pr" 
Cadalvena. | CXXXIV. SCITAMINEH (BAKER). 297 
rounded at the apex; anther 2-celled, placed in the centre of a strap- 
shaped petaloid process. Ovary 3-celled ; ovules many in a cell; style 
filiform ; stigma dilated, ciliated round the edge. Capsule membranous. 
Seeds globose, with a straight central embryo.—Acaulescent annuals, 
with a rosette of large cuneate leaves spreading on the ground and 
few large fugitive flowers on short pedicels from the centre of the 
rosette. 
Endemic. 
Habit, calyx and corolla of Kempferia, section Soncorus ; stamen and staminodia of 
Costus. 
Leaves much imbricated, not thickened at the base , 1. C. spectabilis. 
Leaves not imbricated, thickened and spongy at the base 2. C. pistiefolia, 
1. C. spectabilis, Fenzl in Sitz. Akad. Wissen. Wien, Math. Nat. 
li. Abth. ii. 140. Leaves usually 4 in a spiral rosette, obovate-cuneate, 
much imbricated, 2-8 in. long and broad, pale green, membranous, 
glabrous, not thickened at the base. Flowers few, on short pedicels 
from the centre of the rosette, contemporary with the leaves. Calyx 
short, funnel-shaped. Corolla-lobes lanceolate, ascending, 14-2 in. long. 
Lip pale yellow, obovate-cuneate, 3 in. long 14-2 in. broad; fertile 
stamen shorter than the corolla-lobes; anther-cells nearly parallel, 
4 in. long, overtopped by a long pale yellow strap-shaped’ petaloid pro- 
cess.—Kempferia spectabilis, Benth. Gen. Plant. iii. 642. Costus 
spectabilis, Schumann in Engl. Jahrb. xv. 422, and in Engl. Pfl. Ost- 
Afr. ©. 150. 
Wile Land. Upper Senaar ; Fazokl, Boriana ; Jur; Jur Ghattas, Schweinfurth,. 
1888 ! Galabat: banks of the Gendua River, Schweinfurth, 1345! 
Lower Guinea. Congo: Loukoungou, 700-2000 ft., Hens, 353 ! 
Mozamb, Dist. German East Africa: Usambara, Holst! Portuguese East 
Africa: Morambala Mountain, 2000-3000 ft., Kirk! Waller! British Central 
Africa: Nyasaland; Shire Highlands, Buchanan, 26! near Blantyre, Zast ! Mount 
Sochi, Scott-Elliot, 8521! between Lake Tanganyika and Lake Nyasa, Johnston ! 
and without precise locality, Buchanan, 532! 668! 
2. C. pistizfolia, Baker. Closely allied to C. spectabilis, but 
leaves more cuneate and not imbricated, thickened and spongy at the 
` base, as in Pistia, ovary shorter, corolla-lobes broader and anther- 
cells only half as long.—Costus pistiefolius, Schumann in Engl. Jahrb. 
xv, 424, 
Lower Guinea. Angola: in woods at Malange, Teuscz, 3151 
No specimen in the Kew Herbarium, 
3. COSTUS, Linn.; Benth. et Hook. f, Gen. Pl. iii. 646. 
Calyx funnel-shaped; teeth ovate, erect, equal. Corolla-tube 
funnel-shaped ; lobes oblong, equal. Lateral staminodia suppressed 
or minute; lip large, obovate-cuneate with incurved edges ; anther 
2-celled, placed in the centre of a strap-shaped petaloid process ; 
ovary 3-celled; ovules many in a cell; ‘style filiform; stigma dilated, 
