ID Help for Dendrobium speciosum

[Undergrounder]

good work ipv!

smweaver: great little plant you've got, i think i might try and track down a var pedunculatum or a hybrid with lots of pedunculatum in it.. Most specs are too big..

[Mahon]

Cneos,

The second pictured Dendrobium speciosum plant looks like it could be Dendrobium xdelicatum, which is the natural hybrid between Den. kingianum and Den. tarberi (aka Den. speciosum var. hillii). The flowers are reminiscent of Den. kingianum, with slightly sparser flowering on the inflorescence.

Also, a few of the Ausie Dendrobiums are now classified under Thelychiton...

-Pat

[cneos]

Originally Posted by Mahon

Cneos,

The second pictured Dendrobium speciosum plant looks like it could be Dendrobium xdelicatum, which is the natural hybrid between Den. kingianum and Den. tarberi (aka Den. speciosum var. hillii). The flowers are reminiscent of Den. kingianum, with slightly sparser flowering on the inflorescence.

Also, a few of the Ausie Dendrobiums are now classified under Thelychiton...

-Pat

Thanks for the suggestion. The second pictured plant has been taxonomically verifed as Dendrobium speciosum. This was its first blooming.

[cneos]

Originally Posted by cneos

Thanks for the suggestion. The second pictured plant has been taxonomically verifed as Dendrobium speciosum. This was its first blooming.

PS ... it's a seedling from a selfing of plant in photo #1

[Gazpacho]

I have a few pics of var. pedunculatum... both junior and flowering size.... attached. A tell tale sign is a sort of purplish tinge to new growth, although that feature also applies to var. blackdownense.

Pedunculatum has been used extensively to try and reduce the size of the more floweriferous (sp) variations. For example, intervariety of pedunculatum x grandiforum... or intervariety of pedunculatum x 'daylight moon' or something.

The plant in question looks like a juvenile dendrobium speciosum var. speciosum to me... but wait until it flowers.... e.g. similar to my last picture of my juvenile dendrobium speciosum var. speciosum 'windermere' x 'two up'. Though the growing habit and appearance of bulbs and leaves comes down a lot to culture.

The beautiful flowers indicated by Cneos look like a decent example of dendrobium speciosum var. hillii, typically light cream, legs and arms close, drooping habit.... though the tell tale indicator would be lots of airial roots. The flowers on the second photo do look, for all the world, like the natural hybrid dendrobium delicatum. Rather than a selfing, maybe some pollen from a kingianum got to it first??

Gazza

[Gazpacho]

Dendrobium Speciosum var pedunculatum 'Herberton Gold' x grandiflorum 'Best 2005'. The idea here is to make this grandiflorum flower earlier with more upright racemes and in bonsai format.

[Gazpacho]

Picking the different variations form juvenile plants is not easy. Both of these are true var. speciosum, yet they look quite different from each other.

[Kerry78]

I'm also in the same boat I got 2x Plants
Recently labelled Dendrobium Speciosum
The vender had attached a pic of a white flower
Plant which made me wonder if it's a Curvicaule or a Penducatum I've looked around the web found that
Curvicaule are likely to have 2-3 leaves on a bulb
And Peducatum have a purplish maroon cane!

But other then that I'm lost aswell I've asked the vender
For any other info on them but nothing !

It's a plant apparently from 2 years blooming size!

[Orchidsoutdoors]

Until it flowers, it's pointless to speculate, and even then with so many intervarietal variants around, you may never know. Most juvenile speciosums are fairly similar.

[Kerry78]

That's prob what I expected to hear lol
Unless you purchase a plant from a Australian
Vender your in for a long wait with the European
Ones 👎😋

I potted it up in Clay balls anyway I assumed it being a Rock lily It would like that type of medium I do think there lovely plants if they flower for you but also one heck of a headache to get your hands on I myself have been looking for months for a Speciosum lol