It was Dendrobium abbreviatum in the past... but the whole group was given genus staus..
Ramon, I am not sure what you meant to say, but I don't think yours is Diplocaulobium phalangillum. Based on the photos, I think yours is Diplocaulobium abbreviatum, which "It was Dendrobium abbreviatum". Dip. abbreviatum is not a syn of Dip. phalangillum.