Dendrobiufn.l OvchideCB. 1 5 1 



3. I>. diodon, Rchb.f. in Linncea, xli. 89 (1877), 



D. albidulum, Thw. ex Trim, in Journ. Bot. xxiii. 243. C. P. 3879. 

 Fl. B. Ind. V. 717. 



Dwarf; pseudobulbs crowded on a slender rootstock, 

 ovoid or oblong, \-\ in. long, clothed with a hyaline sheath, 

 roots filiform; 1. 2-4, sessile, i-i^ in. long, linear or oblong, 

 obtuse, acute, or unequally notched, thinly coriaceous, many- 

 veined when dry, base narrowed, mid rib prominent beneath ; 

 ped. from the top of the pseudobulb, capillary, with the 

 few.-fld. raceme i-ij in.; bracts small, ovate, acuminate, 

 pedicel with minute ov. -g^in.; sep. :|-^ in., dorsal linear-oblong, 

 subacute, 3-veined, lateral subfalcately ovate-oblong, acute, 

 5-veined, mid rib strong; mentum large, \ the length of sep., 

 stout, incurved, tip rounded, notched; pet. shorter and 

 narrower than the dorsal sep., 3-veined ; lip -3- shorter than the 

 Sep., cuneately flabelliform or rhomboid, side lobes small, 

 acute, incurved, mid lobe hardly longer than the side lobes, 

 orbicular, concave, margins crisped and deeply toothed, veins 

 reticulate, disk with a strong ridge from the base to the base 

 of the mid lobe, ending in a 3-toothed callus; column short, 

 top 3-toothed, anth. orbicular; fr. subglobose, \ in. diam., 

 quite smooth. 



Montane zone ; rather rare. Hakgala, abundant ; Hantane ; Dum- 

 bangala, Rangala. Fl. July-October ; sep. and pet. pure white, lip pale 

 green, dotted with claret. 



Endemic. 



Very similar in infl. to D. panduratum, but the habit is different, the 

 fl. are much smaller, the sep. broader and more obtuse, the mentum 

 broad and incurved, the mid lobe of the lip toothed on the margin, and 

 the callus on the disk 3-toothed. 



4. D. crumenatum, Swart z in Schrad. Jojirn. ii. 237 (1799). 

 Sudupareyi-mal, S. 



Moon, Cat. 60. Thw. Enum. 297. C. P. 3696. 



Fl. B. Ind. V. 729. Bot. Reg. xxv. t. 22. Bot. Mag. t. 4013. 



Stems tufted, elongate, 2-3 ft, rigid, simple or branched, 

 internodes i in. or shorter, terete, lower 3 or 4 together, 

 forming a fusiform elongated pseudobulb 2 in. long; 1. many, 

 2-3 in. long, distichous, linear-oblong, obtuse or notched, 

 coriaceous; fl. \-\\ in. long, solitary at the internodes of the 

 long slender leafless top of the stem, ped. with ov. \ in. ; 

 bracts much shorter; fl. i in. long; sep. erecto-patent, ovate- 

 lanceolate, acuminate, 7-veined; mentum as long as the sep., 

 conical, acute, incurved; pet. linear-oblong, acuminate, 

 5-veined; side lobes of lip narrow, mid lobe much larger, 

 suborbicular, crisped, disk with crenulate ridges. 



