Dendrobium goldschmidtianum
 

Den goldschmidtianum, one of the parents of Den x usitae. I read somewhere that the ones found in nature are much less pink, sometimes white with some faded pink. Mine's a pretty intense fuchsia... almost unnaturally so!

Thankfully it bloomed before Den usitae faded and I could compare the colors side by side. I think I like Den usitae more!

Both lovely though!

Mine (actually, it's labeled Den. miyakei... Kew considers them synonymous, I'm not so sure) is intense reddish-purple (guess that's "fuchsia". The reason I wonder if they're really the same species is that mine grows quite cool, and is compact. Den. goldschmidtianum tends to be tall, and more of a warm grower. But the flowers I have seen of the latter look pretty much the same, very intense color. So are they different species,or different populations of the same species? Above my pay grade to determine...

That's a very good point. I've noticed the discrepancies among so called "Den. goldschmidtianum" and "Den. miyakei"...

According to the original article that declared the two as the same:

(taken from Significant collections of Orchidaceae conserved in Herbarium Hamburgense (HBG) | SpringerLink)

"When describing D. miyakei, Schlechter
was unable to locate specimens of D. goldschmidtianum at Berlin for comparison. Examination of the holotype of D. goldschmidtianum, which includes a photograph
of a cultivated plant in flower, shows the
two concepts to be identical. Unfortunately,
this requires changing the name of D. miyakei, a minor horticultural species. Elizabeth Dauncey (K), who is currently monographing Dendrobium sect. Pedilonum,
agrees with this finding (pers. comm., 1994). "

Apparently it is more detailed in the article below, but I wasn't able to find a copy online. "Typification of Schlechter's East Asian Orchidaceae held at the Herbarium"

According to the Taiwan Biodiversity Information Facility (It's open access... so... I would take it with a grain of salt) that Den. goldschmitianum was originally identified in the Philippines while Den. Miyakei was identified in Taiwan. They mention that the Philippines population is taller and less purple.

So... the answer is... who knows... but seems like there are two separate populations of "Den goldschmidtianum" out there. Mine looks like Den miyakei... glad it's compact!

In Taiwan, Den . miyakei is only found in an island very near the Philippines. In the island, some orchids are also found, such as Vanda lamellata, Pahl, aphrodite and Phal. equestris...
Blooms and plants of these orchids were somewhat different from those found in our neighbor counteris.

As for Den. miyakei, i think is is equel to Den. goldschmidtianum. But those found in Taiwan had deeper colored blooms and therefore is more popular.