j^6 NATIVE BRITISH ORCHIDACE^ 



Lusus ecalcarata Dr. Lip without spur. Pudmore, Surrey.' 

 Forma alhiflom Dr. Flower pure white, a soUtary specimen. Abington, Berks.' 

 Habitat. Moist meadows, marshy ground, rushy or boggy places where it 

 sometimes attains 2 ft. It does not like standing water. Flowers May to June, m the 



north June to July. 



Distribution. England, Wales, Scotland; Ireland in the north-east, apparently 

 absent from the east and south-east. Occurs sparsely in Scotland as far north as the 

 Shetlands. The Y2.r. ptdchella is abundant in Scotland, extending to the Shetlands. The 

 type occurs in Northern France, environs of Paris (Stephenson).^ "Pas de Calais a 

 Berck, Essarts le Roi, Vieux Moulin, Pierrefonds, Jouy-le-Comte, ArronviUe, jusqu a 

 Souppes dans le Sud de Seine et Marne."3 Holland (Sipkes).4 

 Orchis pr^termissa Dr., B.E.C. p. 34 (1915)- 



Included in O. incarnata by all previous authors who recognise that species and 

 in 0. latifolia L. by those who do not. Regarded as the type of 0. latifolia L. by 

 the late Mr Rolf e. 5 



O.pratermissa x Gynmadenia conopsea. See Gymnadema, p. 146. 



O.pmtermissa x incarnata. See 0. incarnata, pp. 191, 192. 



O. prcEtermissa x latijolia. See O. latifolia, p. 202. 



O.pratermissa x maculata. See O. maculata, p. 214. 



O.pratermissa x sub-sp. elodes. See 0. maculata, p. 216. 



10. Orchis latifolia L. 



PL 47 B; PI. G, fig. I (p. 191). Broad-leaved Orchis 



Tubers short, thick, forking into two widely divergent short thick tapering segments, 

 either or both of which may again fork; roots above tuber several, 2-3 mm. thick 

 by 5-10 cm. long. Stem erect (15-50 cm.), hollow, compressible, cylmdrical, ridged 

 above and often tinged with purple, with 2-4 wliitish ribbed sheaths, sometimes 

 green-tipped, at base. Leaves 4-6, more or less spreadmg, oblong or oblong- 

 lanceolate, obtusely pointed (7-17 cm. by 2-4 cm. broad), keeled, flat or slightly 

 hooded at tip, dark greyish or bluish green, more or less densely covered with purple- 

 black spots often ringed (i.e. with green centres), more rarely unspotted ; upper leaves 

 sessile hardly sheathing, bract-Uke, linear-lanceolate, tapering to a fine point, often 

 edged or suffused with purple. Spike usually dense, many-flowered, at first conical, 

 then cylindrical, 6-1 1 cm. long. Flowers pale lilac to rose-violet with darker red- 

 violet markings, showy, rather flat-lipped. Bracts lanceolate to ovate-lanceolate, 

 tapering to a fine point, keeled, glabrous, microscopically toothed, the lower often 

 exceeding the flowers and sometimes spotted, the upper slightly longer or shorter 



X B.E.C. p. 159 (-917). ' i-B- P- 96 (19^5). ; Camus, W -9- 



4 De Uvende Natuur, June, 1921. ^ ^••^- P- ^^5 {^^^°)- 



