CERATANDRA. 189 
§ 8. Micranthum. 
8. Pterygodium carnosum, Lindley, Gen. d& Sp. Orch. (1889), 
p. 867.—Seven to fourteen inches high ; stem leafy, straight or some- 
what flexuous ; leaves 4-5, from a broad sheathing base, linear, acumi- 
nate; spike densely many-flowered, 2-6 in. long, bracts ovate, acute, a 
little longer than the ovary; odd sepal ovate, subacute; side sepals ovate- 
oblong, subacute, ascending close under the hood; petals semiorbicular, 
very concave, the mouth of the hood about 3 lines wide; limb of 
the lip somewhat transversely crescent-shaped, the base wide, the 
points obtuse, notched in the middle, appendage galeate, bent forward 
and rounded in the middle, point beak-like, obtuse; rostellum with 
slightly ascending arms, anther-cells much curved outwardly ; stigmas 
2, distant, cushioned, tuberculated ; a row of thick hyaline hairs at the 
base of the column on the posterior side. 
Has. Moist places on mountain-tops, Muizenberg, 1300 ft.; more rarely on 
Table Mt., up to 3550 ft., fl. Nov. —Dec., Bolus, 3879, 4547; Herb. Norm. Austr.- 
Afr., 182.—Extends to Jonkershoek, Stellenbosch.—Zeyher, 3950. 
The petals are a light or dark purplish colour, the limb of the lip 
nearly white. The small flowers are quite different from any others 
in the genus, and very much resemble in shape those of a Corycium, 
so that the plant is frequently mistaken by beginners for one of that 
genus. The basal tuft of hairs to the column is also unique ; Lindley 
described the petals as pubescent, but I have only seen glabrous 
specimens. The whole plant turns very black in drying. The species 
is well-marked, and often abundant, especially on Muizenberg. 
Puate 12.—Fig. 1, flower, with ovary, front view, x 4 diameters; 2, odd sepal 
with petals, expanded forcibly, back view, x 4; 3, a petal, x 4; 4, a side sepal, 
x 4; 5, lip and column, viewed from above; 6, lip, side view; 7, column, the lip 
being removed, back view; 8, a pollinium and single granule,—all the latter 
variously magnified. 
XL—CERATANDRA. 
Ecklon ex Lindley, Gen. & Sp. Orch. (1888), p. 8363; Bentham & Hooker f., 
Gen. Plant., vol. iii. (1883), p. 634. 
Odd sepal posticous or anticous, narrow, cohering with the wider 
petals into a single concave, spreading, or deflexed, rarely erect piece ; 
side sepals broad, free, erect or spreading. Lip adnate to the column 
between the arms of the rostellum, the limb lunate, hastate, or 
rhomboidal, nude or tuberculate, ascending or deflexed, swollen and 
bossy at the base, or more rarely produced above the junction with the 
column into a variously shaped fleshy appendage. Rostellum ascending, 
the lateral lobes produced into two erect, distant, nearly parallel, 
horn-like arms, or less commonly abbreviated and expanded laterally, 
each lobe bearing a cell of the erect, inverted anther along its outer 
