Coelogyne ovalis
Submitted by Horst on Sun, 28/06/2009 - 23:01
Score: 5.0, Votes: 1
Coelogyne ovalis or fimbriata??
I need help on this one.
This plant was rescued from an abandoned orchid collection
The label is lost and we don't have any other record.
Vote Result
Score: 5.0, Votes: 1
Coelogyne
Hi Horst, this one is C. ovalis. Flowers about 3-4cm across.
The epithet refers to the oval shape of the mid-lobe of the lip of the flowers.
bernabu
Coelogyne ovalis
Thank you Bernard
not convinced gents
HI guys,
I am not convinced this one is either of the two species mentioned yet.
The photo shown here has quite different petals than either C. ovalis or C. fimbriata. I think the lip is 'possibly' more like C. fimbriata but the petals issue also needs to be considered I believe. A hybrid maybe?
Compare to the series under each of these
Coelogyne ovalis http://www.orchidsonline.com.au/node/3109
Coelogyne fimbriata http://www.orchidsonline.com.au/node/1364
Regards wellsy
Coelogyne
Both these species belong to section Fuliginosea within Coelogyne. So it's no surprise that these two species are often confusing.
Perhaps it's better to give Dudley Claytons keys to these two species.
C.fimbriata, Lip midlobe orbicular, fimbriate, callus of 3 Keels, median keel virtually a brown nerve, lateral keels terminating at the tip of the mid-lobe, initially diverge then converge at the tip of the mid-lobe. Sepals and petal pale yellow-green, lip whitish or pale yellow marked with brown. (Inflorescence with slender and erect peduncle).
C.ovalis, Lip with base truncated, with 3 keels, lateral keels extending from the base of the lip to 0.5cm from the tip of the mid-lobe; medium keel near base of the lip only, lip base and column base brownish. Flowers light brown with greenish tinge.
bernabu
Immature growth
Horst is the plant flowering from an immature growth? From the shape and color of the flower I think this is lawrenceana x ovalis.
Coelogyne
migocab, C.lawrenceana is from a different section (Lawrenceanae) and has quite a distinctive shape, which I am sure would have been passed on to any cross.
C.lawrenceana, C. ovalis and C. fimbriata are all hysteranthous, that is, when the inflorescence and flower develops on the top of a fully developed psuedobulb with a fully developed leaf or leaves.
There are 3 other stages, or types of inflorescence development in the Genus Coelogyne.
Heteranthus: when the vegatative shoot from which the inflorescence emerges never developes a leaf or leaves and where the terminal internode of this growth never enlarges to form a psuedobulb. (example C.cristata).
Proteranthus: when the inflorescence develops on top of a vegatative shoot of which the leaf or leaves and the terminal internode are not yet developed.(example. C.mayeriana).
Synanthous: when the inflorescence develops on the top of a vegatative shoot of which the terminal internode is not developed, but the leaf or leaves are developing simultaneously. (example C.calcarata).
If indeed Horst's image is a cross, we should be looking elsewhere for the names involved in the cross.
bernabu
Hysteranthus in Coelogyne
Hi all,
I learned these terms from bernabu!
Do we have a term for a flower stem which emerges/buds from the base of the pseudobulb? [Dendrobium]
I will post a picture of one of my Den. Gatton Sunray to illustrate this question!
TPLV
Whole plant.
Please see the attached image with the whole plant. (IMG_5181.jpg).
Coelogyne
Bern,
From first glance I thought that the plant was flowering from an immature growth which would have been influenced by another species, until a second photo was submitted. Thanx for the extra information.
In my opinion this is not Coel. ovalis nor fimbriata. The rhizome if very short, bulbs are fat and the sepals/petals are long and wavy. So this is indeed a hybrid
Only species
Migocab,
Only one more information for you.
The person from which I took over the abandoned plants collected only species.
He had not one hybrid in his collection. Although he could have unknowingly bought some hybrid seedlings from a vendor who wasn't honest.
Detective work
Thanks Horst. I might do some detective work and could take a while before there's any outcome.
clarification
Horst, as we have seen previously when claryfying species in the genus Coelogyne, so much depends on identifying the lip characteristics, (more so than in other genera).
If your plant is still in flower, is it possible to take a closer image of the lip, front on, and a side view showing the raised callus ?.
bernabu
Tropical storm.
Couldn't take new images. We had a severe tropical storm last weekend.
The flower got damaged. Guess we have to wait an other year or two.
whole plant
Thanks for posting the picture of the whole plant Horst.
Along with it Ian it seems...For me the plant form confirms our suspicions that it is not either of the two proposed at the top of this post.
Whether it's a species or hybrid I'm sure we'll get to the bottom of that soon enough.
Maybe when the plant has grown on a bit and produces a good size spike we will have better luck.
Regards wellsy
Coelogyne
Just received a reply from a very good friend, who has the premier collection of Coelogyne species in the UK.
He believes that this image is a hybrid with either ovalis or fimbriata as one of he parents. He will get back to me if he can find any further info.
So wellsy and migocab, you are both right.
bernabu