Photos to differentiate Bulb. jacobsonii and their relation

[wilson]

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.

Bulb. jacobsonii

[wilson]

Bulb. plumatum

[wilson]

Bulb. habrotium[/QUOTE]

[wilson]

Bulb. thiurum ( used to be called B.plumatum "yellow" )

Can you find out of this four species differentiate ?

[SueK]

Wilson

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.

Sue

[Mike O'C]

Originally Posted by SueK

Wilson

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.

Sue

Sue, when I went to Hong Kong in 1979 there was even an orchid society there. I think thta Dr Sandy Lee was the chairman/president and Bernard Coultes was the secretary. I even went to one of their meetings and one of their members and her husband kindly picked me up in their Rolls Royce from the Park Hotel where I was staying and took me to the races at Sha Tin racecourse. That night they took me to dinner and the next morning after finishing a bottle of Mou Tai (still got the empty as a souveneir! ) Bernard took me and showed me Paphiopedilum purpuratum growing in the wild. But 1979 was a l ong time ago and memory fades so I may have spelt the names wrong! But yes there are people in Hong Kong who grow orchids.

[taipan]

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 !!)

[taipan]

Wilson
There was a small book published recently (Orchids of Indonesia) & the author has B.jacobsonii as a synonym of B.plumatum. Also Seidenfadden "Orchids of Peninsular Malaysia " does not mention B.plumatum or jacobsonii in his reference.

SueK
There used to be some nurseries in HK before the hand over to China - dont know if they are still operating or not.

[Mike O'C]

Originally Posted by taipan

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 and Taipan I am enjoying the meaningful dialogue about Bulbophyllums. Please keep it up even if we do not always agree.
Wilson I find it hard to identify/differentiate from photographs. If I had those species (like you seem to have - you lucky fellow, I envy you your plants) I would photogrpah, measure, dissect them and make sketches of the various parts for my records. By the way I amnot a botanist but an orchid lover who is observant!
Wilso please tell me the name of the book, date of publication, publisher and the ISBN number so that I can see if I can get a copy for my library. Thanks in advance.
Oh! and Wilson please keep posting pictures of your Bulbophyllums. Much appreciated.

[Mike O'C]

Originally Posted by taipan

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

Yes, Taipan that is the photo that I was referring to. I think that there are similarities in it to Bulbophyllums lobbii, facetum and sumatrana. I certainly would agree with you that it probably belongs in the Bulbophyllum lobbii complex. I was about to go for an afternoon nap/snooze but now I think I will research my books to see if I can find anything! I got it wrong! I thought Wilson mentioned the book on Indonesian orchids but it was you/ Please would you send me the details that I asked Wilson for. Thanks