Aceras anthropophorum (Linnaeus) Aiton 1814

Abstract

1. A. anthropophorum (L.) Aiton fil., Epit. Hort. Kew. 281 (1814). Stem 10-40(-60) cm, glabrous, with brownish, sheathing basal scales. Lower leaves 5-12 cm, oblong to oblong-lanceolate, obtuse, canaliculate, erect, later erecto-patent, the upper smaller or bract-like. Spike narrowly cylindrical, many-flowered; bracts membranous. Flowers greenish-yellow, often with reddish streaks and margins. Outer perianth-segments 6-7 mm, ovate- lanceolate, obtuse, the inner shorter and narrower. Labellum 12-15 mm, pendent, yellowish, often reddish-brown; lateral lobes c. £ as long as the middle. 2n=42. Grassland, rarely scrub; calcicole. Mediterranean region and W. Europe, north­ wards to C. England and the Netherlands. Be B 1 Br Co Cr Ga Ge Gr He Ho Hs It Ju Lu Sa Si. Frequently hybridizes with species of Orchis, especially O. militaris, O. purpurea and O. simia.