Listrostachys. | ORCHIDE& (Rolfe). 75 
but with a broader concave base, rev olutes spur curved, tapering 
of curved linear stipites to a single oblong gland ; capsule oblong, 
1-1} in. long. Durand & Schinz, Conspect. Fl. A Afr.v.48. Angraecum 
arcuatum, Lindl. in Hook. Comp. Bot. Mag. ii. 204 ; Drege, Zwei 
Documente, 130, 132, 136, 41 : Pact. Fl. mes ii. 120, fig. 199; 
arv. Thes. Cap. il, B, t. 107 ; A Bolus in Journ. Soc. Xxv. 186, 
and Ie. — Austr. Afr. i Oe ee Sthlechion ie in re Jahrb. xx. 
Beibl. 50, 2 
rll obit at locality, Prior! Mrs. Bow 
Div . 
Coast Ree Pee est Hall, Miss ‘Nerd er Uitenhage Div. ; 
og ‘1000- 2000 ft., » Dre ge! limesto © hills near the mouth of the Zwartkops 
River, Drége, 4580 OL Pri or! bills aan River, eles 1117 ! Uitenhage, 
i cpher, 3890 ! Zredgold, 35! Port Elizabet h Div. ; Port Eli zabeth, Mrs. S eeaa 
t Alexandria Div. ; Olifants Hoek, Atherstone, "90! Zuurberg Range ey 
Ba thurst Div ; Glentilling, Drége! Albany Div. ; wooded cliffs west of f Graha ams- 
town, Bur chell, 359 
CENTRAL EGIO : Somerset Div. ; Somerset East, Bowker ! 
KALAHARI iio: Transvaal ; Golden Valley, Sheba Hill, near Barberton, 
ree ft., Galpin, 850, Culver, 73.  Bawendaland; Zindi River: 2500 ft., 
C1 tan ter, 
STERN ReGion : Pondoland, Zillet! Natal; Inanda, Wood, 927! ares 
Sanderson 893! and without precise locality, Gueinzius ! Peddie! Mrs. K. 
unde 
XI. MYSTACIDIUM, Lindl. 
Sepals and petals subequal, free, spreading or subconnivent. Lip 
aftixed to the base of the column and continuous with it, produced 
at the base into a short or long spur; side lobes small or obsolete, 
envied at the sides of the spur ; limb spreading or erect, generally 
ntire. any vey short, broad, concave in front, without wings 
Sad footless ; ar-hed truncate, entire. Anther terminal, 
operculate, Teatcat convex, often produced in front, scarcely 
2-celled; pollinia 2, globose, sulcate, ibuaéoa upon a pair of slender 
stipites, which are attached to separate oblong or squamiform glands. 
Capsule oblong or fusiform 
Epiphytic herbs ; Hemme leaky, short or long, not thickened into pseudobulbs ; 
leaves distichous, or fleshy, articulated to a_ persistent — 
peduncles lateral, s imple; hoes generally small or medium-sized, racemose 
Solitary ; bracts sticsatty te all. 
Disrris. st amag about 50, African or Mascarene, with a “— outlying repre- 
Sentative in Ceylon, The nine South African species are endem: 
Stems lea afy : 
Rotel without bearded appendage se nee 
Plan th distinct more or ae e ona stems : 
Lip trowel-shaped ; spur falcately incurved .. (1) Gerrardi. 
Lip fan-shaped ; spur slightly incurved ... _... (2) Peglere. 
Plants with very short or nearly obsolete stems : ; 
Leaves 34-5 in. long bias ol Sue dan + ee 
