20 CXLVIII. oRoHIDEX. (J. D. Hooker.) [ Thecostele. 
2. T. Maingayi, Hook. f. Ic. Plant ined. ; side lobes of lip fan-shaped, 
midlobe broadly ovate reflexed. 
Maracca, Maingay. . 
Pseudobulbs oblong, -lin. Leaf 3-5 in., from obovate- to linear-oblong. Scape 
with 6-8-fld. raceme 4 in.; flowers 1 in. diam.; sepals acuminate.—Only one 
specimen seen. 
3. T. quinquefida, Hook. f. Ic. Plant ined.; side lobes of lip linear, 
midlobe deeply 3-lobulate, side lobules hatchet-shaped, mid-lobule ovate 
acute. 
MALACCA, Maingay. ` . 
Pseudobulbs 1 in., oblong. Leaf 5-7 in., linear-oblong, tip obtuse very oblique. 
Scape with raceme 3 in.; flowers 1 in. diam.; sepals acute, lateral very broad ; lip 
5-fid from the deep lobing of the midlobe. 
46. BROMHEADIA, Lindl. 
Terrestrial erect rigid leafy herbs, pseudobulb 0. Leaves distant. 
Flowers in terminal simple or branched rigid racemes or panicles ; bracts 
thick, imbricate, persistent. Sepals and petals subequal, narrow, widely 
spreading. Lip adnate to the base of and embracing the column, erect, 
side lobes erect, midlobe spreading, entire. Column membranous, broadly 
2-winged, foot 0, top hooded ; anther sub-2-celled; pollinia 2, ovoid, sulcate, 
sessile on a scale-like gland.—Species 2. 
1. B. palustris, Lindl. in Bot. Heg. 1841, Misc. 89; 1844, t. 18; 
tall, leaves 3-5 in., racemes many-fld. Bot. Mag. t. 4001; Wight Ic. 
t. 1740; Walp. Ann. vi.630. B. Finlaysoniana, Reichb. f. in Walp. l. c. 
882. Grammatophyllum ? Finlaysonianum, Lindl. in Wall. Cat. 7561; 
Gen. & Sp. Orchid. 173. 
PENANG, PERAK, MALACCA and SINGAPORE (in dry exposed places, Ridley).— 
DISTRIB. Sumatra, Philippines, 
Stem 4-8 ft., terete, very stout. Leaves 8-5 by 2-1 in.,tip 2-lobed, many- 
nerved. Pedunele 6-12 in., strict; sheaths many, appressed; raceme 1-7 in., bracts 
ovate, obtuse, thickly coriaceous (rachis appearing serrate); pedicel with ovary 1 in. 5 
flowers 23-3 in. diam., sweet-scented ; sepals linear-oblong, obtuse, spreading 8D 
recurved, white or pale pink; petals broader; lip white, disk purple, side lobes sub- 
acute streaked with purple; midlobe rounded apiculate, yellow, granulate ; column 
elongate cymbiform. 
?2. B. aporoides, Reichb. f. Ot. Bot. Hamb. 44 ; dwarf, leaves 1}-2 in» 
peduncle very short 1-2-fld. 
TENASSERIM ; at Moulmein, Parish. 
Stems tufted, 1-1} in., clothed to the base with coriaceous falcate ensiform acute 
leaves. Peduncle } in., clothed at the base with small coriaceous imbricate sheaths ; 
flowers 1 in. long ; sepals and petals oblong-lanceolate, acute, white; lip oblong, side 
lobes triangular acute streaked with red, midlobe small ovate yellow papillose i 
column slender ; gland of pollinia lunate.—1 have seen only very imperfect specimens 
which differ so greatly in habit, foliage and the slender column from B. palustris, 
that I suspect the species will prove to be generally distinct. The habit is that of 
Dendrobium atropurpureum. 
47. POLYSTACHYA, Hook. 
Pseudobulbous leafy epiphytes. Leaves few, distichous, narrow: 
coriaceous, jointed on their sheath. Scape terminal, sheathed ; flowers very 
small, in narrow panicles. Sepals free, dorsal ovate, lateral triangula! 
adnate to the foot of the column. Petals very narrow. Lip superion 
clawed, jointed on the foot of the column, erect, 3-lobed, side lobes sma 
