Cheirostylis.] cxxxiii. orchide^ (rolfe). 183 



4-6 in. long, pubescent ; racemes congested or subcapitate, h-1 in. long. 

 Bracts lanceolate, acuminate, 2^-3 J lin. long. Flowers wiiite. Sepals 

 and petals united below into a short tube, | lin. long, sparingly pilose ; 

 apex of the segments free, ovate-triangular, subobtuse, | lin. long. 

 Lip 2 lin. long, with a subsaccate claw; limb divaricately bilobed, 1 J 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 lepidits, Keichb. f. Otia Bot. Hamb. ii. 110. 

 Zeuxine lepida, Benth. ex Rolfe in Bolet. Soe. Brot. ix. 142; Durand k 

 Schinz, Conspect. Fl. Afr. 57. 



Upper Guinea. Sierra Leoiife : Sugar-loaf Mountain, on rocks near the top 

 very common, Scott-Elliot, 4027 ! Cameroon Mountains, 3000 ft., Mann, 2130 ! 



Iiower Guinea. Island of St. Thomas : 2900 ft., Quintas, 2 ! 



This has the sepals connate into a tube and other characters of Cheirostylis, to 

 which genus it must be referred. 



2. C. heterosepala, Reichh. f. Otia Bot. Hamh. ii. 110. Plant 

 4-6 in. high; stems creeping at the base. Leaves several, petiolate, 

 ovate or ovate-oblong, subacute, J-lJ in. long, J- J lin. broad ; petioles 

 5-6 lin. long, broadly sheathed at the base. SScapes 1-2 in. long, 

 pubescent ; racemes short, many-flowered. Bracts ovate-lanceolate, 

 actiminate, 2-3 lin. long. Pedicels 2J lin. long. Dorsal sepal cohering 

 with the petals into an ovate-orbicular, obtuse galea, 2 lin. long ; lateral 

 obovate, obtuse, 1\ lin. long. Lip IJ 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., Mann, 2130, partly ! 



Iiower 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. HETJERIA, Blume; Benth. et Hook. f. Gen. PL 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 crasts or appendages beneath the stigma ; 

 clinandrium short. Anther erect behind the rostelliun, 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 



