There was one illustrations found for E. Panneel
6 747370 Paphiopedilum exul (Ridley) Rolfe [125 313213 Cypripedium insigne var. exul Ridley]J.J. Linden, Lindenia, vol. 16 (Planches 721-768): t. 746 (1900) [E. Panneel]
6 747370 Paphiopedilum exul (Ridley) Rolfe [125 313213 Cypripedium insigne var. exul Ridley]