1328 CXXVII. ORCHIDEiB. [Deiidrobiimi. 



away to a rosy pink. Labellum scarcely above Jin. long, contracted into a claw 

 at the base, the lateral lobes broad short and acute, the middle lobe recurved, 

 ovate, undulate, with a small scarcely acute point ; the disk with 3 raised lines or 

 jjlates between the lateral lobes merging into a single broad high much undulate 

 tomentose yellow crested one, extending to the end of the middle lobe. 

 Capsule elongate-pyriform, about lin. long, 3-furrowed, green. — Lindl. Gen. and 

 Sp. Orch. 87 ; Beichb. f. Beitr. 49 ; F. v. M. Fragm. i. 213 ; Bot. Mag. t. 2906 

 (incorrect as to stem) ; Fitzg. Austr. i. Pt. 2. 



Hab.: From the Tweed to Barron Biver. Often on stems of Iristania conferta (the 

 Brisbane Box tree). 



12. D. Bairdianum (after J. C. Baird), Bail. 1st Suppt. to Syn. Ql. Fl. 



Stems from a shortly creeping rhizome, 3 to 7 inches high, terete or furrowed, 

 and slightly constricted at the nodes, attentuated towards the base, the upper 

 part thickening to nearly ^in. diameter. Leaves (only seen on a young growth) 

 linear-lanceolate, about 2in. long and a ^in. broad, keeled and prominently 

 striate, the apex obliquely emarginate. Eacemes erect on the old leafless stems, 

 2 inches long, bearing 3 flowers. Bracts small, lanceolate. Pedicels fin. long. 

 Sepals ovate, about 5 lines long, yellowish-green, the two lateral ones partly, 

 connate, and forming with the base of the column a blunt spur. Petals of the 

 same colour, but shorter and thinner in texture than the sepals. Labellum 

 rather longer than the other segments, thick, the lateral lobes oblong and of a 

 dark-purplish colour, the middle lobe somewhat reniform with the sides curved 

 upwards, marked with dark-purple veins ; disk white, with 2 raised plates which 

 end at the base of the middle lobe. Column short, purple in front, wings narrow. 

 Anther-lid small. 



Hab.: Between Heiberton and Mourilyan Harbour, J. W. R. Sluart. This species is allied to 

 D. ccmulum and U. Kingianum, but quite distinct from either. 



13. S. Kingianum (after Capt. King), BiJw. in Lindl. Bot. lieg. 1844, 

 :Misc. 11, 1845, t. 61 ; Bentli. Fl. Austr. vi. 280. Stems usually 3 to 9in. high, 

 striate with prominent angles, thickened at the base. Leaves at the summit of 

 the stem 8 to 5, lanceolate or oblong-lanceolate, acute, 3 to 4in. long. Eacemes 

 within or above the leaves 1 to 3, longer than the leaves. Flowers from a reddish 

 purple to nearly white with a Heliotrope fragrance. Pedicels ^ to ^in. long. 

 Bracts very small. Sepals broadly lanceolate, the lower ones much falcate, 4 

 lines long in some specimens, fully 5 in others. Petals about as long but 

 narrower. Spur conical, slightly incurved about 3 lines long. Labellum not 



. much shorter than the sepals, not undulate, the lateral lobes very prominent, 

 almost oblong, obtuse, the middle lobe scarcely" longer, but very broad, almost 

 reniform, the disk with 3 raised lines or plates extending to the base of the middle 

 ]obe, but not beyond. — Bot. Mag. t. 4527 ; F. v. M. Fragm. iii. 60. 



Hab.: Moreton Bay, iVuhcifl ; Glas? House Mountains, J". F. Ba»7ei/ ; other southern localities. 



Var. puUiduiii, Bail., Proc. Boy. Soc. Ql. i. The clustered stems weaker than the typical 

 form, often densely matted together and thus forming large patches on the rooks. Stems 2 to 

 9in. high, the base enlarged in pseudo-bulbs. Leaves of a thin texture, 2 to 3in. long,, about Jin. 

 broad near the base, and tapering towards the apex, Eacemes slightly longer than th; leaves, 

 bearing 3 or 4 pale lilao-stained flowers. 



Hab. : Main Eange, Benj. Crow. 



Var. Silcocliii, (after P. Silcock) Bail. Stem and leaves firm as in the typical form. Flowers 

 pure white except the labellum and of thick substance. Pedicels white, Jin. long. Ovary 

 green, 2 lines long. Dorsal sepal 5 lines long, 3 lines broad, cymbJform, lateral ones broad, 

 falcate, from point to point 7 lines, quite enclosing the elongated base of the column (spur), 

 Petals long as dorsal sepal but not so broad, incurved and meeting over the column. 

 Labellum about as long as the sepals, lateral lobes spreading, pointed at the ends and 

 reaching above the column, mai'ked with lilac lines, middle lobe broadly cordate, apiculate, 

 lilac lined with white. The disk bearing 3 thick ridges ending in points at the base of the 

 middle lobe. Column thick and short. Anther-lid ciliate in front. Pollen-masses amber- 

 coloured. 



Hab.: Towards the Tweed Biver, P. Silcock. 



