This is a hybrid of Den. aphyllum and Den. primulinum. The contrasting color of the dark pink petals and sepals against the white lip makes the flowers very attractive. This clone came from Japan. The plant blooms later than Den. anosmum. I'm not sure how the varietal name was derived because the petals and sepals are dark pink, not red.
Dendrobium Jan Orinstein 'Red & White' by
hawaiiansunshine, on Flickr
Dendrobium Jan Orinstein 'Red and White' by
hawaiiansunshine, on Flickr