I gathered this little group for a photo session at my work place: P. henryanum (NS: 7 cm): P. Wössner Helene gx. Green Charlene gp. (NS: 7 cm). IRL it has a more outspoken greenish hue:
P. barbigerum fma. lockianum, syn. coccineum (NS: 9 cm):P. charlesworthii (NS: 7 cm):
Jens, that's a a very nice display. Congrats! The flower of Paphiopedilum coccineum (according to KEW its an accepted species) seems to be huge compared to P. henryanum and P. charleworthii.
'Fibre' from these pages created (with the help from another STC-member) this albino hybrid of charlesworthii sandowiae x helenae aureum. He informed me, they were registered as a group by RHS (whatever that means?). If you write the name in full, it is:
Paphiopedilum Wössner Helene grex Green Charlene group