Cheirostylis. | CXXXIII. ORCHIDEH (ROLFE). 183 
4—6 in. long, pubescent; racemes congested or subcapitate, 4—1 in. long. 
Bracts lanceolate, acuminate, 24-34 lin. long. Flowers white. Sepals 
and petals united below into a short tube, 3 lin. long, sparingly pilose ; 
apex of the segments free, ovate-triangular, subobtuse, 3 lin. long. 
Lip 2 lin. long, with a subsaccate claw; limb divaricately bilobed, 14 lin. 
long ; lobes quadrate, crenate ; claw with a pair of linear calli at the 
base. Column very short; arms linear-falcate, nearly as long as the 
column.—Monochilus lepidus, Reichb. f. Otia Bot. Hamb. ii. 110. 
. Zeuxine lepida, Benth. ex Rolfe in Bolet. Soc. Brot. ix. 142; Durand & 
Schinz, Conspect. PL Afr. 57. 
Upper Guinea. Sierra Leone: Sugar-loaf Mountain, on rocks near the top. 
very common, Scott-Elliot, 4027 ! Cameroon Mountains, 3000 ft., Mann, 2130! 
Lower Guinea. Island of St. Thomas: 2900 ft., Quintas, 2! 
This has the sepals connate into a tute and other characters of Cheirostylis, to 
which genus it must be referred. 
2. C. heterosepala, Reichb. f. Otia Bot. Hamb. ii. 110. Plant 
4-6 in. high; stems creeping at the base. Leaves several, petiolate, 
ovate or ovate-oblong, subacute, 4—14 in. long, 4—4 lin. broad; petioles 
5-6 lin. long, broadly sheathed at the base. Scapes 1-2 in. long, 
pubescent ; racemes short, many-flowered. Bracts ovate-lanceolate, 
acuminate, 2-3 lin. long. Pedicels 24 lin. long. Dorsal sepal cohering 
with the petals into an ovate-orbicular, obtuse galea, 2 lin. long; lateral 
obovate, obtuse, 1} lin. long. Lip 14 lin. long, with a broad, saccate 
base, partly adnate to the column, and 2 diverging, orbicular lobes at 
the apex, 1 lin. broad. Column short; arms of the rostellum linear, 
obtuse, slightly curved; calli 2, linear-clavate at the base of the sac.— 
Rolfe in Bolet. Soc. Brot. ix. 142. 
Upper Guinea. Cameroon Mountains, 3000 ft., Wann, 2130, partly ! 
Lower Guinea, Island of St. Thomas, 2800 ft., Quintas, 3! 
The lateral sepals are free to the base, which is unusual, but it agrees with the 
genus in every other respect. 
24. HET ARIA, Blume; Benth. et Hook. f. Gen. PI. iii. 603. 
Sepals free or shortly united at the base, connivent or ultimately 
Spreading, equal or the lateral a little broader. Petals narrow or 
broader at the base, often adhering to the dorsal sepal. Lip usually 
superior, erect from the base of the column, broadly ventricose at the 
base, with the margin often more or less adnate to the column, villous 
or with 2 calli inside; limb entire or divaricately bilobed. Column 
short, often with a pair of small crests or appendages beneath the stigma ; 
clinandrium short. Anther erect behind the rostellum, or somewhat 
inclined in front; cells distinct ; pollinia sectile, attached to a slender 
stipes with a small oblong gland, descending behind the rostellum. 
Stigmas 2, lateral; rostellum erect, linear, bifid after the removal of 
the pollinia. Capsule erect, ovoid or oblong.—Terrestrial herbs, with 
creeping rhizomes, and ascending or erect, simple, leafy stems. Leaves 
