10 CXLII. XYRIDEZ (BROWN). [ Xyris.. 
Lateral sepals 3-4 lin. 
broad, broadly lanceo- 
late, acute; keel regu- 
larly much curved from 
base to apex, with a very 
narrow wing below . 10, X. scabridula. 
Lateral sepals 4 lin. broad, 
linear - lanceolate, very 
acute; keel slightly 
curved at the middle, 
erect at the apex, nar- 
rowly winged. . 11. X, humpatensis.. 
Lateral sepals 4-3 lin. 
broad, oblanceolate, ob- 
tuse; keel nearly straight 
. in the lower 3, rather 
broadly winged . . 12. X. affinis. 
++tKeel of the lateral sepals distinctly and rather 
coarsely serrulate ; bracts with a very 
distinct greyish dorsal area. 
Peduncle 4-4 lin. thick, acutely 4-6- 
angled; spike 23-3 lin. thick . . 25. X. angularis. 
Peduncle stout, 1-14 lin. thick, terete, 
many-striate ; spike 5-6 lin. thick . 26, A. decipiens. 
+tttKeel of the lateral sepals very distinctly 
and usually rather densely ciliate to the 
apex, 
Spikes not more than 5—6-flowered ; flower- 
ing bracts all reaching to nearly the 
same level; peduncles not more than 4 
lin, thick, slightly compressed . . 13. X. obscura. 
Spikes 10-30-flowered ; flowering bracts 
imbricated one above another. 
Peduncles distinctly compressed ; spikes 
blackish-brown, scarcely shining ; 
bracts 24-22 lin, long, without a 
dorsal area : ° : . 81. X. Hildebrandtit. 
Peduncles terete or subterete, very 
smooth and shining ; spikes chest- 
nut-brown ; bracts 13-23 lin. long, 
with an indistinct dorsal area . 28. X. batokana, 
1, &. foliolata, Vilss.in Svensk.Vet. Akad. Handl. xxiv. No. 14, 65. 
Peduncle about 2 ft. long, ‘‘ teretely triquetrous,” glabrous, Peduncular- 
sheath green, with a subterete leafy point 14 in. long. Spike 44 lin. 
long, 3 lin. thick, ovate, involucrate ; lowest involucral bract about 
5 lin. below the spike, 6 in. long, subterete, sheathing at the base, the 
3 other involucral bracts reduced to flat spreading sheaths, decreasing 
in size from 1} to } in. long, about 1} lin. broad. Flowering bracts 
24 lin. long, 1q lin. broad, broadly obovate, obtuse, very shortly apicu- 
late, coriaceous, cucullate, entire, bright fuscous, lighter towards the 
margins, slightly shining, with a triangular area on the back. Lateral 
sepals 2 lin. long, oblong, keeled; keel narrowly winged, ciliate. 
