We hope you have enjoyed the SRGC Forum. You can make a Paypal donation to the SRGC by clicking the above button

Author Topic: two fine Asclepiadaceae  (Read 617 times)

Hans J

  • Gardener and Gourmet
  • Hero Member
  • *****
  • Posts: 4155
  • Country: de
two fine Asclepiadaceae
« on: July 08, 2023, 10:17:03 AM »
Today I will show you new plants from my sowing from this year

First is Philibertia gracilis ( received under this name ) but I suppose it is Philibertia gilliesii
« Last Edit: July 10, 2023, 01:52:05 PM by Hans J »
"The bigger the roof damage, the better the view"(Alexandra Potter)

Hans J

  • Gardener and Gourmet
  • Hero Member
  • *****
  • Posts: 4155
  • Country: de
Re: two fine Asclepiadaceae
« Reply #1 on: July 08, 2023, 10:22:55 AM »
The next is Oxypetalum coerulum ( former name is Tweedia )



Have fun  8)
Hans
« Last Edit: July 10, 2023, 01:52:28 PM by Hans J »
"The bigger the roof damage, the better the view"(Alexandra Potter)

Gail

  • Hero Member
  • *****
  • Posts: 1652
  • Country: gb
  • So don't forget my friend to smell the flowers
Re: two fine Apocynaceae
« Reply #2 on: July 08, 2023, 08:56:50 PM »
They are lovely Hans. I've grown Tweedia before but never seen Philibertia. Impressive from this year's sowing!
Gail Harland
Norfolk, England

Hans J

  • Gardener and Gourmet
  • Hero Member
  • *****
  • Posts: 4155
  • Country: de
Re: two fine Asclepiadaceae
« Reply #3 on: July 08, 2023, 09:04:58 PM »
Thank you Gail :)

I have made in this year a try with different Asclepiadaceae seeds
This both was really easy ...but other are more difficult
Vincetoxicum : no germination
Periploca : only one seedlings ...and it grows very slow
Gomphocarpus : good germination ...but until now no flowers

...and also I have sowing in this year many Ipomoea seeds !
« Last Edit: July 10, 2023, 01:53:07 PM by Hans J »
"The bigger the roof damage, the better the view"(Alexandra Potter)

Hans J

  • Gardener and Gourmet
  • Hero Member
  • *****
  • Posts: 4155
  • Country: de
Re: two fine Asclepiadaceae
« Reply #4 on: July 10, 2023, 01:57:34 PM »
Sorry for confusion ...but I have just changed the name of this topic
This morning wrote me a botanist friend that the correct name is Asclepiadaceae

Good news ...I have seen today that both plants build fruits

Hans  8)
"The bigger the roof damage, the better the view"(Alexandra Potter)

Hans J

  • Gardener and Gourmet
  • Hero Member
  • *****
  • Posts: 4155
  • Country: de
Re: two fine Asclepiadaceae
« Reply #5 on: July 11, 2023, 10:06:48 AM »
Now something interesting about the flowers - this info was written to me yesterday by a botanist friend - he also gave me permission to post this text here
 
"Yes, all Asclepiadaceae have clamp traps, even the Ceropegia, which have both: a cup trap and then inside again the clamp trap. I think it is the only plant family with the orchids that transmits pollinia, which are whole packets of pollen. The foot or proboscis of an insect gets into a rail that is open at the bottom and soon narrows at the top. You can see the rail even in your photo in the flower (there are 5 of them). The foot has to be pulled out of the rail at the top. There at the upper end sit the two pollen packets, which are clamped to the insect's leg with a clamping device (like the jaws of a bicycle handbrake). When the insect has the correct size, it pulls the pollen packets together with the clamp out of the holders and flies around with them. The rail is at the same time the stigma and the next time the insect visits the flower, a packet remains stuck in the rail. This can be observed beautifully with Asclepias curassavica, where bees or butterflies get the pollen packets. Especially nasty is Araujia, which is probably aimed at larger moths and holds the local ones by the proboscis, because they are too weak to tear themselves loose with the clamp body. If everything works, you don't get the clamping, only if the insects are too weak."

Translated withDeepL

I hope the translation is correct ...Maggi could you please look ?
And maybe change something !

Thanks Hans
"The bigger the roof damage, the better the view"(Alexandra Potter)

Hans J

  • Gardener and Gourmet
  • Hero Member
  • *****
  • Posts: 4155
  • Country: de
Re: two fine Asclepiadaceae
« Reply #6 on: July 13, 2023, 09:44:15 AM »
today pictures from the fruits :
"The bigger the roof damage, the better the view"(Alexandra Potter)

 


Scottish Rock Garden Club is a Charity registered with Scottish Charity Regulator (OSCR): SC000942
SimplePortal 2.3.5 © 2008-2012, SimplePortal