213 



9. P. gracile. Rogers, sp. nor. PI. xii.A, figs. 1 to 11. 



A graceful species rather more than a foot in height. 

 Fistula ^ inch below spike. Leaf reaching to within an inch 

 of top of spike. 



Spike 4i inches, not crowded ; flowers 30, rather large, 

 yellowish-green, each subtended by small ovate-lanceolate 

 bract and standing well out from axis of spike. 



Ovary slender, stalked. 



Lateral sepals between 5 and 6 lines long, connate in 

 their proximal third, concave on top ; with subulate, re- 

 curved, bidentate points; narrow, parallel. 



Dorsal sepal nearly 5 lines long, ovate-lanceolate, in- 

 curved. 



Petals about ih lines, linear-lanceolate, tips incurved 

 so as to meet each other and also the tip of the dorsal sepal. 



Lateral index about 76. 



Labellum on a well-marked claw, recurved near the 

 middle ; erect portion deeply concave with entire margins ; 

 the part in front of bend narrow-triangular with sharp point, 

 slightly undulating margin and marked constriction (or late- 

 ral jjinch) about one-third of the distance beyond the bend ; 

 membranous portion white and glandular, nearly equal in 

 extent to callous portion ; callous part raised just in front 

 of bend, ending abruptly just beyond the constriction, but 

 not reaching the tip. 



Lateral appendages shorter than rostellum and anther- 

 case, hardly falcate, with blunt tip and a rather narrow 

 basal lobe reaching to about the middle. 



Anther-case with short, erect point, about same height 

 as rostellum. 



Pollinia 2 : each longitudinally furrowed. 



Caudicle of medium length and usual attachment. 



Stigmatic surface reniform. 



Found late in October at Sandergrove. 



10. P. constrictum, Rogers, sp. nov. PI. xiii.B, figs. 1 to 5. 



Plant about a foot or less in height. 



Lamina of leaf about 5 in. long, extending beyond 

 spike : fistula about li in. below spike. 



Spike about 3| in., with about 20 rather crowded flowers. 

 Flowers sessile, prune-coloured, with small ovate bract clasp- 

 ing the proximal end of ovary. 



Lateral sepals stout, connate to their middle, markedly 

 bidentate, nearly 4 lines, inner surface fluted. 



Dorsal sepal broadly-lanceolate with gland at tip, in- 

 flexed over column, 3i lines. 



