40 
The Queensland Naturalist February, 1937 
It bears a superficial likeness to Pt. foliata, Hk.f., 
but differs chiefly in the absence of leaf-] ike stem-bracts; 
in the less erect galea and in the short points to the con- 
joined sepals. 
Its closest affinity is Pt. curt a, s R.Br., but in this case 
we have (in Pt. curia) a much larger flower, and a 
strangely-twisted labellum, etc. 
I have named this plant after Mrs. H. G. Curtis (nee 
Hilda Geissmann), of Tambourine North, South Queens- 
land, the original re-discoverer of the plant, and one who 
has done, and is still doing, much for nature study in 
Queensland. 
The new species appears to be identical with the form 
figured by FitzGerald in his work G), and there referred 
to as a hybrid, curta X pedunculata , but there is little 
doubt it is a very good species — long established, and 
quite easily distinguished from all other described forms. 
It grows in small colonies in the rich black humus soil, 
associated with “rain forests,” favouring shady places 
on the edge of thick scrub, hence easily overlooked. 
Flowering: August to early October. 
DISTRIBUTION. 
The following habitats in Queensland have been 
courteously supplied by Dr. Ledward: — 
Queensland . — Tambourine Mountain (scrub-covered 
plateau, 1,800 ft. alt.), Mrs. Curtis, Dr. Ledward. Prior 
to 1936, Gunanaba Creek (on edge of rain forest, 500 
ft. alt.). Dr. Ledward (1936). Springbrook Mountain 
(on border, scrub-covered plateau, 2,000-3,000 ft. alt.), 
growing in sheltered spots. Dr. Ledward (1936). 
New South Wales . — Brunswick (scrub-covered places 
adjacent mangroves). Mr. F. Fordham, Miss Thistle 
Harris, W. H. Nicholls (Aug., 1936). 
(1) Australian Orchids. Vol. 1. 
