tHE ' TASMANIAN FLORA. 187 



stalks. Perianth about | inch long, pale straw-colonred, veined with brown. 

 Labellum recurved, margin wavy, the flower inverted. 



East Coast, Bass Straits ; also in New South Wales and Victoria. ' Fl. 

 Oct. -Nov. 1 



2. SARCOOHILUS. 



Perianth-lobes nearly equal, the lower ones combined with the columnar 

 projection. Labellum arising from the end of the projection, with 2 erect, broad, 

 lateral lobes, and a very minute middle terminal lobe, beneath which is a deep 

 fleshy projection. Cqlumn short, but with a rather long projection extending 

 below the ovary, winged. Anther terminal, lid-like. 



A genus of epiphylal or creeping species, found chiefly in the East Indies. 



S. PARVIPLOEUS, Lind. Epiphytal, the rhizomes extending for some distance 

 :along the support, slender. Stem short, covered with old leaf-sheaths. Leaves 

 ijarrow-oblong, about 3 inches long. Plowering-scape about 4 inches long, 

 drooping. Flowers often 6 or 8, on short slender stalks, pale yellowish-green, 

 tinged with red -brown, except the labellum, which is white and pink, f-f nch 

 long. Gunnia austroMs, Hook. 



Circular Head, Grreat Swanport, Macquarie Harbour, <fcc. ;• Bass Straits ; also 

 in New South Wales, Victoria, and Queensland. El. Nov. 



3. DIPODIUM. ' 



Perianthrsegments nearly equal, spreading. Labellum erect, adnate to the 

 •column at the base, 3-lobed, the lateral lobes very narrow ; the middle lobe long, 

 ■expanded, bearing a thickened pubescent centre near the end. Column erect, 

 .with very narrow wings. Anther terminal, lid-like. 



A small genus, confined to East Indian, Australian, and adjacent distribution. 



D. PUNCTATUM, R. Br. A thick, unbranched, fleshy plant, mostly 1 foOt high, 

 with a thick tuberous root, probably parasitic; Leaves reduced to brown scales. 

 Flowers numerous, in a terminal raceme. Perianth pink, spotted with dark 

 pink ; segments narrow, recurved, | inch long. Labellum rather longer than the 

 •other segments. Column short. 



Found in favourable seasons in most parts, except perhaps the west. On dry 

 hills and moist places indiif erently. Throughout Australia, exc6pt the west. Fl. 

 Dec-Jan'. 



4. GASTRODIA. 



Perianth-lobes united in a 5-lobed tube, swollen at the base. Labellum short, 

 adnate to the perianth below, irregularly 3-lobed, the lateral lobes undulate or 

 fimbriated, the central one short and obtuse, upper surface with a thickened 

 longitudinal plate, broader towards the base than along the central lobe. Column 

 •long, narrow, very narrowly winged. Anther terminal, cup-shaped. 



A small genus, chiefly East Indian. Only one species occurs in Austi'alia, "and 

 two in New Zealand. 



G. SESAMOIDES, R. Br. A simple erect plant, 6-18 inches high, succalent, 

 brown, with a thick tuberous root, parasitic possibly on small roots of trees. 

 Leaves none, represented by few scarious scales. Flowers in a terminal raceme. 

 Perianth brown outside, white and yellow within, \-'^ inch long. Stigma at the 

 ibase of the column discoid, and rather prominent. 



Common in bush-land ; also throughout Eastern and Western Australia. PI. 

 Dec.-Feb. 



5. SPIRANTHES. 



Three upper perianth-segments erect, partially united or cohering into a 

 hood ; lower segments free, spreading. Labellum short, broad, entire, embracing 



