CCIII Orchidaceae Author D. M. Moore (ed.) text 1980 Cambridge University Press Camebridge Flora Europaea, Vol 5: Alismataceae to Orchidaceae 325 350 book chapter 10.5281/zenodo.215522 e75af61c-ea0f-4791-94c6-806a39e338ea 052120108X 215522 3 . O . lutea (Gouan) Cav . , Icon . Descr . 2: 46 (1793) . Plant 7-30 cm . Basal leaves ovate, acute . Spike 2- to 7-flowered, lax . Perianth-segments subglabrous or papillose at margin; outer c . 10 mm, oblong-ovate, obtuse, green, the lateral sub-patent, the median incurved; inner perianth-segments as long as the outer, linear-oblong, green or yellowish . Labellum 9-18 mm, suborbicular or oblong, with flat margin, dark brown or blackish- purple, with yellow or greenish marginal zone, papillose, 3-lobed, not globose-inflated; lateral lobes ovate, obtuse; middle lobe reniform, often incised; speculum entire or 2-lobed, grey or bluish-grey . Connective obtuse . Mediterranean region, C . & S . Portugal . B 1 Co Cr Ga Gr Hs It Ju Lu Sa Si Tu . 1 Labellum 12-18 mm, the lobes subequal or the middle lobe larger, with marginal zone 2-3 mm wide (a) subsp . lutea 1 Labellum 9-12 mm, the lobes subequal or the middle lobe smaller, with marginal zone 1 -2 mm wide 2 Marginal zone of labellum with blackish-purple hairs, the rest of the labellum (except the speculum) blackish-purple (c) subsp . melena 2 Marginal zone of labellum glabrous, the rest of the labellum (except the speculum) dark brown (b) subsp . murbeckii