Dend rob Sum.] CXLVIII. ORCHIDEJ:. (J. D. Hooker.) 715 



much larger than the sepals, side lobes triangular acute, midlobe very large 

 quadrate-orbicular with 2 crenulate lamellae on the disk and plaited undu- 

 late sides. 



PERAK, Scortechini, King's Collector, alt. 500-1000 ft. 



Branches long, stout; pseudobulbs 2-3 in., fusiform. Leaf 6 10 by 2-3 \ in., 

 very coriaceous, base narrowed. Flower 1 in. long, very membranous, white 

 mottled with red, nerves and nervules very slender; sepals and petals lanceolate, 

 acuminate ; midlobe of lip f in. across. Column with incurved subulate tips. 



Sect. IV. STACHYOBIUM (see p. 710). 

 * Stern simple or nearly so, often a small pseudobulb. 



f Flowers small (except D. ciliatum). Petals not broader than the dorsal 

 sepal. 



Side lobes of lip strongly inciso-serrate. 



15. D. denudans, Don Prodr. 34; stems 4-6 in. suberect, leaves 

 linear-oblong caducous, racemes elongate drooping many-fld., bracts very 

 small, sepals and petals long slender, mentum incurved obtuse, lip much 

 shorter than the sepals, side lobes iuciso-serrate, midlobe small crisped, 

 disk 2-lamellate. Wall. Cat. 2014 (in part] ; Lindl. Gen. $ Sp. Orchid. 

 84; in Bot. Reg. 1838, Misc. 156, and 1844, 61 ; injourn. Linn. Soc. iii. 19 ; 

 Walp. Ann. vi/300. 



SUBTROPICAL and TEMP. HIMALAYA, alt. 4-7000 ft., from Kumaon eastwards to 

 Sikkim. 



Stem clothed with broad sheaths, \ in. long. Leaves 3-8 in., obtuse or notched. 

 Scape with raceme 4-6 in., very slender ; flowers f-1 in. long, usually white with 

 red veins on the lip, sometimes yellowish with a green lip; dorsal sepals 3-nerved, 

 lateral 5 -nerved ; petals 1 -nerved. 



16. D. eriaeflorum, Griff. Notul.iu. 316; Ic. PL Asiat. t. 307; stem 

 3-4 in. erect, leaves linear-lanceolate acute or" notched, racemes many- 

 fid., bracts very small, mentum incurved obtuse, sepals lanceolate, lip 

 nearly as long as the sepals broadly ovate, side lobes subfimbriately serrate, 

 midlobe broad undulate, disk longitudinally crested. Lindl. in Journ. 

 Linn. Soc. iii. 19. 



SIKKIM HIMALAYA, alt. 6000 ft. KHASIA MTS., alt. 4-5000 ft., Griffith, 

 &c. 



Stem 3-8 in., basal internode sometimes thickened. Very closely allied to D. 

 denudans, but the racemes are shorter and fewer-fld., the sepals and petals shorter and 

 broader, and the lip stronger in comparison. The colours are as variable as in that 

 plant, between which and D. alpestre it is intermediate in characters. 



17. D. alpestre, Royle III. 370, t. 88, f. 2; stem pseudobulbous, 

 leaves 3-4 linear-oblong, scape short erect 3-5-fld., sepals ovate-lanceolate, 

 petals oblanceolate, mentum short obtuse, lip lanceolate, side lobes inciso- 

 serrate, midlobe small crisped acute, disk 2-lamellate. Lindl. in Bot. Reg. 

 1844, Misc. 61 ; Walp. Ann. vi. 300. D. denudans, Wall. Cat. 2014 (in 

 part}. ? D. pusillum, Don Prodr. 35. 



TEMPERATE HIMALAYA, alt. 5-6000 ft., from Garwhal, Royle, &c., to Nepal, 

 Wallich, &c. 



Resembles a dwarf state of -D. ericeflorum ; the flowers are fewer and smaller, but of 

 the same colour, the sepals and petals broader iu proportion to their length. 



