156 ORCHIDS OF THE CAPE PENINSULA. 
Has. Moist grassy places on the eastern sides of Table Mountain, 800 ft., and 
on the lower plateau, 2500 ft.; fl. Dec—Jan.; Bolus, 4888; Zeyher, 3915.— 
Extends eastward to Swellendam (Burchell, 7408) and to Grahamstown (MacOwan 
387). 
The colour of the flower is a beautiful rose, with darker, fine veins, 
the front edges of the petals crimson or purple, their inner surface 
yellow, with purple stripes, the column a pale purple. In habit and 
external appearance it closely resembles the following species. 
I have seen a single plant with the general habit of this and the 
next species, but with flowers very different in their structure, and 
which, if they were constant, would constitute a very distinct species. 
This is uncertain, and it is safer to regard it for the present as a variety 
or sport :— 
Var. IsoPETALA.—Side sepals ovate-oblong, acute; odd sepal ovate 
acute; petals ovate-oblong, nearly flat, erect, subobtuse, veined, free at 
the base, nearly as long as the back sepal, 11 lines long, 6 lines wide; 
lip like the side-sepals, but obtuse, about 9 lines long, 5 lines wide; 
rostellum with two parallel, approximate, erect-recurved processes 
between its arms, in addition to the petaloid appendage below the 
anther, as in the typical form; stigma furnished at base with a 
petaloid, linear, emarginate, projecting appendage, 14 lines long. 
Has. Valley on the lower plateau of Table Mountain, above Klassenbosch, 
2400 ft.; Jan. 5, 1885; A. A. Bodkin (No. 7033 in herb. Bolus). 
Colour delicate rose, with darker tips to the side-sepals. There 
were three flowers on the scape, all of which appeared to have the 
same structure. 
22. Disa venosa, Swartz, in Kongl. Vetensk. Acad. Handl. vol. xxi. 
(1800), p. 218, not of Lindley.—Glabrous, erect, 12-15 in. high; stem, 
leaves, sheaths, and bracts nearly as in the preceding, but mostly more 
slender and smaller; raceme distantly 2-4-flowered; side-sepals oblong, 
subacute, mucronulate, waved, horizontally spreading, about 10 lines 
long; odd sepal rhomboid-cuneate in outline, concave, acute, with a 
blunt dorsal sac 3-4 lines deep just below the middle; petals standing 
out in front of the back sepal, meeting and arching over the anther, 
oblong, incurved and toothed at the apex, adnate to the column at base, 
with a prominent lobe on the front margin; lip linear-subulate, acute, 
about 5 lines long; rostellum similar to the preceding, but the glands 
lateral, turned inwards and facing each other, with a petaloid appendage 
as in the preceding. Thunberg, Flor. Cap., ed. 1823, p. 15. 
Has. Moist grassy places on the lower plateau of Table Mountain, 2400 ft. ; 
fl. Dec. ; Bolus, 4845.— Extends eastward to Du Toit’s Kloof (Drege, 12394) and 
Port Elizabeth. 
Colour very nearly as in the preceding species, to which this bears 
a strong resemblance, but may always be distinguished by its narrower, 
