550 LXXXVII. GENTIANEZ (BAKER AND BROWN). [Seboea. 
usually much branched at the base; branches very slender. Leaves. 
membranous, sessile, $—? in. long, 24-4 lin. broad, ovate-oblong, 
obtuse, 5-nerved, the lower more or less subrosulate. Cymes lax,, 
elongated, few or several-flowered; pedicels 1—7 lin. long, very slender, 
erect. Flowers 5-merous. Sepals }—} in. long, ovate-lanceolate, acute,. 
much imbricate, pallid, with a green wingless keel. Corolla-tube as 
long as the calyx; segmenis 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 }-1 lin. long, with a 
linear tubercular thickening 4 of its length at the middle; stigma 
compressed, ovoid-oblong, sometimes bifid. 
Lower Guinea. German South-west Africa: in the bed of the White Nosob» 
River, Schinz, 485. 
Mozamb. Dist. Zambesi: on an island at the Victoria Falls, Kirk ! 
8. S. chironioides, Gilg in Engl. Jahrb. xxvi.101. An erect- 
slender annual, 10-12 in. high, simple or sparingly branched above. 
Leaves sessile, linear, acute, {4 in. long, uppermost setaceous. Cymes- 
lax, 3-10-flowered. Sepals 4 in. long, ovate-lanceolate, very acute 5. 
keel not very conspicuous. Corolla reddish or purple when dried ; tube- 
broadly cylindric, } in. long; lobes ovate, acute, } in. long, 14 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. 
Lower Guinea. Angola: Huilla, Antunes, 60. 
9. S. pratensis, Gilg in Engl. Jahrb. xxx. 377, 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, 24-34 lin. long, wing-keeled- 
Corolla-tube cylindric, 24 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. 
Mozamb. Dist. German East Africa: in dry meadows on the Ukwama 
Mountains, Kinga (Livingstone) Range, 8200 ft., Goetze, 916! 
10.8. Welwitschii, Schinz in Viertelj. Naturforsch. Ges- 
4iirich, xxxvii. (1891) 321. Stems very slender, erect, 4 ft. long, 
simple or slightly branched. Leaves few, minute, 1-1} lin. long, 
subulate, sessile, ascending. Cymes very lax, few-flowered ; pedicels- 
4-% in. long, erect; bracts green, ovate-lanceolate, minute. Flowers 
4—6-merous. Sepals oblong-lanceolate, 4 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 im 
Cat. Afr. Pl. Welw. i. 705. 
