Lissochilus. | CXXXIII. ORCHIDEX (ROLFE). 83 
30. L. Roscheri, Reichb. f. Otia Bot. Hamb. i. 62. Leaves 
linear, acuminate. Racemes few-flowered. Flowers small, lilac. 
Sepals triangular, acuminate, 6 lin. long, 14 lin. broad at the base. 
Petals elliptical, 6 lin. long, 14 lin. broad. Lip pandurate, ł in. long; 
side lobes very broad, obtuse-angled ; front lobe distinctly narrower 
than the side lobes, emarginate or bilobed ; dise with 4 small keels at 
the base in front of the spur ; spur obtuse. Anther obtuse, conical, not 
horned. 
Nile Land. British East Africa: Jur; at Bongo on the river Gefal, 
Heuglin. 
Mozamb. Dist. Zanzibar, Roscher. 
Only known to me from the original deseription, but is possibly a small-flowered 
form of the variable Z. arenarius, Lindl., as the description does not indicate any very 
-essential difference. 
31. L. dilectus, Reich. f. Otia Bot. Hamb. i. 62. Rhizome stout. 
Leaves petiolate, lanceolate, acuminate, 9—12 in. long, 4-14 in. broad. 
Scapes 21~3 ft. high ; racemes 6 in. long, about 4—9-flowered. Bracts 
linear-lanceolate, acuminate, 4-1 in. long. Pedicels 1-1} in. long. 
Sepals triangular-lanceolate, acuminate, undulate, 10-12 lin. long. 
Petals broadly elliptical, obtuse, 11-12 lin. long, 8-9 lin. broad. 
Lip broadly pandurate or trilobed, 15-18 lin. long; side lobes rounded ; 
front lobe very broadly obovate, truncate or emarginate at the apex; 
‘dise with a pair of quadrate calli in front of the spur; spur saccate, 
obtuse, 3—4 lin. long. Column clavate, incurved, 8 lin. long.—Z. arena- 
rius, Reichb. f. in Flora, 1865, 188 (not Lind1.). 
Lower Guinea. Angola: Pungo Adongo; Cuanza River and Luxillo River, 
-3800 ft., in thickets, Welwitsch, 686 ! 
Very near Z. arenarius, Lindl., but differs in its broader leaves, which appear 
‘with the inflorescence, and in its usually larger flowers. 
Var. minor, Reichb. f. in Flora, 1882, 533. Plant smaller and more slender. 
Leaves only half as broad. Lip with more slender calli. 
Lower Guinea. Angola: Malange, Mechow, 314, 528. 
32. L. Monteiroi, Rolfe. Pedicels 1} in. long. Sepals lanceolate- 
‘oblong, acute or shortly acuminate, 16-17 lin. long. Petals suborbicu- 
lar-elliptical, 15-16 lin. long. Lip broadly pandurate or trilobed, 16— 
17 lin. long; side lobes broadly rounded; front lobe transversely 
oblong, truncate or retuse; dise with a pair of large, narrow, rounded 
‘calli in front of the spur, and 1-2 narrow, crenulate keels on the base of 
the front lobe ; spur saccate, very obtuse, 3 lin. long. Column clavate, 
11 lin. long. 
Lower Guinea. Angola: Benguela, on wild fig-trees, Monteiro ! 
Like a giant form of L. dilectus, Reichb. J., the flowers being much larger, but 
the sepals are less acuminate. 
_ 33. L. stylites, Reichd. f. Otia Bot. Hamb. i. 61; ii. 75. Leaves 
linear-lanceolate, acute, attenuate at the base into a petiole, 2 ft. long, 
12-15 lin. broad. Peduncles 6-flowered. Bracts linear-lanceolate, 
long aristate or acuminate, 3-1 in. long. Pedicels 1 in, long. Sepals 
