212 ORCHIDACEdS. [ SACCOLABIUM. 



18. SACCOLABIUM, Blume ; Fl. Brit. Ind. vi, 54. 



Epiphytes, without pseudobulbs. Leaves coriaceous, flat or 

 conduplicate, often keeled. Flowers usually small, in leaf opposed 

 or supra-axillary racemes corymbs umbels or panicles ; floral 

 bracts minute. Sepals and petals adnate to the column, subequal, 

 spreading or reflexed. Lip sessile on the footless column, forming 

 a cylindric or saccate spur ; lateral lobes small or none ; terminal one 

 small, often hairy. Anther 1- or imperfectly 2-celled ; pollinia 2, 

 entire or bipartite. Species 50, in E. Asia. 



Spur cylindric, straight . . . . . 1. S. papillosum. 



Spur short, at right angles to the ovary, widely 

 saccate : 



Apax of leaves not setulose ; terminal lobe of 



lip papillose -hairy . . . . . 2. S. calceolare. 



Apex of leaves setulose ; terminal lobe of lij^ 



fleshy and glabrous . . . . . 3. S. distichum. 



1. S. papillosum, Lindl. in Bot. Reg. t. 1552 (exd. syn.) ; F. B. 

 Lvi, 63 ; K. & P. Ann. R. Bot. Gard. Calc. viii, 219, t. 290 ; Duthie 

 id. ix, part 2, 147 ; Prain Beng. PL 1022. 



Stems 2-3 ft., stout, erect, clustered, bearing many nearly horizontal 

 leaves. Leaves coriaceous, 3-4 in. long, conduplicate, curved ; apex 

 truncate or deeply notched. Peduncle 1-2 in. long, leaf -opposed, about 

 in. long, bearing a subcorymbose 4-8-flowered raceme. Flowers 

 J in. in. diam. ; bracts triangular. Sepals and petals yellow barred and 

 blotched with brown. Sepals subequal, oblong, subacute, spreading. 

 Petals narrower than sepals, subspathulate. Lip longer than sepals, 

 adnate to the base of the column ; side-lobes none ; terminal lobe 

 decurved, ovate-eblong, obtuse, crenate ; upper surface transversely 

 rugulose, white with transverse purple bars. Spur cylindric, 

 straight, half as long as the ovary and parallel to it, cylindric or slightly 

 tapering, pale -yellow, hairy within. Column short. Anther broadly 

 conical. Pollinia subovoid, deeply bipartite ; caudicle slender, 

 tapering to the small oblong gland. Capsule 1J in. long, fusiform, 

 ridged. 



Dehra Bun, in swamps (Gamble, Mackinnon). DISTRIB. : Outir 

 ranges of Himalaya in Garhwal and Kuma on and eastwards to Sikkim ; 

 also in Assam, Bengal, Circars and Burma. 



