546 LXXXVII. GENTIANE^ (bAKER AND BBOWN). [Exoxum, 



Lcavfis |-2^ in. long ; calyx lobed to more tban half- 

 way down ... ... 1. E.qtiinffuenervium. 



Leaves \-^ in. long ; calyx lobed to nearly half-way 



down . . . , . . . 2. E. zoml/ensis. 



I.E. quittqueiaerviuin, Griseb. in DC. Prod. ix. 4G. A slender 

 erect annual J— 2 ft. high, glabrous in all its parts. Stems simple or 

 branched. Leaves linear, lanceolate or ovate, acute, the lower some- 

 times elliptic and obtuse, 3-5-r>erved, narrowed into a short petiole at 

 the base, f-2J in. long. Flowers in terminal dichotomous or tricho- 

 tomous cymes; pedicels J-| in. long. Sepals ovate, lJ-2 lin. long, 

 very broadly winged on the keel. Corolla-tube campanulate, J in. 

 long ; segments oblong, shorter than the tube. Anthers small, oblong. 

 Style as long as the ovary. Capsule pallid, globose, IJ— 2 lin. in diam. 



Upper Guinea. Lagos : near Lagos, Movdand ! Southern Nigeria : Aboh, 

 Barter, 140 ! On.itsa, Barter, 1750 ! 



TSrile Xiandl. British Fast Africa : Nzaol, Iveti Mountains, Gregortf. 



mf oxamb. ]>ist. Zanzibar, Kirk ! Hildehrandt, 1131 ! German East Africa : 

 Zanguebar, Kirk, 7 ! Portuguese East Africa : Quilimane, Srott ! Zambesi 

 Delta : mouth of the west Luabo River, Kirk ! Lower Zambesi ; Shupanga, Kirk ! 



Also in the Mascarene Islands. 



The flowers are stated to be pale pink by Kirk, and violet by Barter, and by 

 Hildehrandt on the label with a specimen from Madagascar ; in the dried state they 

 are didl yellow. 



2. E, xombensis, N. E. Br. A slender erect annual 1-6 in. 

 high, 1-5-flowered, glabrous. Stem simple or once or twice branched, 

 4:-angled. Leaves in 3-4 distant pairs ; lowest pair minute, the others 

 \-\ in. long, J—| in. broad, very broadly ovate, obtuse or very minutely 

 apiculate, rounded 8.t the base. Pedicels of terminal flowers J-4 lin. 

 long, of lower flowers sometimes up to 1 in. long, very slender. Calyx 

 very broadly 5-winged, subglobose in outline, 5-lobed to nearly half- 

 way down ; lobes broadly ova^te, axjutely cuspidate or abruptly acuminate ; 

 wings reticulately veined. Corolla-tube 2J-3J lin. long ; lobes 5, 

 oblong, obtuse, minutely apiculate, 2-2;^ lin. long, Ij-l^ lin. broad. 

 Stamens 5, exserted ; filaments |-1 lin. long, filiform, inserted in the 

 throat of the corolla-tube ; anthers J lin. long, oblong, obtuse. 



2y!Co7.aml>. Xlist. British Central Africa : Nyasaland ; on a wet rock on the 

 top of Mount Zomba, Buchanan, 449 ! Zomba, Sharpe, 192 ! 



2, SEBJEA, R. Br. ; Benth. et Hook. f. Gen. PI. ii. 804. 



Calyx divided almost or quite to the base into 4-5 or rarely 6 

 keeled or winged segments. Corolla-tube as long as or shorter than 

 the calyx ; segments 4-5, oblong, spreading, contorted in aestivation. 

 Stamens 4-5, exserted, inserted at the sinuses of the corolla ; filaments 

 exserted ; anthers small, apiculate or with or without a gland at the 

 apex and sometimes also 2 at the base. Ovary globose, 2-celled ; 

 placentas axile ; ovules many in a cell ; style filiform, often with a 

 tubercular thickening; stigma oblong, ovoid, capitate or subsimple. 

 Capsule globose or ovoid, membranous, septicidally 2-valved. Seeds many, 



