Lissochilus. | CXXXIII, ORCHIDEZ (ROLFE). 89 
Lip trilobed, 4 lin. long; side lobes short, broadly rounded; front 
lobe rhomboidal, acute, abruptly reflexed af the sides, simply saccate 
at the base, and with a transverse membrane at the base of the front 
lobe. Column stout, 23 lin. long. 
: Lower Guinea. Angola: Ambaca district ; near Zamba, 3000 ft., Welwitsch, 
676! 
Reichenbach describes the front lobe of the lip as obliquely infolded, In this he 
appears to be wrong, judging by the meagre material at the British Museum. 
50. L. Oatesii, Rolfe in Oates, Matabele Land, ed. ii. 409. Racemes 
10 in. long, many-flowered. Bracts broadly ovate or ovate-oblong, 
obtuse, 24-4 lin. long. Pedicels 8-10 lin. long. Sepals suborbicular 
or obovate-elliptical, apiculate, 7-8 lin. long. Petals orbicular, 8—9 lin. 
long. Lip trilobed, 7-8 lin. long; side lobes obovate-elliptical, obtuse ; 
front lobe obovate-orbicular; disc with a few verrucose nerves in front 
of the spur; spur conical-saccate, obtuse, 14 lin. long. Column stout, 
4 lin. long. 
Mozamb. Dist. British Central Africa: Matabele Land, Oates ! 
51. L. malanganus, Reichb. f. in Flora, 1882, 533. Leaves linear- 
lanceolate, with a very long acumination. Racemes lax. Flowers of 
the size of those of ZL. Xrebsii, Reichb. f., membranous. Sepals ligulate, 
acute. Petals elliptical. Lip elongate, trilobed; side lobes obtuse- 
angled; front lobe extending forwards, ligulate, obtuse; spur conical, 
acute, slender, much shorter than the pedicel. 
Lower Guinea. Angola: Malange, Mechow, 290, 365. 
Only known to me from the original very imperfect description, in which it is said 
to have no affinity with any other species. Durand & Schinz (Conspect. Fl. Afr. v. 29) 
confound this with the quite different Z. malangensis, Reichb. f. 
52. L. paiveanus, Reichb. f. in Flora, 1865, 187. Scape 2 ft. or 
more high; base not seen; racemes 9-12 in. long, many-flowered. 
Bracts oblong-lanceolate or ovate-lanceolate ; acuminate, 6-9 lin. long. 
Pedicels 8-10 lin. long. Sepals elliptic-oblong or oblong, acute, 7-9 
lin, long. Petals orbicular-ovate, apiculate or subobtuse, 7-8 lin. long. 
Lip trilobed, 6-7 lin. long; side lobes broadly oblong or suborbicular- 
oblong, obtuse ; front lobe broadly elliptical or ovate-elliptical, obtuse, 
convex with reflexed sides; disc with 3 obscurely crenulate keels; spur 
conical-oblong, obtuse, 3 lin. long. Column stout, 4 lin. long. 
Lower Guinea, Angola: Huilla, frequent in sandy thickets, Welwitsch, 731! 
Var. stenophyllus, Reich. f. in Flora, 1867, 105. Leaves linear-lanceolate, acute, 
1-1} in. long. Scape 24 ft. long, with several bracts below; racemes 1 ít. long, 
many-flowered, Bracts 4—9 lin. long, linear lanceolate, long acuminate. Pedicels 
7-8 lin, long. Sepals oblong-lanceolate, acuminate, 6 lin. long. Petals broadly ovate, 
5 lin, long. Lip trilobed, 5 lin. long ; side lobes oblong, obtuse, 33-4 lin. long; front 
lobe broadly ovate, subobtuse, with strongly reflexed sides; dise with about 3 slightly 
a nerves ` spur obtuse, 14 lin. long, slightly curved. Column clavate, 23 lin, 
ong. 
_ Lower Guinea. Angola: Pungo Adongo; at the base of Pedra Pungo, in stony 
thickets, rare, Welwitsch, 690! 
