Bulbophyllum sumatranum Garay 1996

Bulbophyllum lobbii is a widely distributed taxon from the very horticulturally interesting section Sestochilus which has many large flowering species. Its found throughout SE Asia and New Guinea and due to this wide geographical range, many forms exist.

In 1996, Dr Leslie Garay and other experts published this new species from Sumatra - Bulbophyllum sumatranum, which many scholars from a different camp considered to be simply a variation of Bulbophyllum lobbii (var. breviflorum to be exact) described some 88 years earlier. Personally. I think it just looked like a smaller version of lobbii with very red lateral sepals.

You can compare this with B. claptonense - another delectable, if debatable, species and make your own conclusion.

Ref: Garay et al, Lindleyana 11: 230 (1996)