550 Lxxxvii. GENTiANEiE (baker AND brown). [Sebcea^ 



usually much branched at the base ; branches very slender. Leaves 

 membranous, sessile, J-| in. long, 2^—1 lin. broad, ovate-oblong, 

 obtuse, r)-nerved, the lower more or less subrosulate. Cymes lax, 

 elongated, few or several -flowered ; pedicels 1-7 lin. long, very slender, 

 erect. Flowers r)-merous. Sepals J-^. in. long, ovate-lanceolate, acute, 

 much imbricate, pallid, with a green wingless keel. Corolla-tube as 

 long as the calyx; segments 1^ lin. long, oblong, obtuse. Anthers 

 subsessile at the mouth of the corolla-tube, linear, very minutely apicu- 

 late at the apex and tailed at the base. Style j-1 lin. long, with a 

 linear tubercular thickening J of its length at the middle ; stigma 

 compressed, ovoid-oblong, sometimes bifid. 



Iiower Guinea. German South-west Africa : in tlie bed of the White Xosob 

 Kivcr, Schi7iz, 485. 



nXozaxub. Bist. Zambesi : on an island at the Victoria Falls, Kirk ! 



8. S. chironioides, Gilg in En<jl. Jahrh. xxvi. 101. An erect 

 slender annual, 10— 12 in. high, simple or sparingly branched above. 

 Leaves sessile, linear, acute, J-t in. long, uppermost setaceous. Cymes 

 lax, 3-10-flowered. Sepals ^ in. long, ovate-lanceolate, veiy acute; 

 keel not very conspicuous. Corolla reddish or purple when dried ; tube 

 broadly cylindric, ^ in. long; lobes ovate, acute, \ in. long, 1| lin. 

 broad. Staminal-filaments 1 lin. long; anthers linear-oblong, tipped 

 with a minute gland. Ovary large, ovoid-oblong ; style very short, up 

 to ^ lin. long ; stigma clavate, 2-lobed. 



IiOiver Guinea. Anpfola : Huilla, Antunes, 60. 



B. S. pratensis, Gilfj in Engl. Jahrh. xxx. o77, 378, figs. A-F. 

 An erect annual ; stems simple, glabrous, filiform, 3-4 in. long. 

 Leaves in 3-4 distant pairs, 1-3 lin. long, sessile, ovate, oblong-ovate or 

 ovate-cordate and half-clasping the stem (but figured as lanceolate), acute. 

 Cymes lax, terminal, 3-5-flowered, or flowers solitary; pedicels 2—6 

 lin. long. Sepals 5, oblong, acute, 2i-3i- lin. long, wing-keeled. 

 Corolla-tube cylindric, 2^ lin. long ; lobes 5, oblong, twice as long as 

 the tube. Filaments short, subulate ; anthers linear, basifixed, without 

 apical glands. Style elongate, without tubercles; stigma oblong, com- 

 pressed. 



IMtozamb. Dist. German East Africa : in dry meadows on the Ukvvama 

 Mountains, Kinga (Livingstone) Kange, 8200 ft., Goetze, 916 ! 



10. S. Welwitschii, Schinz in Viertelj. Naturforsch. Ges. 

 Zurich, xxxvii. (1891) 321. Stems very slender, erect, \ ft. long, 

 simple or slightly branched. Leaves few, minute, 1-1 i lin. long, 

 subulate, sessile, ascending. Cymes very lax, few-flowered ; pedicels 

 J;-| in. long, erect ; bracts green, ovate-lanceolate, minute. Flowers 

 4-(;-merous. Sepals oblong-lanceolate, J in. long, imbricate, pallid, 

 with a strong green keel. Corolla-tube as long as the calyx ; lobes 

 oblong, as long as the tube. — Bull. Herb. Boiss. iv. 443 ; Hiern in 

 Cat. Afr. PI. Welw. i. 705. 



