Megacliniwm. | CXXXIII. ORCHIDEZ (ROLFE). 41 
linear-oblong, subobtuse, scaberulous, 1-1? in. long, 3-4 lin. broad ; 
margin obscurely crenulate. Bracts reflexed, suddenly narrowed from 
a broad base, acute, } lin. long. Flowers 2 lin. apart, reddish-brown, 
with a yellow dorsal sepal. Pedicels puberulous, 1} lin. long. Dorsal 
sepal spathulate-oblong, subobtuse, fleshy, 1} lin. long; lateral ones 
ovate-triangular from a very broad base, acute, reflexed above the 
middle, 1 lin. long. Petals falcate-subulate, 2 lin. long. Lip recurved 
from a broader base, fleshy, } lin. long. Column j lin. long; teeth 
short, obtuse. 
Upper Guinea. Lagos, Millen! 
12. M. falcatum, Lindl. Gen. CG Sp. Orch. 47. Rhizome fairly 
stout. Pseudobulbs about } in. apart, ovoid or ovoid-oblong, obscurely 
4-angled, 3—14 in. long, 2-leaved. Leaves oblanceolate-oblong, obtuse, 
13-3 in. long, 3-6 lin. broad. Scapes suberect, 5-7 in. long, with 
several loose basal sheaths; rhachis linear-oblong, somewhat falcate, 
acute, 2-4 in. long, 3-4 lin. broad; margins thin. Bracts reflexed, 
triangular-oblong from a broad base, acute, 1-1} lin. long. Dorsal 
sepal subspathulate-oblong, obtuse, 24 lin. long ; lateral ones triangular- 
ovate, subobtuse ; apex reflexed, somewhat oblique, 14 lin. long. Lip 
triangular-oblong, obtuse, 3 lin. long. Column stout, 4 lin. long; teeth 
short, triangular-oblong, obtuse. Petals falcate-linear, subobtuse, 1 lin. 
long. Lip triangular-oblong, obtuse, 2 lin. long. Column stout, 
3 lin. long; teeth short, triangular-oblong, obtuse—Lindl. Bot. Reg. 
t. 989; C. Morr. in Ann. Sc. Nat. sér. 2, xix. 91; Ridl. in Bolet. 
oe Brot. v. 198. Bulbophyllum falcatum, Reichb. f. in Walp. Ann. 
vi. 258. 
Upper Guinea. Sierra Leone, Don! Afzelius! Lagos, Moloney ! 
Lower Guinea. Angola: Angolares, Quintus (ex Ridley !). 
13. M. Clarkei, Rolfe in Kew Bulletin, 1891, 198. Rhizome stout, 
creeping. Pseudobulbs 2 in. apart, broadly oblong, acutely 4-angled, 
l in. long, 3 in. broad, 2-leaved. Leaves oblong, obtuse, 2) 27 in. long, 
i-l in. broad. Scape 64 in. long; rhachis faleate-ensiform, obscurely 
repand-crenulate, rather thin, 4 in. long, 4—5 lin. broad. Bracts 
reflexed, broadly triangular, acute, 1} lin. long. Flowers 2-3 lin. apart, 
green, much speckled with purple-brown. Dorsal sepal subulate-linear, 
subacute, scaberulous, 34-4 lin. long ; lateral ones faleate-ovate, acumi- 
nate, 2} lin, long. Petals falcate-linear, obtuse, 2 lin. long. Lip 
recurved ; base ovate ; apex linear, obtuse, 1 lin. long. Column stout, 
5 lin. long ; teeth short, acute. 
West Tropical Africa. Without locality, cultivated specimens ! 
Originally flowered in the collection of Major Trevor Clarke in 1891. 
14. M. melanorrhachis, Reichb. f. in Gard. Chron. 1875, iv. 162. 
Rhizome fairly stout. Pseudobulbs subapproximate, ovoid-tetragonous, 
9 lin. long, 2-leaved. Leaves lanceolate, obtuse, 14-2} lin. long, 24-5 
lin. broad. Scape 2 in. long, with a few basal sheaths; rhachis oblong 
or obovate-oblong, obtuse, thin, obscurely crenulate, slightly scaberulous, 
