 in. long, 1 J-2J in. broad, chartaceous, dull green, slightly 

 shining above ; secondary nerves about 20 on each side, very fine, sub- 

 horizontal, straight, faintly raised on both sides, but more distinctly 



