Habenaria. | CXXXIII. ORCHIDEE (ROLFE). 229 
51. H. æquatorialis, Rendle in Journ. Linn. Soc. xxx. 391. 
Plant rather strong, about 20 in. high. Tuber ovoid, 2 in. long 
Radical leaves 2, large, orbicular, 3 in. broad ; cauline sheath-like below 
distant, linear-lanceolate or lanceolate, 1 in. long, bract-like above, 
acuminate, decreasing upwards into the flowering bracts. Spikes oval 
or oblong, 21 1 in. long. Bracts lanceolate, acuminate, 7-9 lin. long. 
Pedicels $ in. long. Flowers 13 lin. diam. Dorsal sepal ovate, obtuse 
5 lin. long; lateral spreading, obliquely ovate, subacute, broader than 
the dorsal, 6 lin. long. Petals bipartite; posterior lobe linear-falcate, 
acute, 45 lin. long; anterior lobe rather narrower than the posterior 
5 lin. long. Lip tripartite ; side lobes linear-filiform, DÄ lin. long; 
front lobe broadly linear, subacute, longer than the side lobes; spur 
18-20 lin. long, rather slender; apex acute. Stigmatic processes nearly 
straight, clavate, 14 lin. long. Anther channels elongate, slightly 
longer than the stigmas. Rostellum with a long, acute, triangular 
apex, elongate above the rounded anther. 
Mozamb. Dist. German East Africa: between Umyamwezi and the coast, 
Taylor ! 
52. H. macrura, Kriinzl. ex Engl. Hochgeb. Fl. Trop. Afr. 183. 
Plant 14-1} ft. high. Leaves 2, radical, suborbicular, obtuse, 14-24 
in. long; sheaths oblong, subobtuse, decreasing upwards, sometimes 
with one or two of the lower somewhat leaf-like. Racemes with 
3-6 large flowers. Bracts ovate, subacute, 7—12 lin. long. Pedicels 
1}-2 in. long. Dorsal sepal broadly ovate, cucullate, subobtuse, 54 lin. 
long; lateral obliquely semiovate-oblong, subobtuse, 6 lin. long. Petals 
bipartite; posterior lobe ovate, subobtuse, 54 lin. long; anterior lobe 
obovate-lanceolate, subobtuse, longer than the posterior. Lip trilobed, 
from a short entire base; lobes broadly oblong, obtuse, 6-7 lin. long; 
front lobe a little narrower and longer than the side lobes; spur about 
6 in. long, filiform below, slightly thickened above. Stigmatic pro- 
cesses clavate, slightly curved, 23 lin. long. Anther channels shorter 
than the stigmas. Rostellum triangular-subulate, shorter than the 
anthers.—Krinzl. in Engl. Jahrb. xvi. 152. 
ee Guinea. Congo: Stanley Pool, Callewaert ! Angola: Malange, Mechow, 
53. H. thomana, Deich, f. Otia Bot. Hamb. ii. 97. Plant 14-2. 
ft. high. Leaves radical, lanceolate or oblong-lanceolate, acute, attenuate 
into a short, sheathing base, 4-10 in. long, 1}-2} in. broad. Racemes 
6-12 in. long, lax, many-flowered. Bracts lanceolate or ovate-lanceolate, 
acuminate, 7-12 lin. long. Pedicels 7—10 lin. long. Dorsal sepal 
elliptic-oblong, obtuse, 21-3 lin. long; lateral subobliquely ovate- 
oblong, obtuse, 3-34 lin. long. Petals bipartite; posterior lobe falcate- 
linear, subobtuse, 3 lin. long, appressed to the margin of the dorsal 
sepal; anterior lobe triangular-subulate, acute, subfalcate, 3—1 lin. long. 
Lip tripartite; side lobes falcate-linear, gradually thickened “upwards 
and truncate, 34—4 lin. long; front lobe linear-filiform, 33-4 lin. long; 
Spur 6-8 lin. long, slender below, thickened above the middle, thence 
