89 INCARVILLEA PARASITICA. 
Calyx tubular, somewhat gibbous ; mouth 5-parted. 
Corol tubular, curved. Tube somewhat ventricose ; outside villous; 
mouth oblique and divided into five, nearly equal, semicir- 
cular segments, one above, and two on each side. 
Filaments four, didynamous, extend beyond the mouth of the tube. 
Anthers linear, apices united. 
Germ superior, linear, smooth ; base embraced by a nectarial ring, 
4-celled; ovules numerous, attached to the incurved margins 
of the partitions. Style length of the germ or more, pro- 
truded beyond the anther. Stigma entire, fleshy, subinfun- 
dibuliform. 
Capsule siliqueform, pendulous, long and very slender, being 
about twelve inches long, and scarce so thick as a quill, 
smooth and brown, a groove on the opposite sides, 4-celled, 
2-valved. Valves thin, almost membranaceous. 
Seeds numerous, minute, imbricated, cylindric, rough; from the 
zs apex two long hairs, and from the base one; they are attached 
to the rolled in edges of the valves of the capsule, as in the 
germ. 
Albumen none. 
Embryo cylindric, inverse. Colyledons oblong, not half the length 
of the whole embryo. When 
vegetation begins the struciure of the parts become evident : 
the apex of the radicle first projects, from which innumerable 
most minute rays issue, and lay hold of the soil, or rather 
bark of the tree they are sown on, Kc. as in the other 
parasites. 
Radicle cylindric, superior. 
292. OROBANCHE ACAULIS. 
Stemless : flowers crowded into irregular heads immediately on 
the roots: corol five parted, laciniate: anthers single, each of the 
inner pair augmented with a large, recurved, oval gland: stigma 
peltate. 
OBSERVATIONS. 
Found growing on the root of the China sugar cane, in the 
Botanic Garden at Calcutta, and in full blossom in September. 
DESCRIPTION. 
Root, I suspect annual, of many, thick, firm fibres, adhering to the 
roots of the China sugar cane. 
Stem none. 
Flowers numerous, short-peduncled, collected in large dense fas- 
cicles, even with the surface of the earth, very large: colour 
a beautiful lively purple. 
Peduncles short, round, smooth, one-flowered. 
Bractes triangular, fleshy, they embrace the base of one or more 
peduncles, uniting them into a tuft, close to the root. 
Calyx one-leaved, length of the tube of the corol, fleshy, simple, 
opening on one side, or dividing into two unequal portions : 
outside tinged with red: inside white. 
Corol with tube obliquely clavate, campanulate, smooth in every 
part. Inside yellow. Throat contracted, and trigonal. Border 
5-parted ; che divisions nearly equal, and about as long as the 
tube: margins laciniate. 
Filaments smooth. Anthers : a large, oblong white gland, is attached 
to the base of the inner pair, appearing like a second 
anther. 
OROBANCHE ACAULIS. 90 
Germ ovate. Style rather longer than the stamina, curved, smooth. 
Stigma peltate, very large, somewhat 3-lobed, glandulous, 
slightly villous. 
Capsule ovate, one-celled, 2-valved, with two pair of ramous re- 
ceptacles, to which the numerous, very minute seeds adhere. 
CONGEA. 
DIDYNAMIA ANGIOSPERMIA. 
NATURAL ORDER, VITICES, Juss. 
GENERIC CHARACTER. 
Involucre few-flowered. Calyx tubular. Corol irregular. Stamina 
very long and distinct. Germ 4-celled, cells one-seeded, 
insertion superior. Berry one-seeded. Embryo erect, without 
albumen. 
293. CGONGEA TOMENTOSA. 
Involucre 3-leaved, 6-9-flowered. Stigma entire. Leaves op- 
posite, cordate. 
OBSERVATIONS. 
An immense climbing shrub; or, I may say, tree; a native of 
the forests of Chittagong, where it blossoms in March. 
Bark of the large trunk, and old ligneous branches scabrous and 
ash-coloured : of young shoots tomentose. 
Leaves opposite, short-petioled, cordate, entire, more or less vil- 
lous according to age; 4-6 inches long, by 3-4 broad. Floral 
leaves small, and very downy. 
Panicles axillary and terminal; composed of many, ascending, 
opposite pairs of tomentose branches, giving support to the 
opposite, single, peduncled umbellets of sinall white flowers. 
Bractes from oblong to cordate, very downy, solitary, sessile, one 
at the base of each peduncle. 
Involucre 3-leaved, 6-9-flowered ; leaflets elliptic, downy, pink- 
coloured; some few of them emarginate ; length above one 
inch, and above half an inch broad. 
Perianth tubular, very hairy, 5-toothed. 
Corol ; tube length of the calyx: border bilabiate: exterior lip very 
long, and bifid ; under or rather intertor of three, oval, equal, 
sessile, segments. 
Filaments didynamous, very long, greatly exceeding the exterior 
lip of the corol, variously bent. Anthers 2-lobed. 
Germ subturbinate, &c. kc. exactly as in the former species. 
Pericarpium not seen. 
294. AMBROSINIA CILIATA. 
Leaves sword-shaped ; spathe shorter than the leaves, with a tu- 
bular base, and expanding ciliated apex. 
OBSERVATIONS. 
Found on the wet banks of rivulets, ponds, kc. near Calcutta. 
Flowering time the hot season. 
