84 CXXXII. ORCHIDEX (ROLFE). [Zissochilus- 
triangular, aristate or acuminate, 10-15 lin. long. Petals broadly 
elliptical, obtuse, 12-13 lin. long, 8-9 lin. broad. Lip very broadly 
pandurate, emarginate or bilobed, obtuse-angled, 1-14 in. long, and 
broad; dise with a pair of styliform, capitate or bilobed calli in front 
of the spur, and the median nerve slightly thickened and obscurely 
crenulate below ; spur saccate, very obtuse, 3-4 lin. long.—Reichb. f. 
in Flora, 1885, 379. 
Lower Guinea. Angola: Malange, Mechow, 203, and without locality, 
1500-1800 ft., Micholitz ! 
South Central. Congo Free State: Monbuttu; near Munsa, Scheweinfurth, 
ser. ii, 21! 
Closely allied to Z. dilectus, Reichb. f. and chiefly differing in the styliform crest. 
I have not seen the original specimens, but the one collected by Micholitz apparently 
belongs to the same species. It is also found in the Comoro Islands, according to 
Reichenbach, 
34, L. Buettneri, Kränzl. in Engl. Jahrb. xvii. 53. Scapes 
strong, over 3 ft. high, with 7-8 acute sheaths; racemes about 30- 
flowered. Bracts narrowly lanceolate, aristate, shorter than the ovary. 
Flowers red, 1-1} in. diam. Sepals ligulate, acute and apiculate. 
Petals obovate, twice as broad as the sepals, retuse or emarginate, with 
an apiculus in the sinus. Lip trilobed ; side lobes erect, triangular, 
rounded at the apex ; front lobe narrowly cuneate below, much dilated 
and bilobed above, with an apiculus in the sinus; spur very obtusely 
saccate. Column a third as long as the lip, dilated above and very slen- 
derly margined. 
Upper Guinea. Togoland; Bismarcksburg, Augauje Steppe, Büttner, 415. 
Only known to me from the original description, where the affinity is not stated. 
35. L. Horsfallii, Batem. in Bot. Mag. t. 5486. Rhizome stout. 
Leaves elongate-lanceolate, acute or acuminate, 2-3 ft. long, 3—4 in. or 
more broad. Scapes about 4 ft. high, with several sheaths; racemes 
12-16 in. long. Bracts ovate or ovate-oblong, acute or acuminate, 
qZ-14 in. long. Pedicels 14-2} in. long. Sepals lanceolate-oblong, 
acute or subacuminate, 9-11 lin. long, purple; lateral adnate to the 
foot of the column. Petals suborbicular-elliptical, obtuse or subapicu- 
late, 10-12 lin. long, pinkish-white. Lip trilobed, 12-13 lin. long; 
side lobes broadly rounded, and green veined with brown; front lobe 
ovate-oblong, subobtuse or apiculate, undulate, purple; disc with 3 
dwarf, crenulate keels about the middle; spur conical, with an acute 
apex, 3—4 lin. long. Column clavate, 6—7 lin. long ; foot half as long as 
the column.—Batem. Sec. Cent. Orch. t. 121; Reichb. f. in Flora, 
1865, 188; Krianzl. in Engl. Jahrb. vii. 439. 
Upper Guinea. Old Calabar River, cultivated specimens, Cheetham ! 
Lower Guinea. Gaboon, Soyauz (ex Krénzlin). Lower Congo, near Ponto 
da Lenha, Naumann, 157 (ex Krénzlin ). 
Mozamb. Dist. Manganja Hills, near Chipindu, 2000 ft., Kirk ! 
Originally flowered in the collection of J. B. Horsfall, Esq., in 1864. 
36. L. porphyroglossus, Reichb. f. Otia Bot. Hamb. i. 61. Leaves 
elongate-lanceolate, acuminate, long petiolate, 34 ft. long, 13 in. broad, 
