narrowed to the base, the proximal margins fimbriated ; 
the dise with the proximal two thirds densely adorned 
with elongated, acute, finger-like calli and with two in- 
conspicuous parallel, sublamellate calli at the base, the 
distal third calvous or essentially so. Column of the ge- 
nus, about 4 mm. long, auriculate winged at the base: 
anther about 2.5 mm. long. 
British New Guinea: sporadic on poorly drained soils, savannah 
forests, Tarara, Wassi Kussa River, Western District, stems green, 
erect from an ovoid tuber, flowers green densely mottled and shaded 
with red, beard of the labellum a deep metallic blue at the base, dis- 
tal two thirds maroon-red, January 1937, Brass 8600 (Typr in Herb. 
Ames No. 61165). 
Calochilus is a small genus of some ten or twelve spe- 
cies which has its center of distribution in Australia. It 
belongs to a group that is essentially Australian. The 
genus is also represented in Tasmania, New Zealand and 
New Caledonia. The species described here extends the 
range of the genus to New Guinea. 
Calochilus caeruleus is easily distinguished from all 
other species of the genus by the obovate-cuneate lip, 
as well as by other details of the perianth. The leafless 
or nearly leafless stem is unusual in the genus. 
Drakaea irritabilis (Mveller) Reichenbach filius 
Beitrage Syst. Pflanzenk. (1871) 68; Xenia Orch. 2 
(1874) 208, t. 189—Bentham FI]. Austral. 6 (1873) 368. 
Arthrochilus irratabilis Mueller Fragm. 1 (1854) 43. 
Papua: savannah forest, occasional on wet flats, Tarara, Wassi Kus- 
sa River, Western Division, flowers green, January 1937, Brass 8722. 
Drakaea is a small genus of about seven species pre- 
viously known only in Australia. Six of the seven species 
seem to be limited in their distribution to West Australia. 
One species, Drakaea irritabilis, is known from the east- 
ern coast of Australia, in Queensland, and now from the 
region of the Fly River in Papua. 
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