Listrostachys| III, ORCHIDEA, 11 
the green gynandrium, with subfleshy membranous white bracts. 
Outer perianth-leaves concave, forming with the inner a hood; lip 
descending. Ovary acutely angled, straight, not twisted. Bracts 
broad, sheath-like, dull-coloured, scarious. Plentiful on the lichen- 
covered bark of Mimosas (Muzamba) in the Panda forests, near the 
age aoe of the Cuanza, and on Calemba Islands. March 1857. 
o. 677. 
9. MYSTACIDIUM Lind1.; Benth. & Hook.f. Gen. Pl iii. p. 584. 
1. M. xanthopollinium Durand & Schinz, Consp. Fl. Afr. v. 
p. 55 (1895); Rolfein Fl. Trop. Afr. vii. p. 173. 
M. erythropolliniwum Durand & Schinz, lc, p. 52. <Aéranthus 
xanthopollinius Rehb. f. in Flora 1865, p.190. A. erythropollinius 
Rehb. f., Zc. 
GoLunGo ALTO.—Stem hard, woody, 8 to 5 ft. high ; leaves shining 
above, glaucous-green beneath. Flowers in nodding racemes, 2 to 4 in. 
long, looking as if made of white wax. Plentiful in dense woods, 
covering the Adansonia stems with a thick beard ; especially on river 
banks. In fl. Cuango river, end of March 1856. No. 665. Forming dense 
‘thickets on the thicker branches of trees, with far-descending branches, 
‘branchlets and very long branching aérial roots. Flowers like wax, a 
very pale sulphur-white, with but little scent. Primitive woods of 
Mata de Pungo and near Cabondo. In fl. April 1857. No. 678. 
Trise 11. NHOTTIE LZ. 
10. CORYMBIS Thou. ; Benth. & Hook. f. Gen. Pl. iii. p. 591. 
1. C. Welwitschii Rchb. f. in Flora 1865, p. 183; Durand & 
‘Schinz, Consp. Fl. Afr. v. p. 56; Rolfe in Fl. Trop. Afr. vii. p. 180. 
CazeNnco.—A terrestrial herb 23 to 3 ft. high, with the habit of 
Cephalanthera. Stem hard, very tough. Leaves almost always 
devoured or mutilated by insects, papery, dark green. Flowers whitish- 
green. Outer perianth-segments herbaceous-green, linear-spathulate, 
equal, the two inner of the same shape but whitish-green, all 
membranous subflaccid ; column snow-white, rather fleshy. In very 
‘lofty primeval woods on Mt. de Muxaula, in especially shady places, 
but very rarely met with. In fl, 17 June 1855. No. 668. In espe- 
‘cially shady places on Mt. Cungulungulo, leaves only, 1 Feb. 1855. 
No. 667. 
11. ZEUXINE Lindl.; Benth. & Hook. f. in Gen. Pl. iii. p. 599. 
1. Z. africana Rehb. f. in Flora 1867, p. 103; Durand & Schinz, 
‘Consp. Fl. Afr. v. p. 57; Rolfe in Fl. Trop. Afr. vii. p. 181. 
Gotuneo ALTO.—A span high, erect. Caudex subterranean, creeping, 
fleshy, sending out cylindrico-clavate tubercules. Stem cylindrical, 
reddish at the base, ringed with the bases of scales, becoming glaucous 
above. Leaves linear, erecto-patent, glaucous, with a long-sheathing 
base. Flowers whitish-green. Bracts foliaceous. Apparently very 
rare in reedy boggy places on the banks of the Coango; a single 
‘specimen in flower, and a second with no flower at the end of 
Feb. 1856. No. 669. 
