Safyrmm] iii. orchide.e. 17 



clothed from base to apex with long-sheathing leaves bearing acutely 

 prominent nerves. Spike pyramidal ending in a tuft of empty bracts, 

 the whole excepting the ovaries a shining milk-white. Bracts at first 

 erect, then just about flowering time spreading, finally subpendulous, 

 far exceeding the ovaries, white, very acuminate, traversed by raised 

 nerves ; ovaries oblong, scarcely twisted, densely hairy. Two outer 

 lateral perianth-segments flat, tube helmet-shaped with two dorsal 

 basal spurs ; two inner segments flat, narrow, looking forwards along 

 with the strap-shaped lip, forming as it were a deeply trifid lip. 

 Rather rare in sunny marshy places by streams near LopoUo. In 

 fl. and fr. Nov. 1859. No. 728. 



2. S. paludosum Rchb. f., I.e. ; Durand &, Schinz, I.e., p. 97. 

 HuiLLA. — A narrowly erect slender herb with two tubers, white 



flowers and dull purple bracts. Here and there by the stream of 

 Ferrao da Sola, near Lopollo, in marshy meadows. Jan. 1860. No. 727- 



3. S. Welwitschii Rchb. f., I.e. ; Durand & Schinz, I.e., p. 99. 

 HuiLLA. — A herb 2 ft. and higher, with the habit of Orchis latifolia, 



stem somewhat hollow, and like the leaves herbaceous-green ; flowers 

 spotted with violet-purple : bracts purplish-green, acute, elongated, 

 originally crowded and crest-like. A variety with milk-white flowers 

 and a denser spike is also found. In marshy places by streams near 

 Huilla, growing with Bnnunculus piitnati(H and SaV.v hexnndra ; in 

 fl. Nov. 1859. Marshy places near Lopollo, Dec. 1859 ; Varzea do 

 Ferrao da Sola, Nov. and Dec. 1859. No. 726. 



4. S. Ivantalae Rchb. f., I.e., p. 183 ; Durand & Schinz, I.e., p. 96. 

 Huilla. — A herb with two tubers, with the habit of Orchis milifrtris,. 



H to 2 ft. high, the young tuber generally stalked, spherical, the older 

 ovate, abruptly acuminate. Stem cylindrical, not very solid, leafy 

 below, clothed above with sheath-like leaves. Lower leaves long- 

 sheathing, elliptical or ovate-elliptical, rather fleshy, leathery, shining 

 bright green, distantly nerved, paler beneath, 3 to 7 in. long, between 

 erect and spreading, the upper ones appressed ; bracts greenish-purple 

 deflexed at flowering time ; perianth white, with rose-coloured or 

 rose-purple streaks, two-spurred ; posterior lip concave, white on the 

 outside, streaked inside with rose-purple ; segments all white with 

 rose-coloured streaks, linear-spathulate. Somewhat plentiful in marshy 

 places round the great lake of Ivantala, March 1860. Plentiful in 

 grassy marshy places between Quilengues and Ivantala, Feb. 1860. 

 No. 729. 



5. S. riparium Rchb. f., I.e. ; Durand & Schinz, I.e., p. 98. 

 Huilla. — A herb with two tubers, H to 2 ft. high, with strict habit ; 



radical leaves two, cordate-ovate, subfleshy, apjiressed to the ground, 

 cauline short with long sheaths ; perianth a waxy-yellow ; posterior 

 segment with two spurs, spurs long, cylindrico-subulate. Very sparsely 

 on the banks of streams at Humpata. Going ofi" flower Jan. 18G0. 

 No. 730. 



16. DISA Berg. ; Bentb. & Hook. f. Gen. PL iii. p. 630. 



1. D. ochrostachya Rchb. f. in Flora 1865, p. 181 ; Durand c<c 

 Schinz, Consp. Fl. Afr. v. p. 105. 



Huilla. — A herb with two tubers, flowers yellowish-white ; bracts 

 reddish, very beautiful. Morro de Lopollo ; Monino ; Jan., Feb. 1860. 

 No. 712. 



VOL. IT. 2 



