BY F. M. EAIEEY, F.L.S., ETC. 141 



jincm multo albo tomento induto. Columna dimidium scpalium attingens. 

 Pollinia duo ovalia, supra hijidum caudiculum tota sua longitudine in 

 columnam recumbmtem lata. 



Brevitas squamarum, florum color et numcrus, caudiculce rcclinatio, 

 qua comtans ccrnitur unoquoque examplari ad tristinam rcvocato, 

 optime sejungunt ham specicm a I). punctate 



Uomhie Jacoli JIamiltoni ham speeiem roco, qui curam gerens puoliei 

 Imtituti a viris'senio confectis, phcrimum adjuvat in colligendis 

 Naturalis Historice exemplaribus circa Imulas ad Moreton sinum 

 positas. 



Plant near D. punctatum, leafless, stems 1 to 3 feet high, from 

 a thick rhizome, the base clothed with thick, short, obtuse, 

 imbricate scales, the upper ones more distant and acute. Flowers 

 large, distant, but numerous, often from 24 to 30, usually of a 

 rich yellow spotted with purple, and occupying' the greater part 

 of the stem. Sepals and petals oblong, about eight lines long. 

 Labellum as long or longer, pouch short, lateral lobes linear, 

 obtuse, erect, yellow, middle lobe oblong, pink, disk with two 

 raised lines, the upper part with a dense white tomentum. 

 Column about half as long as the sepals. Pollen-masses two, 

 oval, the caudicles closely prostrate, rather long, like a lino on 

 the surface until lifted on the point of a needle. 



The shortness of the scales, the color of flowers and above all 

 the prostrate or recumbent position of the caudicles which is 

 constant in all the flowers examined, separate this species from 

 D. punctatum, It is the most attractive of all our Queensland 

 terrestrial orchids, and wants but to be seen to become a favorite 

 with cultivators of this curious family. 



Ilab. Stradbroke and Peel Islands, Moreton Bay. 



The specific name is in honour of Mr. James Hamilton, the 

 Superintendent of the Benevolent Asylum, Dunwich, who has 

 always lent a helping hand to collect the Natural History 

 specimens of the Islands of Moreton Bay. 



