200 THE TASMANIAN FLORA. 



not 1 line long ; lower division bent downwards, divided from about the middle, 

 the length of the points correspond with those of the upper division. Labellum 

 about 1^ line long, ovate-oblong, flat or concave above, thick and protuberant 

 towards the base below, usually ciliate ; basal appendage short and thick or 

 obsolete. Column curving forward, the wings with a very small subulate 

 protuberance above, and a broad, flat, lower lobe. P squamata, R. Br. (partly). 

 George's Bay, Meander River, Port Sorell, Mount Wellington (?). It occurs 

 nearly throughout Australia. Fl. Dec. 



15. P. LONGiFOLiA, R. Br. Leaves always on a separate stem, sometimes 

 arising from the base of the flowering-stem, but generally free from it, ovate to 

 linear, |-1 inch long, shortly stalked. Stem slender, 6-18 inches high, bearing 

 4 or 5 linear- lanceolate leaf -like bracts, with short, narrow, sheathing bases, besides 

 the floral bracts. Flowers usually 4-5, in a spike-like raceme, sometimes 

 solitary, ^-J inch long. Upper division of the perianth erect, much curved in 

 the upper third, but with a short straight point ; lower division descending, bifid. 

 Labellum 2|-.3 lines long, oblong, thick, with a bifid incurved apex, and a 

 thickened erect process near the base. Column erect, the wing nearly square, 

 margin ciliate. 



Very common. It occurs also in New South Wales, Yictoria, and South 

 Australia. Fl. winter to late summer. 



16. P. viTTATA, Lindl. Habit similar to the last. Leafy bracts rather broader, 

 with larger and more sheathing bases. Flowers rather larger and darker, the 

 upper division curved through the whole length. Labellum with rather less 

 conspicuous terminal teeth and a small basal protuberance. 



Islands of Bass Straits ; also in Victoria, South Australia, and West Australia. 

 Fl. June-July. 



15. CALBANA. 



Flowers reversed, so as to bring the labellum uppermost. Perianth-segments 

 linear. Labellum ovate, convex, articulated on a curved, strap-like, very 

 irritable, support. Column long, curved, with very broad inflated wings. 

 Anther valvular. Stigma peltate. 



An Australian genus of 4 species. 



UppeiTOOst pair of segments recurved. Surface of 



labellum plain 1. C. major. 



All segments directed forwards. Surface of labellum 



nodulated 2. G. minor. 



1. C. MAJOR, R. Br. Leaf .solitary at the base of the stem, linear-lanceolate. 

 Stem slender, 9-18 inches high. Flowers usually 2 or 3, in a terminal raceme, 

 dark red-brown, as well as the stem and leaf, f-1 inch long. The segment 

 arching over the column, lanceolate, about | inch long, the side segments filiform 

 the normally lower pair, which are turned uppermost by reversion of the flower' 

 curved sharply back, linear, dentate at the upper third. Labellum about 4 lines 

 long, the centre veiy convex, extended into an anterior flat beak and a posterior 

 recoiled strap, plain and shining ; recurved over the top of the flower when fully 

 out; closed in the opening between the column-wings in the bud and when 

 irritated. Column cui-ved, narrow, with Yerj broad wings throughout its length 

 forming a dilated cup. 



Common in heathy land. It occurs also in Queensland, New South Wales and 

 Victoria. Fl. Dec. -Jan. 



2. C. MINOR, R. Br. Habit similar to the last, only smaller. Leaf linear 

 about 3 inches long. Stem about 6 inches high. Flowers usually 2 or s' 

 about \ inch long, dark red-brown. Perianth -segments about | inch long, al' 



