159. ORCHIDACE.^. [17. Denurobium. 



1. D. pygmaeum, Limll. 



A small densely tufted leafy epiphyte with oblong or somewhat 

 tapering greenish pseudobulbs \" long, linear-oblong or linear leaves 

 2-3" and numerous short dense-flowered racemes of greenish or white 

 floAvers from the ends of the pseudobulbs. Racemes -5-1". Flowers 

 about -3" on longest diameter, mentum about half as long as the 

 lanceolate sepals, lip narrow curved with decurrent oblong green side- 

 lobes marked with oblique red lines, mid-lobe very short in the sinus 

 formed by the short free tips of the side-lobes, ovate crenate white 

 with red markings. 



Jaspur, Cardon ! Fl. Nov. 



The plant was identified by Col. Gage at the H.B.C. The description is from 

 a drawing made from the fresh plant. L. 2-3, caducous Scapes many, terminal 

 and lateral. Bracts exceeding the ovary, nearly -2.5". Sepals -3" white or pur- 

 plish, lateral decurved. Petals oblanceolate, lip obovate, midlobe triangular 

 cvisped, disk with a crenate fleshy ridge," F.B.I. 



2. D. herbaceum, Lindl. 



A much-branched epiphj'te with very slender fleshy pendulous 

 stems, linear or linear-lanceolate long-acuminate leaves 2-4" long, 

 tapering at the base, and very small yellow flowers •2-- 3" long on 

 slender pedicels in very short, few-fld. racemes near the tips of the 

 leafless branches. 



Parasnath, T. Thorns. ! Cardon f Fl. July-Nov. 



Lower parts of stem naked, upper with short sheaths. Leaves caducous, none 

 at the time of flowering, nerves 8-10. Racemes only •1--5" long with minute 

 scarious bracts 0.5" long. Pedicels slender, -i-Q". Sepals linear up to •li-S", 

 sometimes only -lb", 3-nerved, petals similar; lip very small narrow, side 

 lobes very narrow, midlobe shorter ovate rugose. 



3. D. formosum, Roxb. 



A very beautiful orchid, without pseudobulbs but with several 

 fleshy cylindrical somewhat furrowed stems 10-18" long clothed with 

 short black hairs when young. Leaves bifarious, subamplexicaul, 

 ovate-lanceolate or oblong, 3-4" long. Flowers very large, 3-4" 

 across, pure white except for the yellow palate, in terminal (or lateral, 

 F.B.I.) few-fld. racemes. 



Prain records this from Chota Nagpur in Beng. PI., stating in a note in the Cal. 

 Herb. : "I have seen this from Sirguja in the collection of Sir C. C. Stevens." 

 It is frequent in the Jalpaiguri district ! and may occur in Purneah. I have also 

 seen an orchid very like it but not in flower at Neterhat. It is frequent in culti- 

 vation. Fl. April-May. 



Sepals lanceolate or oblong-lanceolate acuminate, mentum very large conical 

 petals broad, cuspidate, lip broadly obovate with small rounded side-lobes and 

 dilated refuse midlobe, palate yellow with 2 tubercled ridges. 



4. D. bicameratum, Limll. 



Stems clustered sub-clavate 3-18" long and attaining '35-- 5" diam. 

 Leaves ell. -oblong to lanceolate, acute, obliquely minutely 2-fid at 

 tip, 1 • 5-3" long. Flowers • 4" across, yellow, greenish-yellow or 

 greenish-white with rows of crimson spots, densely clustered on a 

 short rhachis in a lateral or sub-terminal capitate raceme. 



Parasnath, fide F.B.I. Also Mahendragiri (Gamble !) Will probably be found 

 therefore on Meghasani. Fl. Aug.-Sept. 



Bract sheathing the shortly stalked ovary. Dorsal sepal broadly ovate-oblong, 



1173 



