Dactylorhiza traunsteineri, (Sauter) Soó, 1962

D. M. Moore (ed.), 1980, CCIII Orchidaceae, Flora Europaea, Vol 5: Alismataceae to Orchidaceae, Camebridge: Cambridge University Press, pp. 325-350 : 335

8. D. traunsteineri (Sauter) Soö ,

loc. cit. (1962) ( Orchis traunsteineri Sauter ).

Tubers deeply 2- to 4-fid, filiform-elongated at apex. Stem 20-50 cm, more or less flexuous, narrowly fistular, with distant leaves. Leaves linear- to oblong-lanceolate, acute or obtuse. Raceme cylindrical, more or less lax, many-flowered. Bracts longer than ovary. Flowers purple. Outer perianthsegments 7-8 mm, oblong-lanceolate, obtuse, inner segments obliquely ovate. Labellum 5-5-9 mm, porrect, obcordate, subdeltate or suborbicular, subentire to 3-lobed, with deflexed margin; lateral lobes ovate or obovate, rounded, crenulate; middle lobe oblong, obtuse, at least as long as the lateral. Spur pendent, conical-cylindrical,} as long to nearly as long as ovary. 2n = 80, 122.

Fens and marshes.

N. & C. Europe. Au Br Cz?Da Fe Ge Hb He fHo It Ju No Po Rs (N, B, C, W) Su.

1 Raceme few-flowered; labellum 5'5-7 mm, the lateral lobes longer than the middle; spur c. £ as long as ovary (c) subsp. l apponica

1 Raceme many-flowered; labellum 7-9 mm, the middle lobe at least as long as the lateral; spur c. 1 /2as long as ovary

2 Leaves erecto-patent, slightly introrsely curved; labellum with middle lobes distinctly longer than the lateral (a) subsp. traunsteineri

2 Leaves often arcuate-patent, strongly curved; labellum sub­ entire to shallowly 3-lobed, with middle lobe slightly longer than the lateral (b) subsp. curvifoiia