Zistrostachjs.] cxxxiii. orchide^ (rolfe). 153 



Leaves 2^-4 in. long. 



Sepals and petals 3 lin. long . . .44. L. qlomerata. 



Sepals and petals 1^-2 lin. long . . 45. L. Braunii. 



tfLeaves equitant or ensifonnly compressed. 

 Flowers in slender racemes. 



Scapes 5 in. long ..... 46. L. JBatesii. 

 Scapes 2-3 in. long. 



Racemes longer than the leaves. 



Leaves l|-2 in. long, subacute . . 47. L. Zenkeri. 



Leaves 1 in. long, obtuse . . . 48. i. iridifolia. 



Racemes much shorter than the leaves . 49. L.forcipata. 

 Flowers in short, lax, subcapitate racemes . 50. L. dactyloceras. 

 tffLeaves terete or subterete (unknown in 52). 



Lip broadly ovate, subobtuse or apiculate . 51. L. subulata. 

 Lip dilated in front into two large rounded 



lobes ....... 52. L.filiformis. 



1. la. caudata, Reichh. f. in Walp. Ann. vi. 907. Stems short, 

 about 8-leaved. Leaves linear-oblong, very shortly bilobed, 6-10 in. 

 long, \-\\ in. broad ; lobes obtuse, recurved. Scapes pendulous, 9-12 

 in. long; racemes fiexuose, G-10-flowered. Bracts broadly rounded, 

 obtuse, H lin. long. Pedicels h in. long. Sepals triangular-lanceolate, 

 acuminate, 1 J-l J in. long. Petals similar to the sepals, but about three- 

 fourths the size. Lip trilobed, obovate from a cuneate base, \\ in. long, 

 j-1 in. broad; side lobes irregularly toothed above ; front lobe triangular- 

 subulate, acute ; spur elongate, narrow, flexuous, 9-10 in. long. Column 

 clavate, 6-7 lin. long; rostellum with long subulate beak, 4 lin. long; 

 stipites of pollinia 4 lin. long, united at the extreme base; gland small and 

 rounded. — Angrcecum caudatum, Lindl. Bot. Reg. t. 1844 ; Bot. Mag. 

 t. 4370; Reichenbachia, ser. i, ii. 41, t. 07; Garden, xxxix. t. 804; 

 Will. Orch. Alb. viii. t. 358 ; Orchidophile, 1887, 80, with plate. 



Upper Guinea. Sierra Leouc, Loddiges ! Whitjield ! Afzelius ! Niger Delta: 

 Brass, Barter, 1858 ! 



2. L. chailluana, Reichh. f. in Flora, 1885, 381, in note. Stems 

 erect, 6 in. or more high, many-leaved. Leaves about 1 in. apart, 

 oblong, unequally and shortly bilobed, very coriaceous, 4^-9 in. long, 

 1-1 J in. broad; lobes obtuse. Scapes axillary, 6-9 in. long, many- 

 flowered. Bracts broadly ovate, subacute, concave, 6-8 lin. long. 

 Pedicels l|-2 in. long. Sepals triangular-lanceolate, acuminate, re- 

 curved, IJ-lJ in. long. Petals a little shorter and narrower than the 

 sepals. Lip "much like the petals, but slightly broader and obscurely 

 angled at the base ; spur narrowly conical at the base, elongate, and 

 narrowed upwards, 4-5J in. long. Column stout, 4 lin. long; pollen 

 with 2 slender stipites and 1 elongated gland ; rostellum long, deflexed. 

 — Angrcecum chaillicanum, Hook. f. in Bot. Mag. t. 5589 ; Veitch, Man. 

 Orch. vii. 124. A. arctmtum, Lindl. in Journ. Linn. Soc. vi. 136 (not 

 in Hook. Comp. Bot. Mag.). 



Upper Guinea. Lagos, Millen, 193 ! Niger Delta : Nun River, Mann, 521 ! 

 Cameroons : Buea, Freuss, 372 ! 



