1582 CXXVII. OECHIDEiE. [Cyrtostylis. 



1. C. reniformis (kidney-shaped), R. Br. Prod. 322; Benth. Fl. Austr. 

 vi. 876. A small delicate glabrous plant. Leaf orbicular-cordate or reniform, 

 radical, sessile, the lamina varying from under f to l^in. diameter. Scape from 

 under 2in. high and 1-flowered to 6 or 7in. with 4 or 5 pale red flowers. Bracts 

 subtending the pedicels short broad loose and truncate, or rarely acuminate. 

 Dorsal sepal 4 to 5 lines long; lateral sepals and especially the petals often 

 shorter and very narrow. Labellum nearly as long as the dorsal sepal, obtuse 

 emarginate or with a short point, the medial raised lines terminating in the centre 

 of the lamina or reaching nearly to the end. Column slender, f the length 

 of the dorsal sepal, the wings sometimes very short under the anther, sometimes 

 extending halfway down.— Lindl. Gen. and Sp. Orch. 398; Hook. f. Fl. Tasm. 

 ii. 26, t. 119 ; Hook. Journ. Bot. i. t. 135 ; Caladenia reniformis, Eeichb. f. 

 Beitr. 67 ; Fitzg. Austr. Orch. i., Pt. 4. 

 Hab.: Brisbane lliver, Moveton Bay, and other southern localities; 



42. CALADENIA, E. Br. 



(From kalos, beautiful, and aden, a gland.) 



Dorsal sepal erect or incurved over the column, usually narrow, lateral sepals 

 nearly equal to it but flat and spreading, petals narrow, erect or spreading, or 

 rarely sepals and petals all nearly equal and spreading. Labellum erect at the 

 base, undivided or 3-lobed, the lateral lobes when present ereet, the middle lobe 

 or upper part of the undivided labellum recurved, the margins often fringed or 

 toothed, the disk with sessile or stipitate oblong linear or olavate calli, in 2 or 

 more longitudinal rows, or irregularly crowded or scattered ; in one species no 

 calli but the margin fringed. Column erect or incurved, more or less 2-winged 

 in the upper part. Anther erect, 2-celled, the outer valves broad, the inner 

 much smaller, the connective usually produced into a point- Pollen-masses 

 granular. — Terrestrial herbs, usually hairy, with small underground tubers. 

 Leaf solitary, linear lanceolate or oblong, from within a searious sheathing scale 

 close to the ground. Flowers solitary or very few in a loose raceme, on an ereet 

 scape, leafless except a small narrow sheathing scale or empty bract about the 

 middle, and a similar bract under each pedicel, and in one species the radical leaf 

 and empty bract are deficient. Flowers usually erect, variously coloured. 



The Australian species are all endemic. 



Sect. I. Calonema. — Sepals acuminate, with long or short points, the dorsal one erect 

 and incurved. Labellum inconspicuously veined, the disk with 2 or more rows of calli. 



Sepal-points long. Lateral lobes of the labellum fringed, sometimes passing 

 into the middle lobe. 

 Leaf linear-lanceolate. Calli of the labellum in 4 to 6 rows 1. C. Patersoni. 



Sect. II. Eucaladenia. — Sepals acute or obscurely acuminate, rarely obtuse, the dorsal 

 one usually erect and concave. Labellum inconspicuously veined, the disk with 2 or more rows 

 of calli (sometimes arranged or united at the base almost in a semi-circle.) 



Flowers pink or white. 



Leaf oblong or lanceolate. Labellum deeply 3-lobed, the long calli in 2 

 short rows, more or less converging in a semi-circle. 



Calli all free . . 2. C latifolia. 



Leaf very long. Labellum with the lateral lobes small, the calli short and 

 thick in 2 rows, the rest of the disk covered with papillce or small calli. 

 Sepals and petals |in. or more. Middle lobe of the labellum entire . . 3. C. suaveolens. 

 Leaf narrow-linear. Labellum with the lateral lobes broad and obtuse. 

 Sepals and petals lanceolate, usually 6 to '8 lines long. Calli of the 



labellum in 2 rarely in 4 rows 4. C. carnea. 



Flowers blue. 

 Leaf usually linear, glabrous or slightly hairy. 

 Labellum broadly sessile, lateral lobes broad and obtuse, middle lobe 

 lanceolate; calli in 2, rows. 

 Leaf lanceolate, linear 5. C, cairulea. 



