140 ORCHIDS OF THE CAPE PENINSULA. 
§ 1. Monadenia. 
Spur of the odd sepal shorter than the limb. 
Spur dorsally compressed, emarginate; plant robust D. muxtirtora 1. 
Spur cylindrical, tapering; plant very small.. D. pyemza 2. 
Spur of odd sepal as long as or longer than the limb. 
Spur inflated, short and blunt . ee .. D. cernva 3. 
Spur filiform, shorter than or eqns the anne: 
Flowers very small; less than 4 in. long . ac .. D. micrantua 4, 
Flowers mediocre or large; more than 4 iS long. 
Bracts herbaceous. 
Flowers deep red, or purplish % 3: D. opHRyDEA 5. 
Flowers yellow a . oF os .. D. arrinis 6. 
Bracts membranous, rotionlatad ae 5 D. RETICULATA 7. 
Spur filiform, longer than theovary ..  .. oe D. RUFESCENS 8. 
1. Disa multiflora.—Glabrous, stout, erect, 7-10 in. high; stem 
short, leafy; leaves crowded, linear-lanceolate, acuminate, involute, 
sheathing at base, 2-3 in. long; spike cylindrical, densely many- 
flowered, 4-5 in. long, 4-1 in. thick, with ovate acuminate bracts as 
long as, or sometimes much longer than, the flowers; side sepals 
oblong, obtuse, recurved, about 24 lines long; odd sepal arched, 
limb broadly oblong, obtuse, apiculate, as long as the side sepals, with an 
inflated, dorsally compressed, obtuse, emarginate spur of about 14 lin. 
long; petals faleate, acute, fleshy, small; lip tongue-shaped, or linear- 
oblong, a little narrowed in the middle, 3 lines long; column ascend- 
ing, with a high rostellum ; its arms produced forward and backward ; 
stigma large, sloping. Monadenia multiflora, Sonder, in Linnea, 
vol. xix (1847), p. 101. 
Has. Sandy places on the flats near Claremont, and on the lower slopes of 
Table Mountain above Wynberg, up to 600 ft.; fi. Nov., Bolus, 4885; near Hout’s 
Bay, fi. Oct., Dr. Marloth, in herb. Bolus, 4972 ; Zeyher, 1564, ex parte. 
The odd sepal is a dull red, the rest of the flower a pale yellow. 
Most nearly allied to M. micrantha, from which it differs by its usually 
shorter stem, denser spike, larger flowers, proportionately shorter, more 
inflated and more obtuse spur, more obtuse side sepals, and very 
different column. It is not at all a common plant on the Peninsula. 
2. Disa pygmea, Bolus, in Journ. Linn. Soc., vol. xxii. (1885), 
p- 72.—Erect, glabrous, 2-4 in high; scape slender at base, leafy 
below ; lowest leaves 1-2, reduced to sheaths, upper 3-5, ovate, acute, 
or sometimes lanceolate, acuminate, sheathing at base, erect-spreading, 
faintly 3-5 nerved, 4-1 in. long; spike dense, 8-24 flowered, about 
three-fourths of the length of the entire plant; bracts ovate, obtuse, as 
long as the flowers, or lanceolate, acuminate, exceeding the flowers; 
flower, with ovary, 34-44 lines long; side sepals ovate, very obtuse, 
spreading-recurved, 2-23 lines long; odd sepal arched, oblong, obtuse, 
