154 ORCHIDACEAE. 



floral pedicel. Flowers 3 -(3, in a loose raceme, rather large, greenish with reddish tints 

 on lower lip and margins of galea. Galea from base to crest about 12 mm. long, the 

 apex produced into a fine recurved point, 8-10 mm. long. Lower lip reflexed, the lobes 

 ovate, including an acute sinus, prolonged into fine diverging tails 15-17 mm. long. 

 Labellum thick and fleshy, glandular on a movable semicircular claw, very irritable, 

 slipper-shaped, tip slightly cleft below and turning a little downwards, contracted near 

 the base ; lamina about 3^ mm. long, the basal margin thickened and slightly raised, 

 usually without hairs, in front of this hollowed out for the greater part of its length ; 

 under-surface deeply channelled from base to tip ; lateral margins ciliate ; appendage 

 almost obsolete, represented by the raised basal margin. Column about 9 mm. long, 

 incurved, reaching nearly to the top of the galea ; wings quadrangular, upper angle 

 rather acute and ciliate, the lower one quite blunt and ciliate, anterior margins with 

 inturned hairs. Stigma semi-elliptical, upper margin notched or toothed. 



The Grange. Ranging from Mount Patawurta (Flinders Range) to Millicent, near Mount 

 Gambier ; also all Eastern States, not including Tasmania. Aug. -Sept. 



20. P. longifolia (long-leaved), R. Br. Rather rigid, 10-30 cm. high. Basal rosette 

 not present at the time of flowering ; stem-leaves reduced to small scales near the base; 

 acute, clasping, narrow-lanceolate, 1-4 cm. long above the middle ; very rarely a lateral 

 basal tuft present in addition to the stem-leaves. Flowers usually 3-8, in a raceme, 

 rarely 1, green, an acute bract subtending each pedicel. Galea about 15 mm. or less 

 from base to crest, gradually incurved, apex acute but not prolonged into a fine point. 

 Lower lip reflexed in the mature flower, rather narrow, the lobes with short acuminate 

 tips. Labellum on a short movable claw, very irritable, oblong, slightly 3-lobed towards 

 the end ; the lateral lobes very small ; the tip or middle lobe upturned, bifid ; lamina 

 about 8 mm long, papillose -glandular, convex and much thickened at the base with a 

 short pyramidal appendage, thereafter concave ; channelled below. Column incurved, 

 reaching to top of galea ; wings nearly square, upper margin crescentic with a short 

 rather blunt tooth about the middle, upper angle blunt and rounded, front margins with 

 inturned hairs. Stigma lanceolate. 



N.P. and other parts of Mount Lofty Range ; Clinton ; Bordertown ; Millicent ; 

 Yeelanna ; Kangaroo Island ; all Eastern States and Tasmania. June-July. 



21. P. vittata (banded, referring to the stripes on the galea), Lindl. Similar in habit 

 to P. longifolia, but with rather wider leaves. Flowers nodding, greenish with many red 

 tints and stripes, sometimes solitary, more frequently several in a compact terminal raceme. 

 Galea broad, about 14 mm. long from base to crest, its aperture directed downwards, 

 the apex ending in a very short acute point, greenish with dark-green or dark-red longi- 

 tudinal stripes, the petals more or less completely red. Lower lip reddish, reflexed or 

 recurved, very wide, usually ovate-orbicular, about 14 mm. long and 11 mm. wide, the 

 lobes with short acute points. Labellum on a rather long and vary irritable claw, broadly 

 oblong, contracting somewhat abruptly to a blunt point ; tip bifid and upturned ; margins 

 otherwise entire ; lamina about 5 mm. long, glandular, margins hai*y, the base much 

 thickened and raised into an eminence furnished with a free hairy linear process directed 

 forwards and upwards, the upper surface thereafter concave with a broad raised line 

 down the centre ; lower surface longitudinally channelled. Column reaching to crest 

 of galea, greatly incurved ; wings with a small blunt tooth at upper angle, lower lobe 

 narrow elongate almost acute ciliate, front margins with long inturned hairs. Stigma 

 membranous, obovate, not prominent, much expanded laterally, exceeding the column 

 in breadth. 



N.P. and other parts of Mount Lofty Range ; Beetaloo ; Halbury ; Yeelanna ; Un- 

 garra ; Goolwa ; Millicent ; Kangaroo Island ; also Victoria ; Tasmania ; and Western 

 Australia. May-July. 



