DISA. 161 
Peninsula; I have never yet gathered it here, but I include it without 
hesitation on the authority of Dr. Harvey, and have little doubt that 
it will again be detected within our limits. 
15. Disa tenuicornis, Bolus, in Journ. Linn, Soc., vol. xxii. (1885), 
p. 68.—Glabrous, erect, 6-15 in. high; stem leafy, covered with imbri- 
cating sheaths; leaves lax, linear, acuminate, loosely sheathing at 
base, erect, the lower sometimes narrowed in the middle, 3-5 in. long, 
the upper gradually smaller, scarcely reaching to the base of the 
spike; spike somewhat dense, in length from a third to half the 
height of the plant; bracts ovate, with a long curved cusp, mem- 
branaceous, netted-veined, about as long as the flowers; odd sepal 
galeate, incumbent, obovate, obtuse, apiculate, 7 lines long, with two 
sacs at base, from between which protrudes a straight filiform spur 
about 23 lines long; side sepals falcate-ovate, acute, oblique at base, 
bent downwards, 5 lines long; petals minute, oblong, horizontal, with 
an ascending lobe at the top, adnate to the column; lip subulate, 
widened above the base, acute, 5 lines long; rostellum short, erect, 
entire, the glands of the pollinia close together, with a tubercle on 
either side; anther horizontal; stigma hollowed; ovary cylindrical, 
5-6 lines long. 
Has. In clefts of rocks on the lower plateau of Table Mt., near the Breakfast 
Camp on the Hout’s Bay Stream, at a height of 2500 ft., flowering in Oct. Bolus, 
No. 4967 ; Herb. Norm. Austr.-Afr., 407. 
Flowers white, the galea spotted, and the other parts margined with 
blood-red, with which also the ovaries, bracts, and rhachis of the spike 
are more or less tinged. The species is very distinct, in general habit 
most nearly resembling luxuriant specimens of D. tabularis, Sonder, 
but readily distinguished froin that by its twice larger flowers, and its 
thin, straight, intrusely-set spur. This species was first seen by me 
in the year 1884, and for a long time I could find no previous record 
of its discovery. In 1888, however, I found a drawing of a somewhat 
poor specimen amongst a collection of very interesting water-colour 
drawings made by Masson at the Cape between 1787-95, and pre- 
served in the British Museum, South Kensington. There was, how- 
ever, no record upon it of the station where it was found. It is strange 
that it was never gathered by Sparrman, Thunberg, Burchell, Drége, 
Kceklon, Harvey, or Pappe,—all of whom collected on Table Mt. 
Prats 14.—Figs. 1, 2, flowers, front and oblique view, x 3 diameters; 3, odd 
sepal, x 3; 4, lip, x 3; 5, side sepal, x 3; 6, side petal; 7, column with side 
petals; 8, ditto, side view, with one petal removed, all variously magnified. 
16. Disa tenella, Swartz, in Kongl. Vet. Acad. Handl., vol. xxi. 
(1800), p. 212.—Glabrous, erect, 2-5 in. high; stem leafy; leaves 
mostly radical, many, from a broad sheathing base, narrow, linear, 
