C. Penang ̌zn}
C. Penang = C. bowringiana x C. Nigrella (1963)


C. dowiana
C. bowringiana C. Fabia
C. Penang 1894 C. labiata
1963 C. Nigrella C. dowiana
1934 C. Fabia
1894 C. labiata
C. Ypres
1918 C. dowiana
C. Mrs Pitt
1913 C. loddigesii

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