From: Davis (1999). Permission has been granted by the author.
G. plicatus M. Bieb. subsp. byzantinus (Baker) D.A. Webb, in Bot. J. Linn. Soc. 76(4): 310 (1978).
G. byzantinus Baker;
G. plicatus M. Bieb. var. byzantinus (Baker) Beck.
INNER PERIANTH segments with two green marks on each segment, one apical and one basal, the apical mark ± V- to U-shaped, mostly confined to the apex, the basal mark near the base and covering up to slightly more than half of the segment.
Flowers between January and April in nature; December and March in cultivation.
Notes: The Kew botanist J.G. Baker named G. byzantinus in 1893, using plants sent to him by James Allen of Shepton Mallet, Somerset, which Allen had received from Istanbul. The epithet byzantinus refers to the ancient Greek city of Byzantium situated on the Bosphorus, and known today as Istanbul. Galanthus byzantinus was later made a subspecies of G. plicatus (Webb 1978), a valid taxonomic decision as it differs from G. plicatus only by the number of marks on each inner perianth segment.
Galanthus plicatus subsp. byzantinus occurs in a relatively small area in northwestern Turkey (in Asia), in the provinces of Istanbul, Kocaeli, and Sakarya (Adapazari), and possibly Bursa. It has not been recorded from the part of Turkey that lies in Europe. Galanthus plicatus subsp. byzantinus has a far more restricted natural distribution than subsp. plicatus and is also less frequent in cultivation.