Rauv:olJia.] lxxxiv. apocynace^ (staff). US 



tube 1 J-2 lin. long, villous at the mouth ; lobes very broad, ovate, sub- 

 obtuse, scarcely J lin. long. Carpels connate at the base or up to the 

 middle. Fruit unknown. — B. ochrosioides, K. Schum. in Engl, Glied. 

 Yeg. Usambara, 52 and in Engl. Pfl. Ost-Air. A. 88 (not elsewhere). 

 R. inehrians, K. Schum. in Engl. Pfl. Ost-Afr. C. 318 (not elsewhere). 



IKEozamb. Hist. German East Africa: Usambara; at Kizara in North 

 Handei, Holsf, 2360 ! 



8. R. Goetzeiy Stapf. Whole plant glabrous. Young branches 

 stout, subangular, brown when dry. Leaves in whorls of 3-4, shortly 

 petioled, oblong- or elliptic-lanceolate, shortly acuminate, more or less 

 attenuate at the base, very variable in size, up to 1 ft. long and 4 in. 

 broad, chartaceous ; midrib channelled above, stout beneath ; secondary 

 nerves up to 30 or more on each side, subhorizontal, straight or the 

 upper curved ; reticulation faint, lax ; petiole hardly any or up to h in. 

 long, stout. Flowers very shortly pedicelled in few-flowered (always?) 

 clusters on the ends of the secondary or tertiary rays of lax compound 



ovate, obtuse, scarcely h lin. long. Carpels connate at the base. Fruit 

 unknown. 



XVKczaxab. Sist. German East Africa : Ruhanibe, 1650 ft., Gcetze, 385 ! 



The discrimination of this and the three preceding- species is not quite satis- 

 factory' owing to the scanty niaterinl. Further investigation will show how far the 

 characters derived from tlie shape, size and nervntion of tlie leaves may be relied 

 upon. The degree of division of the cal\ x, whether o-purtite with segments dis- 

 tinctly overlapphig at the base, or merely 5-toothed, will probably l)e found of 

 greater taxonomic value. 



9. R. Mannii, Stapf in Keio Bulletin, 1894, 21. A shrub, G-9 ft. 

 high, perfectly glabrous; youngest branches quadrangular, soon rounded, 

 with more or less conspicuous decurrent lines. Leaves in whorls of 

 4-3, very unequal in size, oblong ; abruptly contracted into a yarrow 

 linear acumen (J to 1 in. long), gradually narrowed into the petiole, 

 the longer ones 5-9 in. long, 2-3 in. broad, thinly membranous; 

 secondary nerves almost horizontal, 12-16 on each side; veins quite 

 obscure ; petioles 2-8 lin. long. Flowers in small few-flowered pseudo- 

 umbels ; peduncle about 1 in. long, very slender ; pedicels 1-2 lin. long. 

 Calyx 1 lin. long; segments linear-lanceolate. Corolla-tube 2^ lin. 

 long, villous at the mouth; lobes ovate, obtuse, J lin. long. Carpels 

 connate at the base ; style slender, glabrous. Fruit a simple obliquely 

 ovoid much-compressed drupe or an obcordate twin drupe, 4-5 lin. 

 long. — De Wild, k Durand, Reliq. Dewevr. in Ann. Mus. Congo, Bot. 

 ser. 3, fasc. ii. 150. R. cardiocarpa, K. Schum. in Engl, ife Prantl, 

 Pflanzenfam. iv. ii. 154, fig. 56, E,. 



Upper Guinea. C.imeroons : Yaunde, 2600 ft., Zenker Sf Sfaudt, 665! 

 Bipinde, Zenker^ 1815 ! 



Soutli Central. Congo Free State : liokakata, Dewcvre, 791. 



Jao-wer Guinea. Gaboon: Sierra del Crystal, ^ann, 1720! Muni-'a ; 

 Sibange Farm, Soyaux ! 



