358 



Victoria: Bayswater, Mrs. Edith Coleman, 12/11/22. 



A moderately stout species with a rather loose spike of about 21 lavender 

 (or lilac) flowers. Each flower subtended by a short wide rather blunt appressed 

 bract, pedicel very short ; ovaries short and turgid, not markedly retracted from 

 the floral axis. Dorsal sepal greenish, about 7 mm. long, oblong-concave in its 

 lower two-thirds, contracted above this into a somewhat conical point, recurved 

 or erect ; lateral sepals green, stout, conical, fluted above, spreading, about 

 8 mm. long, very divergent. Petals lavender with narrow green central stripe ; 

 75 mm. long, 175 mm. in widest part, narrowly oblong, rather blunt, spreading. 

 Labellum lavender, nearly as long as the lateral sepals, widely ovate, nearly 

 sessile ; upper surface rather flat ; slightly flexed in the middle ; margins crenated 

 anteriorly ; the callous disc thin, greenish, ending in two inconspicuous knuckles 

 iust beyond the bend; the membranous part very wide; tip rather blunt. 

 Column short ; lateral appendages oblong-falcate with blunt often truncate tips 

 and small basal lobes, shorter than the rostellum, usually lavender tinted, adnata 

 to the sides of the stigmatic-plate as high as the base of the stigma ; anther 

 purplish, shorter than the lateral appendages and much shorter than the rostellum ; 

 caudicle rather long. 



Named in honour of Mrs. Coleman and her daughters, enthusiastic collectors 

 of orchids in Victoria. 



Prasophyllum Tadgellianum, n. sp, 



Planta robustiuscula, 15-23 cm. alta; folium spicam excedens ; spica laxa, 

 4-5 cm. longa. Flores fere 8-12, pedicellis brevibus, subvirides, interdum cum 

 notationibus bruneis. Sepalum dorsale late lanceolatum, subconcavum, acumi- 

 natum, circiter 6 mm., basi contractum ; lateralia usque ad medium connata, 

 circiter 5 mm. longa. Petala falco-lanceolata, subpatentia, circiter 5 mm. longa. 

 Labellum sessile, inferiore dimidio ad columnam erectum, deinde in semicirculo 

 recurvum, a basi suborbiculare, ultra flexum anguste cuneatum; pars callosa 

 triangularis, paene ad apicem prominente producta. Columnae laciniae in 

 altitudine rostello aequantes, falcatae, obtusae. Stigma oblique reni forme. 

 Anthera rostello paulo brevior. 



Victoria: Mount Bogong (6,500 feet), A. J. Tadgell, 7/2/23; Mount 

 Hotham (5,100 feet), Dec, 1914. 



New South Wales: Mount Kosciusko, Dr. Green, Dec, 1921. 



Plant rather short and stout, from about 15-23 cm. high; the leaf exceeding 

 the spike in length. Spike loose, 4-5 cm. long. Flowers usually 8-12, on short 

 pedicels, greenish, or yellow with chocolate markings down the middle of the 

 perinath-segments, also down the middle and on the sides of the labellum. Dorsal 

 sepal widely lanceolate, somewhat concave, acuminate, contracted at the base, 

 about 5 mm. long; lateral sepals connate to the middle, about 5 mm. long. 

 Labellum sessile, the lower half almost orbicular erect against the column, then 

 semicircularly recurved, narrowly cuneate beyond the bend ; callous part rather 

 widely triangular at the base, prominently raised and extending almost to the 

 tip of the distal half ; membranous part rather narrow throughout. Wings of 

 the column about equal in height with the rostellum, falcate with truncate or 

 obtuse tips. Stigma very oblique, reniform. Anther slightly shorter than the 

 rostellum. 



This plant was described by me as a variety of Prasophyllum Frenchii, 

 F. V. M., in Transactions of the Royal Society of South AustraHa, xlvi. (1922), 

 page 153. Fresh material has led me to believe that it should be regarded as a 

 new species. It is a less slender and stouter plant than P. Frenchii, the labellum 

 is not laterally contracted as in that species, and the lateral sepals in all my 

 specimens were definitely and consistently connate. 



It has only reached me from alpine stations. Mr. Tadgell states: "Mostly 

 they grow in exposed positions, nearly to the height of the cairn (6,508 feet) in 



