Costus. | CXXXIV, SCITAMINEE (BAKER). 301 
9. C. lateriflorus, Baker. Leafy stem apparently sarmentose. 
Leaves oblong, 5-7 in. long, 24-3 in. broad at the middle, obtusely 
cuspidate, cuneate at the base, moderately firm, glabrous on both sides; 
petiole and ligule very short. Flowers many in a cluster from the side 
of the stem; bracts small, oblong. Calyx subcylindrical, firm in tex- 
ture, ł in. long, shortly toothed at the apex. Corolla-lobes oblong- 
lanceolate, above 1 in. long. Lip sulphur-yellow, 2 in. long and broad, 
irregularly toothed round the outer edge; process of fertile stamen 
nearly 1 in. shorter than the lip ; anther } in. long. 
Lower Guinea. Corisco Bay: Mount John, River Kongui, Mann, 1629! 
10. C. bicolor, J. Braun & Schumann in Mitth. Deutsch. 
Schutzgeb. ii. 152. Leafy stem slender, 10-20 in. long. Leaves oblong- 
lanceolate, 2-4 in. long, acuminate, narrowed to the base, firm in 
texture, glabrous on both surfaces. Flowering peduncle short, with 
only sheaths from the nodes. Spike 2-flowered ` bracts not longer than 
the ovary. Calyx violet, funnel-shaped, 4 in. long; lobes very short. 
Corolla 1 in. long; lobes narrowly lanceolate. Lip obovate, golden- 
yellow, 2 in. long, crenulate on the margin ; process of fertile stamen 
lanceolate, acuminate. 
Upper Guinea. Cameroons: Muha, near Malimba, in woods, Braun ! 
No specimen in the Kew Herbarium. 
11. C. tappenbeckianus, J. Braun & Schumann in Mitth. 
Deutsch. Schutzgeb. ii. 152. Leafy stem 1-1} ft. long. Leaves shortly 
petioled, obovate, 2—3 in. long, acute, rounded at the base, pilose 
beneath and on the midrib. Fertile stem very short, not leafy. Spike 
oblong, 4-flowered ; bracts ovate, subcomplicate, nearly an inch long. 
Calyx under 4 in. long, cut } down. Corolla-lobes lanceolate, hyaline. 
Lip obovate, above 2 in. long, undulated at the apex; process of fertile 
stamen lanceolate. 
Upper Guinea. Cameroons: Batanga, in the forest, Braun. 
No specimen in the Kew Herbarium. 
12. CG pauciflorus, Schumann in Engl. Jahrb. xv. 421. Leafy 
stem under a foot long, arising from a creeping rootstock, with two 
sheaths in the lower half and two leaves in the upper half some distance 
apart. Leaves oblong, 4—6 in. long, 2-3 in. broad at the middle, 
moderately firm, obtuse, rounded at the base, pubescent beneath ; 
petiole and ligule both very short. Flowers 2-3 in a spike, arising 
direct from the rootstook on a short peduncle ; bracts ovate, scariose, 
the outer 1} in. long. Calyx spathaceous, slit in the upper third. 
Corolla-lobes oblanceolate, membranous, obtuse, 1} in. long. : Lip 2 in. 
long and broad, obovate-cuneate, tinged with lilac; petaloid filament 
obtuse, half as long as the lip; anther-cells placed half way down it, 
ł in. long. 
Lower Guinea. Gaboon: Munda; Sibange Farm, swamps in forest-clearings, 
Soyauz, 119! 
A very distinct species, with a flower spike and bracts like those of an Amomum. 
