Thanks for the Infos! I never saw plants like yours that are Borneo Origin. i know that Paph linii (bullenianum var. linii) occurs at Bako NP Sarawak. But looks completly different. Plants which i grew in my old collection as bullenianum also looked very different. Thats why i am confused.The lineage are plants from Borneo. The Japanese do not make mistakes... usually lol... esp if they consider it valuable.
But I will do my research as I'm curious about the differentiation of the appletonianum complex.