Bc. Olna ̌zn}
Bc. Olna = Bc. Digbyano-Mossiae x C. Hassallii (1934)


B. digbyana
Bc. Digbyano-Mossiae C. mossiae
1889 C. mossiae Lc. Canhamiana
Bc. Olna 1885 L. purpurata
1934 Lc. Britannia
Lc. Hassallii 1903 C. warscewiczii
1921
C. warscewiczii

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