Habenaria.'] CXLVIII. ORCHIDEA (J. D. Hooker.) 133 



VIII. DIPHYLAX. Flowers small, secund ; lip entire ; spur short, fusi- 

 form. Anther with a setif orm staminode ou each side as long as itself. 

 (Sp. 104.) 



IX. DIPYLA. Flowers small, secund. Zrp-3-fid, spur inflated. Pol- 

 linia sessile on a single large obcordate gland seated in a sinus of the broad 

 2-lobed rostellum. Stigmatic processes small. (Sp. 105.) 



X. DITHRIX. Flowers small, secund, tubular ; sepals petals and lip 

 coherent at the base. Lip oblong, 3-fid, base saccate. Staminodes 2, 

 filiform, capitate, inserted on the back of the anther. Stigma a transverse 

 cushion; rostellum a transverse plate below the anther. (Sp. 106.) 



Sect. 1. ATE. See p. 132. 

 * Petals truncate or 2-fid. 



1. K. lucida, Wall, in Lindl. Gen. Sf Sp. Orchid. 314 ; leaves fascicled 

 towards the base of the tall scape, sepals cymbiform, petals subpanduriform 

 truncate. Platanthera lucida, Lindl. in Wall. Cat. 7047. 



PEGHT ; at Rangoon, Wallich. TENASSERIM, at Moulmein, Parish. DISTRIB. 

 Siam. 



Leaves 4-8 by 2-2 in., petioled, obovate or oblanceolate. Scape with the very 

 lax-fld. raceme 12-20 in. ; bracts broadly ovate, half as long as the slender pedicelled 

 beaked ovary, or longer, tips subulate ; flowers | in. diaio., greenish; lateral sepals 

 reflexed, obtuse ; petals smaller and narrower, contracted below the truncate end ; 

 lip subequally 3-partite, midlobe narrow 3-nerved thick, rather longer than the 

 sepals, lateral as long spreading and incurved ; spur slender, curved, nearly as long 

 as the ovary or longer, mouth with a short ligule; anther-cells short, erect, 

 approximate, tubes short upcurved ; pollinia pyriform, gland long narrow ; stig- 

 matic processes short, clavate j rostellum minute. 



2. H. barbata, Wight in Wall. Cat. 7034; stem leafy, petals 2-fid 

 pubescent. Ate virens, Lindl. Gen. Sf Sp. Orchid. 327; Wight Ic. t.'928; 

 Thwaites Enum. 309. 



TRAVANCORE; in the Pulney and Dindyghal Mts., Wight. CEYLON; in the 

 Maturatta district. 



Stem 10-12 in. Leaves 3-5 in., erect, lanceolate, acuminate. Racemes few- 

 fld. ; bracts large, sheathing, as long as the flowers, or longer ; flowers f in. diam., 

 green j lateral sepals narrowly falcate, acuminate ; petals much broader, base 

 rounded, upper lobe much the longest, tips filiform, lower broad acuminate, sinus 

 rounded; lip longer than the sepals, scabrid, limb linear, trifurcate at the 

 end, the segments subulate ; spur as long as the ovary, mouth with a very long 

 recurved ligule ; anther-cells parallel, tubes as long as the cells upcurved, pollinia 

 clavate, caudicles very long, glands small ; stigmatic processes very long spreading ; 

 rostellum minute. Capsule f in. long, linear-oblong. 



3. K. acuminata, Thwaites in Trim. Cat. Ceyl. PL 91 ; stem leafy, 

 petals 2-fid glabrous. Ate acuminata, Thwaites Enum. 309. 



CEYLON; in the central province, Walker, Thwaites. 



Stem 1-2 ft. Leaves 2-4 in. , erect, lanceolate, and as well as the large cymbiform 

 bracts setaceously acuminate. Racemes elongate, lax-fld. ; flowers subsecund, 

 in. diarn., green; lateral sepals broadly ovate, obtuse; upper lobe of petals 

 slender exceeding the dorsal sepal and about twice as long as the subulate lower ; 

 lip as long as the sepals, broadly 3-lobed, dark purple, lobes broad fleshy obtuse very 

 variable in length ; anther -cells spreading below, tubes recurved, pollinia clavate, as 

 long as their caudicles, glands minute ; stigmatic processes large, globose ; rostellum 

 small, triangular. \ 



