Na crocus biflorus ssp. isauricus te hebben gepost op SRGC forum gaf Janis volgende reactie:
Dit laat blijken dat het voor ons als liefhebbers zeeeer moeilijk wordt om een collectie nog deftig op naam te hebben.
Such crocus was for a long regarded as C. isauricus, but recently Kerndorff, Pasche & Harpke, showed that true C. isauricus comes from more Eastern locality near Sertavul and looks quite different.
The main features of flower are
Flowers – of a very bowl-shape with segment-proportion of outer segments 2.2. (see attached pictures)
Flower segments – Inside all segments are invariably white without any markings.
Outer segments –22-26-33 mm long and 9-12-14 mm wide, outside predominantly very finely speckled light bluish violet, without dark basal blotches.
Those from localities situated west were described as several new species, and on your pictures could be some of those, something resembles C. mawii or C. concinnus. Most likely one of those was selected by O. Erol et al. as type of C. isauricus, but there are some features on attached original herbarium of Siehe (his gatherings were used as type for description of C. isauricus), which force me to follow HKEP opinion, and namely it is dimensions of flower segments. In C. concinnus (if I correctly identified it): “The segment proportion of outer segments is 3.4 signalising comparatively strap-like segments”. But in crocus from Sertavul: “Segment-proportion of outer segments very low (2.2) which signalises a very bowl-shaped flower”. Flowers on published herbarium sheet are distinctly bowl-shaped (segment proportion ~ 2.1-2.5), so they more match with specimens from Sertavul. I would not name C. concinnus flower segments as “strap-like” but its flowers certainly are not bowl-shaped, too.
