112 Lxxxiv. APOCYNACE^ (stapf). [Rauit'olfia. 



the very short petiole, 2 J-G in. long, f -2 in. broad, firmly membranous ; 

 midrib rather slender, deeply channelled above ; secondary nerves about 

 16-2.") on each side, starting more or less at right angles to the midrib, 

 curved near the margin ; reticulation distinct, dark brown, somewhat 

 close. Flowers sessile in dense clusters at the ends of the secondary 

 rays of compound contracted umbels ; peduncle J-1 in. long ; primary 

 rays up to h in. long ; secondary rays 2-3 lin. long. Calyx J lin. long ;. 

 segments broad-ovate, subacute, overlapping at the base. Corolla-tube 

 scarcely H lin. long, villous at the mouth ; lobes broad-ovate, obtuse or 

 subacute, "^ lin. long. Carpels connate at the very base in flower. 

 Fruit unknown. — B. inebrians, K. Schum. in Engl. Pfl. Ost-Afr. B. 

 352 (the Gonja plant only). 



IkKozamb. Hist. German East Africa : Itarige, Fischer, 377 1 Usambara ; 

 Gonja, Eobt, 4336 ! 



I have seen only the top of a flowerincr branch of Fischer's specimen. Its leaves 

 are much narrower and smaller thiin those of the Gonja plant, but tliey agree 

 exactly in the nervation, venation, and texture; the intioresceuce and flowers al>a 

 agree. 



G. R. inebrians. A". *S'c7mm. iii Engl Pfl. Ost-Afr. A. 93, 105; 

 B. 352 partly ; C. 318 partly. A middle-sized tree, quite glabrous; 

 young branches terete, blackish when dry, stout. Leaves in whorls of 

 about 4, lanceolate to oblong-lanceolate or broad-oblanceolate, acute or 

 shortly and very acutely acuminate, long attenuate towards the short 

 petiole, 5-12 in. long, lJ-3 in. broad, membranous; midrib stout;, 

 secondary nerves about 25-30 on each side, subhorizontal, straight or 

 slightly curved, forked near the margin ; veins faint, loosely anastomos- 

 ing. Flowers sessile or subsessile in dense clusters on the ends of the 

 secondary rays of compound lax umbels (about 3 in. in diam.) ; peduncle 

 up to 2 in. long; primary rays up to 2 in. long; secondary rays up to 

 4 Hn. long. Calyx J lin. long; segments ovate, subacute, overlapping 

 at the base. Corolla" white ; tube 2J lin. long, villous at the mouth ; 

 lobes very broad, subacute or obtuse, h lin. long. Carpels connate at 

 the very base in flower. Fruit unknown. — K. Schum. in Engl. & Prantl, 

 Pflanzenfam. iv. ii. 154; Yolk. Kilimand. 231, 291. 



Mozamb. Hist. German East Africa: Kilimanjaro; Marangu, 490O ft., 

 Volkens, 1415 ! 



7. R. obliquinervis, Stapf. Whole plant glabrous. Young 

 branches stout, terete, blackish when dry. Leaves whorled, very shortly 

 petioled or subsessile, lanceolate or oblanceolate, shortly and very acutely- 

 acuminate, long attenuate towards the base, 6-9 in., long, lJ-2 in. 

 broad, firmly membranous, dark and shghtly shining above, pale beneath ; 

 midrib channelled above, prominent and stout beneath ; secondary nerves 

 16-20 on each side, oblique, starting at an angle of 65°-45°, curved ; 

 reticulation faint though distinct, lax. Flowers sessile or subsessile in 

 dense clusters, at the ends of the secondary rays of lax compound umbels ; 

 peduncle 2 in. long ; primary rays 1-lf in. long; secondary rays 4-9 

 in. long. Calyx not quite J Un. long, cup-shaped, 5-toothed. Corolla- 



