120 ORCHID ACEAE. 3. Thelymitra. 



almost concealed behind the stigma, its point moderately long. Pollinia 2, deeply bilobed, 

 connected by short caudicle to the rostellum. Stigma large, ovate. Rostellum promi- 

 nent. 



Between Mount Compass and Port Elliot ; Geranium. Oct. -Nov. 



3. T. epipactoides (Epipactis-like), F. v. M. A plant of robust habit, 21-52 cm. high. 

 Leaf long fleshy, lanceolate, tubular at the base ; stem-bracts 1 or 2, leafy. Flowers 

 6-18, large, pedicellate, usually of a peculiar iridescent greyish-green color shot with 

 pinkish tints, sometimes brown with a metallic lustre. Perianth-segments ovate-lanceo- 

 late, about 10-11 mm. long. Column widely winged, hair-tufts white, turned upwards; 

 segment between the hair-tufts deeply 3-lobed ; the central division incurved, irregularly 

 denticulate at the top, and reaching a higher level than the adjacent ones ; lateral divisions 

 denticulate with oblique tips, passing upwards and inwards and often interlocking like 

 the fingers of two hands. Anther, with exception of its point, concealed behind the stigma. 

 Stigma situated well below the middle of column. 



Meningie ; Myponga ; Monarto South ; Tailem Bend ; Goolwa ; Inman Valley ; 

 also Victoria. Sep. and early Oct. 



4. T. truncata (truncate middle lobe of hood), Rogers. A species of slender habit, 

 about 30 cm. high. Flowers 2-6, blue, petals spotted. Column rather widely winged ; 

 hair-tufts white, projecting upwards and forwards and rather higher than the middle 

 lobe ; lobe between the hair-tufts a truncated yellow cone, undivided, its upper border 

 slightly denticulate, its back not crested. Anther with well marked point, a considerable 

 portion showing above the stigma. Stigma large, somewhat quadrangular ; the viscid 

 disk situated in a deep depression in its upper border. 



Myponga. End of Oct. 



5. T. luteociliata (yellowish-hairtufts), Fitzg. Slender, 15-37 cm. high. Leaf long, 

 fleshy, slightly channelled, narrow -linear to rather broadly-linear. Flowers pinkish or 

 light red, generally 2-5 on slender pedicels ; rarely expanding. Perianth segments oblong- 

 lanceolate, not very acute, 7-8 mm. long. Column erect, 4-5 mm. long, wings not very 

 wide, hairtufts yellow, turned upwards ; lobe between the hairtufts with a convex crenate 

 margin, less distinctly hooded than in most members of this section. Anther situated 

 above the stigma, its rather blunt triangular point projecting between the hairtufts, 

 dehiscing in the early bud. Stigma semicircular, oblique, the lateral wings of column 

 uniting to form a cup-like depression at its base. Rostellum situated in middle of upper 

 border of stigma. Pollinia 4 (in 2 pairs) connected directly with viscid disk. 



N.P. and Mount Lofty Range ; Eyre Peninsula, and Kangaroo Island ; also Victoria. 

 Sept. -Oct. 



6. T. grandiflora (large-flowered), Fitzg. The most robust member of the genus, 35-75cm. 

 high. Leaf widely lanceolate, sheathing for several inches at the base, thick, dottted or 

 spotted, generally enclosing base of lowest bract. Stem-bracts 3 or 4, large, acute, lower 

 ones leafy. Flowers purple-blue, usually numerous in a long raceme, about 3 cm. in 

 diameter. Perianth-segments rather acute, concave, oblong-lanceolate, 13-16 mm. long, 

 the labellum narrower than other segments. Column erect, 6-7 mm. high, hooded ; 

 wings wide and inflated, hairtufts white, horizontal ; intermediate lobe arched, bifid, 

 the segments deeply denticulate, the crest higher than the hairtufts, the profile falcate. 

 Anther wholly concealed behind the stigma. Pollinia 4 (in 2 pairs), lamellar (plate-like) 

 connected directly with the viscid disk, no caudicle. Stigma ovate, situated unusually 

 low down in the concavity of the column below the middle. Rostellum prominent, viscid. 



N.P.. Mount Lofty Range ; Goolwa ; Wardlow Vale ; Hughes' Gap (Flinders Range) ; 

 Kangaroo Island ; also Victoria. Oct. -Nov. 



7. T. aristata (bearded, referring to the hair-tufts), Lindl. (PI. 6, i., figs. 1-3.) Moderately 

 stout, seldom exceeding 40 cm. high. Leaf sheathing towards the base, often 15-22 cm. 

 long and 7-12 mm. wide, lanceolate, rather flat. Flowers mauve or lavender, sweet- 

 scented, 3-8, about 2\ cm. in diameter, perianth-segments elliptical-lanceolate, 13-15 mm. 

 long ; readily expanding in sunshine. Column erect, hooded, about 6 mm. high ; hair- 

 tufts (fig. 1, ap.) white, horizontal ; intermediate lobe cap-shaped, dilated laterally, dark- 

 brown towards the back, yellow towards the front, sometimes cayenne-pepper-colored, 

 with a V-shaped notch in the centre, crest reaching to about the level of the hair-tufts. 

 Anther with short blunt point, only extreme base concealed by stigma. Pollinia 2, each 

 deeply bilobed, attached directly to viscid disk. 



N.P. and other parts of Mount Lofty Range and seacoast ; widely distributed ; also 

 in all other States except Queensland. Sept. -Nov. 



8. T. longifolia (long -leaved), Forst. Of variable stature, usually slender, 30-60 cm. 

 high ; sometimes rather robust. Leaf very variable, often long and narrow. Flowers 

 blue, not scented, rather large, occasionally solitary but commonly 2-6 in a raceme. 

 Perianth -segments rather acute, 13-15 mm. long. Column erect, about 6 mm. high, 

 hooded ; hairtufts white, bent upwards : intermediate lobe very dark-colored except 

 at margin, only slightly notched, arched and somewhat tubular, not laterally dilated 



