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Wilson & Mike
There is a bulbophyllum flammuliferum ( spelling ? ) but this plant is a different species altogether. The only names for B.plumatum are ( to my knowledge ) B.plumatum; B.habrotinum & B.jacobsonii. I believe some people say they are different species whilst others believe them to be a synonym. There is a yellow flowered species called Bulb.thirum ( used to be called B.plumatum "yellow" )
BTW Wilson the B.sp aureum looks like B.mearnsii or B.carunculatum
Wilson & Mike
There is a bulbophyllum flammuliferum ( spelling ? ) but this plant is a different species altogether. The only names for B.plumatum are ( to my knowledge ) B.plumatum; B.habrotinum & B.jacobsonii. I believe some people say they are different species whilst others believe them to be a synonym. There is a yellow flowered species called Bulb.thirum ( used to be called B.plumatum "yellow" )
BTW Wilson the B.sp aureum looks like B.mearnsii or B.carunculatum
Thanks Taipan. I did think when I flowered my plant that the name (Bulbophyllum flamulum) was wrong and that it was Bulbophyllum plumatum which I knew had as a synonym Bulbophyllum jacobsonii but I had not heard of Bulbophyllum habrotinum. I agree that one of the yellow orchids that Wilson showed looked like Bulbophyllum carunculatum but it lacked the blackish colouring of the lip. Possibly a yellow form of the species. It certainly is in the same section as Bulbophyllum carunculatum. One of the others that he showed a photo of looked like a hybrid to me (possibly a Bulbophyllum sumatrana or facetum hybrid with Bulbophyllum lobbii). I cannot remember which photo it was but if you look you will recognise the one that I am talking about. Have a look and tell us what you think. Thanks
Hello Mike
I checked to photo's & I think the one you are referring to might be labelled as B.palawanense. I checked the name on IPNI but does not come up. Yes it is definatly in the B.lobbii "complex" & probably a species in it's own right - dont think it's a hybrid though. I have heard the name "palawanense" thrown around.He probably bought it as a "cultivated plant" - read between the lines
Hello ! taipan & Mike,
Thanks for you’re discuss about Synonyms of Rhytionanthos (Bulb.).
I don’t unstand why the Bulb. jacobsonii will subsume into Bulb. plumatum.
But reverse into Bulb. plumatum was very similar to Bulb. habrotium……….
So, I'm post some photo to differentiate Bulb. jacobsonii and their relation.
Wilson
I dont have access to the original descriptions of these. They were decscribed in the following years:
B.plumatum 1915 ( P/pinnes ?? )
B.jacobsonii 1935 Sumatra ??
B.habrotinum 1994 Borneo ( plants found in )
B.thiurum 2005 malaya (plants found in )
You can get the details of IPNI
Wilson plse note the correct spelling of B.thiurum ( not thirum !!)
Your bulbophyllums are great. Very very appealing. I'm sure everyone is drooling and they will be running all around the place trying to get hold of some. Yours all look so healthy. I guess you have the right climate for them. I am very interested in bulbophyllums but sourcing them is not always easy and I think you have some unusual varieties in your collection. Where did you buy them in Hong Kong? Surely you don't have orchid nurseries there. I wouldn't think there would be too many people in H.K. who would be into orchids.
! taipan & Mike,
Yours all look so healthy. I guess you have the right climate for them. I am very interested in bulbophyllums but sourcing them is not always easy and I think you have some unusual varieties in your collection. Where did you buy them in Hong Kong? Surely you don't have orchid nurseries there. I wouldn't think there would be too many people in H.K. who would be into orchids. 
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