Vanilla. | CXXXIII. ORCHIDEÆ (ROLFE). 179 
8. V. grandifolia, Lindl. in Journ. Linn. Soc. vi. 138. Leaves 
petiolate, broadly elliptic-ovate or suborbicular, suddenly narrowed 
near the obtuse apex, 6-8 in. long, 4-5 in. broad. Racemes 4 in. long. 
Bracts ovate-oblong, obtuse, 6 lin. long. Pedicels 24 in. long. Sepals 
and petals oblong-lanceolate, obtuse, 2} in. long. Lip subentire? un- 
dulate, 2 in. long; nerves of the disc thickened above; crest composed 
of numerous capillary appendages. Column 1} in. long ; rostellum 5 lin. 
long. Capsule elongate, rather stout, 6-10 in. long.—Rolfe in Journ. 
Linn. Soc, xxxii. 458. 
Lower Guinea. Princes Island, Barter, 1981! Monteiro! Henriques ! 
A very distinct species. The lip of the only flower seen is somewhat broken in 
front, so that its exact shape cannot be made out. 
9. V. Roscheri, Reichb. f. in Linnea, xli. 65. Stem stout, leaf- 
less. Racemes peduncled, many-flowered. Pedicels 14 "mn. Jong, Bracts 
triangular, acute, very small. Sepals lanceolate-oblong, subobtuse, 
3-3¢ in. long. Petals elliptic-oblong, 3-3} in. long, rather broader 
than the sepals. Lip entire, broad, obtuse or apiculate, undulate, 
24-23 in. long; disc with two puberulous lines extending from the 
middle to the base. Column clavate, 1 in. long. Capsule elongate- 
linear, 6-7 in. long.—Rolfe, in Journ. Linn. Soc. xxxii. 475. 
Mozamb Dist. Zanzibar, Roscher, Kirk! 
The following may also belong to this species: Mombasa, Wakefield (a drawing)! 
between Kilimanjaro and the coast, frequent among trees on the margins of maritime 
creeks, Johnston ! Giryama and Shimba Mts., near Mombasa, Taylor ! and Samburu, 
Scott-Elliot ! but the materials are hardly sufficient for certain determination, 
Remarkable for its leafless habit, and large white flowers. 
V. sp., Kränzl, in Mittheil. Deutsch. Schutzg. ii. (1889), 161, from Batanga, 
near Kribi, is a barren specimen which I have not seen, but may belong to one of the 
preceding species, 
21. CORYMBIS, Thou.; Benth. et Hook. f. Gen. Pl. iii. 591. 
Sepals and petals narrow and approximate below, somewhat dilated 
and spreading above. Lip erect from the base, linear, channelled, 
dilated at the apex into a short recurved limb. Column elongated, 
erect, terete, clavate at the apex, terminating in two erect lobes or 
auricles ; clinandrium short. Anther erect, narrow, acuminate, about 
as long as the column ; cells contiguous; pollinia granular, affixed to a 
subulate stipes, with a peltate gland, descending behind the rostellum. 
Stigma broad, often thickened at the lower margin; rostellum erect, 
acuminate, bifid after the removal of the pollinia. Capsule linear, 
subterete, crowned with the column and the remains of the persistent 
perianth.—Tall, erect, terrestrial herbs, with leafy, sometimes branched 
stems, and numerous fibrous roots. Leaves large, elliptic-lanceolate, 
acute, plicate-veined, sessile or petiolate, enlarged at the base into an 
amplexicaul sheath. Flowers large or medium-sized, loosely arranged 
in short, subcorymbose, axillary or terminal panicles or racemes. 
Bracts small, ovate. 
