CXXT. ORCHIDACE.l. 701 



Woodrow in his list of Bombay plants notes this as occurring at Mahableshwar. — 

 I have never met with it tliere nor does Mr. H. M. Birdwood mention it iu his list of 

 Mahableshwar and Matheran plants. 



Excluded Species. 



MRID'ES OBOBATUM, Lour. Fl. Cochinch. (1790) p. 525. Stem very stout. 

 Leaves flat, keeled, oblong, blunt and obtusely 2-lobed at the apex, 6-12 by I-l| in. 

 Flowers fragrant, white with pink spots, in supra-axillary deflexed many-flowered 

 racemes as long as or longer than the leaves ; peduncles short with short distant 

 sheaths; bracts broad, sheathing, bluut. Sepals unequal, spreading; lateral sepals 

 larger than the dorsal, blunt ; dorsal sepal elliptic, obtuse. Lip aduate to the short 

 foot of the column ; side lobes shallow, truncate, erose ; midlobe linear, entire or 

 arose, Ij'ing between the edges of the side lobes ; spur large, infundibuliform, curved 

 forwards. Anther triangular, depressed, beaked ; poUinia globose ; caudicle linear ; 

 gland quadrate. 



In Sir J. Hooker's ' Flora of British India,' v. 6, p. 47, the word Concan is a mis- 

 print for Circars, which is the locality given by Heyne in Herb. Rottl. There are no 

 specimens from the Konkan in Herb. Kew. Woodrow in his list of Bombay plants 

 [Journ. Bomb. Nat. v. 12 (1899) p. 519] gives the Konkan as habitat, but has evidently 

 done so on the authority of the 'Flora of British India.' King & Bantling, in Ann, 

 Eoy. Bot. Gard. Calc. v. 8 (1898) p. 212, t. 282, give the following distribution of 

 the plant, viz. : Sikkim, westwards to Nepal, Kliasia Hills, Silhet, Chittagong, Birma, 

 Cocbinchina, China, and Java. 



19. LUISIA, Gaud. 



Epiphytic herbs with rigid, terete, usually erect sheathed stems woody 

 below. Leaves terete, fleshy, distant, spreading. Elowers usually small, 

 of a dull color, in short extra-axillary spikes ; rhachis stout ; floral 

 bracts short, scarious, persistent. Sepals subequal or the depressed 

 dorsal smaller. Petals equal to the sepals or much longer, spreading. 

 Lip sessile on the base of the column, divided into 2 parts, the hypochile 

 (basal part of lip) concave or flat, the epichile (apical part of lip) 

 decurved, broad and ridged, entire or crenate, undulate, more or less 

 blunt. Column stout, much shorter than the lip ; stigma usually large ; 

 anther broad, 2-celled ; pollinia 2, ovoid or subglobose, attached by a 

 broad caudicle to a subquadrate or elongate gland. Capsule narrow, 

 ridged, suberect. — Distrib. Species about 15, mostly tropical Asiatic, a 

 few Australian. 



Petals as long as the lateral sepals ; epichile rhomboid-ovate with 



entire apex 1. L. teretifolia. 



Petals much longer than the lateral sepals ; epichile 2-lobed at 



the apex 2. L. tenuifolia. 



1. Luisia teretifolia, Gcmd. Bot. Freyc. Votj. (1826) p. 427, t. 37. 

 Stem 6-12 in. long, about as thick as a swan's quill, sometimes branching 

 and with stout vermiform roots ; internodes |-| in. long. Leaves terete, 

 spreading, 3-7 by tij— 8 ^"-i g^fen spotted with purple, the tip rounded. 

 Flowers in short 2-3-flowered spikes reaching with the peduncle 1-2 in. 

 long. Sepals greenish-yellow ; lateral sepals i- by J^- in., oblong, sub- 

 acute, with a wiuged keel at the back ; dorsal sepal linear-oblong, J^ in. 

 broad. Petals yellow, as long as the sepals, linear-oblong, obtuse. Lip 

 i in. long ; hypochile green spotted with purple, quadrate, subsaccate ; 

 epichile dark purple, broadly cordate, rhomboid-ovate, obtuse, obscurely 

 3-lobed, deflexed, fleshy. Column stout, y\^ in. long ; anther depressed; 



