812 CXLVIII. ORCHIDEJS. (J. D. Hooker.) [Paclnjstoma. 



side lobes oblong, midlobe small; disk with 3-5 deeply crested or fimbriate 

 ridges. Column slender, clavate above, foot 0; anther 4-celled; pollinia 

 S, pyriform. Species 6-8, probably forms of one, Indian, Malayan and 

 African species. 



P. senile, Rcichl). f. in Bonpland. iii. 250 ; bracts ovate- or linear- 

 lanceolate longer or shorter than the flowers. P. Smithianum, Edgeworthii, 

 montanum & Lindleyanum, Reichh. f. 1. c. ; Wai p. Ann. vi. 642, 643. 

 Apaturia senilis, Smithiana & montana, Lindl. in Wall. Cat. 3739, 3737, 

 3738 ; Gen. $ Sp. Orchid. 130, 131. A. Lindleyana, Wig /it Ic. t. 1662. 



Plains and foot-hills of N. INDIA, from GAEWIIAL to SIKKIM, the KITASTA 

 HILLS and MUNNIPOEE, and southwards to MALABAE and CEYLOX. ? DISTEIB. 

 Malay Islands and S. China. 



Rhizome 1-2 in. Leaf solitary, very long and narrow. Scape with raceme 

 8-15 io., white or nearly so; bracts in the longest state (P. senile type) 2 in. long, 

 narrow lanceolate ; in the shortest state (P. montanum) shorter than the flowers, 

 and spathaceous ; flowers about ^ in. long, glandular-puberulous, white, greenish 

 or pinkish; sepals membranous, acute or acuminate, 5-nerved; petals narrowly 

 spathulate, acuminate, 3-nerved ; mentum very short ; lip from oblong to nearly 

 orbicular, claw very short ; side lobes large, obtuse or subacute ; midlobe as long or 

 longer, oblong or obovate, retuse or pointed/purplish ; disk with 5 (rarely 3) crested 

 ridges from the base to the midlobe, and there thickened ; column puberulous. 

 I cannot distinguish the plants here included under P. senile, they all vary so 

 much and into one another. Clarke finds the long and short bracted states 

 growing intermixed in the Sikkim Terai. 



21/2. IPSEA, Lindl. 



Terrestrial herbs with the long narrow plicate leaves and sheathed 

 scape of Pachystoma, but distinctly pseudobuibous, with few large highly- 

 coloured flowers. Species 3, Indian and an African. 



I cannot follow Reichenbach and Gen. Plant, in uniting Ipsea with Pachystoma. 



1. I. speciosa, Lindl. Gen. fy Sp. Orchid. 124; flowers golden- 

 yellow, lip 3-lobed, disk with 5 thick ridges, Wight Ic. t. 1663 ; Sot. Mag. 

 t. 5701. Pachystoma speciosum, Reichb.f. in Bonpland. iii.'ZbO; Walp. 

 Ann. vi. 462. 



CEYLON; on grassy hill -sides, alt. 4-5000 ft. 



Puberulous. Pseudobulbs 1-1| in., tufted, depressed. Leaves 6-10 in., long- 

 petioled. Scape as long, 2-3-sheathed, 2-4-fid. ; bracts spathaceous, equalling the 

 ovary ; flowers 23 in. diam. ; lateral sepals ovate-oblong, subacute ; lip oblong, 

 side lobes triangular, obtuse or subacute ; midlobe produced, obovate j column nar- 

 rowly winged, subclavate. 



2. Z. malabarica, IlooJc.f.; midlobe of lip emarginate denticulate, 

 disk with 5 serrated lamellae. Pachystoma malabaricum, Reiclib. f. in 

 Walp. Ann. vi. 462. 



MALABAE, Jerdon. 



I do not know this plant. Wight (Ic. v. 8) says that he has a species from 

 the Malabar Ghats, which he has not examined. I do not find it in his 

 Herbarium. 



3. I?. Wrayana, Hook.f.\ flowers claret-cold., lip triangular-ovate 

 acute with 3 narrow lamella. 



