Sebeea. | GENTIANEA (Hill and Prain), 1071 
This species may be distinguished by the campanulate calyx, the segments 
being fused for about 4 of their length ; S. jiliformis also shows this character to 
a less marked extent; it can be distinguished from S. exigua by its more slender 
habit, and minute leaves, narrow keel-wings, the relatively large glands of the 
anthers and short anthers, filaments and the elongate bilabiate stigma, Wilms, 
972 from the Northern Transvaal, which is one of the types of Schinz’s species, 
shows certain affinities with the more slender forms of ¥. exigua, Both these 
species are ‘closely allied to Sebwa mirabilis, but this latter species is distinguished 
by the presence of a conspicuous wing to the calyx-segments. From some of the 
specimens collected by Burke, however, it is not always easy to separate S. exigua 
from S, mirabilis by this character. In both, the stigmatic characters are similar, 
but 8. mirabilis is usually the stronger plant. 8. jiliformis is also closely related 
to S. Welwitschii from Lower Guinea, and like that species and probably also 
S. exigua and S. mirabilis may be parasitic or possess mycorhiza, 
21. §. caladenia (Gilg in Engl. Jahrb. xxvi. 89) ; annual, erect, 
slender, 2-3 in. high ; leaves ovate-oblong, subacute, herbaceous, 
2}-44 lin. long, 24-3 lin. broad ; cymes lax, 5—7-flowered ; branches 
4 lin. long; pedicels + lin. long; calyx-segments lanceolate ; 
acuminate, with keel 2} lin. long; corolla-tube 3-3} lin. long ; 
lobes 14-13 lin. long, 3-1 lin. broad, ovate, obtuse ; filaments 3 lin, 
long; anthers 1-1} lin. long, with apical and two basal glands ; 
style 23 lin. long, with swelling; stigma bilabiate. Schinz in 
Mitteil. Geogr. Ges. Liibeck, xvii. (1903) 40. 
Centra Recion: Calvinia Div. ; Hantam Mountains, Meyer, 
22. 8. acutiloba (Schinz in Bull. Herb. Boiss. iii. 412); annual, 
erect, weak, unbranched, 2—4 in. high, with long internodes ; leaves 
in 2-4 pairs, orbicular-ovate, acute, 1—2 lin. long, 1-2 lin. broad ; 
cymes 3—5-flowered ; branches slender, 2-3 lin. long ; pedicels about 
+ lin. long; calyx-segments narrowly elliptic, acuminate, 14-13 
lin. long, with a distinct keel-wing widest about the middle ; corolla- 
tube about 14 lin. long; lobes #-1 lin. long, 4} lin. broad, ovate, 
acute ; filaments } lin. long; anthers } lin. long, with very small 
apical gland; style ? lin. long; stigma and swelling confluent. 
Gilg in Engl. Jahrb. xxvi. 100; Schinz in Mitteil. Geogr. Ges. 
Liibeck, xvii. (1903), 39. 8. Tysonii, Schinz in Bull. Herb. Boiss. 
Qme sér, viii, 703. : 
Coast Recion.: Knysna Div. ; Zuur Vlakte, Z'yson ! ie 
Fre cena Recion: Natal; near Clairmont, 60 ft., Schlechter, 3045! Wood, 
S. Tysonii agrees exactly with S. acutiloba, but it is possible that there may be 
some mistake as to the locality written by MacOwan on the sheet of the former. 
23. 8. grisebachiana (Schinz in Vierteljahrsschr. Naturf. Gesellsch, 
Ziirich, xxxvii. 322); annual, erect, simple or branched, 2-3 
in, high; leaves in 4-6 pairs, the lowesi separated by short 
internodes and giving an appearance of a leaf-rosette, 14-2} lin. 
long and broad, ovate-orbicular, subacute; cymes few-flowered, 
compact ; branches 1-5 lin. long ; pedicels 1-2 lin. long 3 calyx: 
Segments 2-24 lin. long, lanceolate, acuminate, with narrow keel- 
Wing, broadest about the middle ; corolla-tube 2-3 lin. long; lobes 
