Serapias

Buttler, K.P. 1986: OrchideenP. Delforge 1994: Guide des orchidées d'Europe, d'Afrique du Nord et du Proche-Orient
This new key needs further testing. Serapias taxonomy is still much disputed. The given measurements refer to Cypriot and non-Cypriot proveniences.
1Epichile 18-26(-33) x 10-14(-20) mm, at the base 7-10(-15) mm wide
1'Epichile (6-)7-18(-20) x 3.5-7.5 mm, at the base 2.5-5 mm wide
2Epichile (10-)12-18(-20) mm long; hypochile reniform to obcordiform, rarely cuneate at the base
2'Epichile (6-)7-11.5 mm long; hypochile semicircular to cuneate at the base
3Hypochile broadly cuneate at the base; autogamous, with swollen ovary even in bud stage
3'Hypochile semicircular; allogamous, ovary not swollen in bud stage