Luisia.] OXLVIII. ORCHIDEJ:. (J. D. Hooker.) 25 



lip twice as long as the lateral sepals, white or greenish with deep purple base 

 and lobes, or purple and streaked with paler lines (Dalzell), disk with 8 large 

 calli. Macrae's Ceylon specimen is like the Malabar plant. A. Richards' figure of 

 Birchea teretifolia is a very bad one. Kheede's figure in xii. t. 5, on which Linnaeus' 

 Epidendrum tenuifolium ( Cymbidium, Willd.) was founded, is not a Luisia, the leaves 

 are grooved, and spike very different. 



10. Zi. volucris, Lindl. Fol. Orchid. 1; stem stout, leaves 3-5 in. 

 stout, lateral sepals cymbiform with an acute dorsal wing, petals 2-4 times 

 as long 1-1 in. linear dilating to the rounded tip, hypochile oblong with 

 incurved basal auricles, epichile as long much broader ovate-cordate obtuse 

 fleshy. Walp. Ann. vi. 619. 



SIKKIM HIMALAYA, J. D. H. KHASIA MTS. and SILHET, Loll, J. D. H. fy T. T. 

 ? Chittagong Hills, Ic. in Sort. Calcutt. 



Stem 6-10 in., internodes $ in. Eackis of spike in., very stout. Petals 

 and sepals very pale yellow-green ; lip dark purple, epichile hardly cordate (as 

 described by Lindley). Capsules 1 in. Flowerless specimens closely resemble 

 L. teretifolia. In the drawing of the Chittagong plant the stem is slender, the in- 

 ternodes are lij in. and leaves 7-9 in., the petals not dilated at the tip, and the 

 epichile of the lip green and grooved. 



11. Xi. antennifera, JBlume Humph, iv. 50; Mus. Lugd. Bat. i. 64; 

 stem stout, elongate, leaves 3-4 in., rachis of spike very stout f-l| in., 

 petals linear f in. long twice as long as the eymbiform sepals, lip cuneately 

 oblong, epichile hardly distinct from hypochile which has a broadly 

 2-auricled base. Reichb.f. Xen. Orchid, i. 265, t. 78, f. 2. 



PEBAK, Scortechini, King's Collector. DISTEIB. Borneo (Loio}. 



Stem a foot and upwards ; internodes 1 in. (the largest of the genus except tristis), 

 as are the spikes. Flowers iu Low's drawing pale green with purple lip as long as 

 the sepals ; in note by King's collector, " pale greenish white waxy inner petals 

 dark blue," possibly the dark blue is meant for the lip. The form of lip is the same 

 in a drawing by Scortechini of the Perak plant. 



12. Xi. tristis, Hook. f. ; stem stout elongate, leaves stout 3-5 in., 

 rachis of spike very stout 1-2 in., petals f in. long linear twice or thrice as 

 long as the sepals, hypochile of lip quadrate base 2-auricled, epichile short 

 broadly ovate-cordate grooved. Cymbidium triste, Willd. Sp. PI. iv. 99. 

 Epidendruni triste, Forst. Prodr. No. 314. 



PENANG, Curtis. DISTBIB. New Caledonia. 



Very like L. antennifera, having the same stout habit, foliage, and thick long 

 rachis of the spike, but the lip is very different, and is as far as can be judged from the 

 indifferent specimens in Herb. Forster, identical with that of his Epidendrum triste. 



13. L. G-rovesii? Hook.f.; stem very slender elongate, leaves 6-10 in. 

 filiform, rachis of spike very short few-fld., flowers 1 in. diam., lateral sepals 

 cymbiform, petals twice or thrice as long narrowly linear obtuse, hypochile 

 of lip subquadrate flat, epichile broadly cordate, column very short broad. 



EASTEBN BENGAL ; in the Looshai Hills, G. B. Groves (in Herb. Calcutt.). 



Closely resembles L. filiformis, but at once distinguished by the long petals. 

 Described from two drawings of plants cultivated in Hort. Calcutta, one of a speci- 

 men without locality, the other localized as above. The sepals and petals are pale 

 yellowish, the hypochile and column dark purple, the epichile pale purplish in one 

 with darker margins, greenish in the other, in both dark purple at the base. 



DOUBTFUL SPECIES. 



L. MICEOPTEEA, Eeichb. f. in Gard. Chron. (1870) 1503 ; leaves terete rather 

 stout, raceme few-fid., flowers small, sepals ligulate acute, longer than the petals, 

 both straw-cold., lip half purplish half yellow, hypochile ovate uncinate at the base 



