116 Lxxxiv. APOCYNACE^ (stapf). [Eauwolfia. 



13037; near Lagos, Rowland/ Niger Protectorate: by the Nun River, Barter, 

 2091! Nupe, Barter, 1704! Old Calabar, Thomson, 5-1! 120! Cross River, 

 Johnston I Cameroons : Cameroon River, Mann, 750 ! Preuss, 903 ! Batangn, 

 Bates, 32! Yaunde, 2600 it., ZenJ^er ^ StawcU, 118! 784! Zenker, 736! 8001 

 1736 ! Bipinde, Zenker, 842 ! 850 ! 1626b ! 2118 ! 



XiOTver Guinea. Gaboon : Klaine, 892 ! Lower Congo : Kisantu, Q-illet, 

 203! 



IMEozamb. Slat. German East Africa : Karagwe ; Bukoba, Stuhlmann, 980, 

 3616, 3621 ! 



Soatli Central. Congo Free State : Niamniam, by the Assika River, Schocein- 

 furth, 3246 : Mobanga, on tbe Congo, Dewevre, 753. Kiboubou, neur Kasongo, 

 Dewevre, 924 ! 



15. R. Volkensii, Stapf. A glabrous shrub, 6 ft. high ; branches 

 slender, the older coaiseiy leniiceilate. Leaves in pairs or in whorls of 

 3, broadly lanceolate to lanceolate -oblong, 2|-3 in. long, 1-1 J in. broad, 

 acute or subacuminate at both ends, very thin ; secondary nerves about 

 7 on each side, faint, but distinct. Flowers pedicelied, in more oi- 

 less umbeliiform 8-5-liowered glabrous peduncled terminal cymes; 

 peduncles up to 1 in. long ; pedicels 2-5 Im. long. Calyx-segments 

 lanceolate-subulate, 1 lin. long. Corolla greenish ; tube i in. long, 

 widened below the middle, hairy w^ithin except at the base, mouth not 

 villous; lobes elliptic, very obtuse, 4-5 lin. long, elegantly veined. 

 Anthers inserted 2 lin. above the base, |-1 lin. long. Carpels connate 

 beyond the middle; style 1^ lin. long. Fruit obcordate when young. — 

 Taherncpmontana Volkensii, K. Schum. in Engl. Pfl. Ost-Afr. C. 316. 



nCozambi. Blst. German East Africa : Usambara ; Mlalo, Holst^ 174 ; 

 Kilimanjaro ; Shira, Vol kens, 1942 ! 



Imperfectly knovm species. 



16. R, dichotoma, K. Schum. in Engl, d; Frantl, Pflanzenfcmi. 

 iv. ii. 154. 



Kower Guinea. Island of St. Thomas, Moller, 145 ! 



1 have seen only fragments of this plant, the description of which is quite un- 

 sufticient. It has opposite leaves with pttiolcs over 1 in. long, and small terminal 

 panicles witl) linear bi'acts. The minute, crowded buds are coated with a kind of 

 varnish. It is very doubtful whether this is a Bamcolfia. 



17. R. longeacxunmata, De Wild, k Durand in Comptes-rendus 

 Soc. Bot. Belg. xxxviii. 205. Glabrous ; branches terete, lenticellate. 

 Leaves whorled, petioled, long elliptic-lanceolate, very long acutely acumi- 

 nate, long cuneate at the base, 3^-4 in. long, 5|-13 lin. broad, drying 

 blackish ; secondary nerves about 11 on each side: veins inconspicuous. 

 Flowers in small glabrous umbels, J in. across; peduncle 8-10 lin. long; 

 pedicels J-| lin, long. Calyx J lin. long; segments triangular, acute. 

 Corolla-tube Ij-- liii- long; villous at the mouth ; lobes | lin. long. 



£ower Guinea. Congo Free State : Cahra. 



The author compares this species with R. obscura, which is also very imperfectly 

 tnown. 



