LUISTA, | | -201 
Linn. бое. IIT, 41; Walp. Ann. VI, 899. A. Hystriz, Lindl. in Journ. Linn. Soc. 5 
42 (not of Gen. end Spec. Orch.) 
Sikkim, at elevations from 4,000 to 6 ,000 feet; in flower during July and August; 
Pantling, No. 98. Westward along the range to Gharwal and eastward to Bhutan. 
Khasia Hills, Burma. 
The ground colour of the . flowers is greenish-yellow; the sepals and petals have 
bold bands of brown, and the pectinate lateral lobules of the lip are also brown passing 
into purple below. 
Prate 268.—Ornithochilus fuscus, Wall. А plant; of natural sise. Fig. 1 a flower, side view, 
2 vertical section of column spur and lip, 3 apical lobe of lip, 4 column with anther in situ, 5 anther, 
6 and 7 pollinia before and after removal; ай enlarged, (Ncs. 6 and 7 very much so). 
43. Luisia, Gaud, 
Epiphytal, with rigid terete sheathed stems woody below, usually erect (pendulous 
in Г. voleris), Leaves terete, fleshy, distant, spreading. Flowers usually small and dull 
in colour, in short extra-axillary spikes with stout axes; floral bract short, scarious, 
persistent. Sepals sub-equal or the depressed dorsal, smaller. Petals equal to the sepals or 
much longer, spreading. Jip sessile on the base of the column, divided into two parts; 
the hypochile saccate, concave or flat; and the epichile decurved, broad and ridged, entire 
or crenate, undulate, more or less blunt. Column much shorter than the lip, stout. Stigma 
usually large. Anther broad, 2-celled, Pollinia 2, ovoid or sub-globose, attached by a 
broad caudicle to a sub-quadrate or elongate gland. Capsule narrow, ridged, sub-erect, 
Species about 15; mostly tropical Asiatic, a few Australasian, 
Sepals and petals sub-equal. 
Lip quite entire . » . e "38 г v" 4 BR oy s o шие . B è y k; ? indivisa, 
Lip lobed. 
Flowers `4 in. long ; spikes 4- or -flowered . . . . . . . . 2. LL. triclorisza 
Flowers ‘25 in. long ; leaves 25 to 6 in. log . . . . 2. L. teretifolia, 
Flowers “15 in. long ; leaves not exceeding 2:5 in. in ligi, ‚ S 4 Г. inconspicua, 
Petals two or three times as long as the vere flowers 1:75 in. m from 
tip to tip of the petals . . . . . . . . cV w ОГ. was 
1, LUISIA INDIVISA, new species. 
Stem 5 to 7 in. long, rather stout, not branching, Leaves rather long, slender, 
spreading, 15 to “2 in. thick, and 45 to 5°5 in. long, the internodes °75 in. long. 
Spikes about "2 in. long, 4- to 5-flowered. Flowers 74 in. long; floral bract minute, 
triangular. Sepals sub-equal, oblong, blunt; the lateral pair somewhat broader and sub- 
cymbiform, not keeled, Petals narrowly Ый; faleate, sub-acute, slightly exceeding 
the dorsal sepal in length. Lip as long as the sepals, broadly oblong, quite entire 
except for two triangular indentations near the base, the apex sub-acute; the upper surface 
slightly concave at the base, the disc not furrowed, Column short, the stigma trans- 
versely elliptic. 
Sikkim, at the tase of the range, collected by C. A, B. Anderson; in flower 
during March; Pantlings Drawing No. 470. 
Axx. Бот. Гот, Garp, Carcvrra, Vor. VIIL 
