Cynanchum callialatum

Cynanchum callialata: Mulshi near Pune: I found this Asclepiadaceae climber in Sep 2012 on road towards Lavasa.
After carefully observing the pictures I think this is Cynanchum callialata.
Ref FOS By Shrikantji.
Tall climber with opposite leaves. Flowers tiny(Less than a cm) in umbellate cymes.
It was a surprise for me when members visiting VOF were showing different Cynanchum species. I could find this one from Western ghats

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Flora Picture of The Year 2012 : Dr. Satish Phadke:
Cyananchum callialatum
I get fascinated by the radial symmetry and the geometry present in flowers of most of the species of Asclepiadaceae.
It was a joy for me when I came across this species in Mulshi area on way to Lavasa .
It is a climber with tiny flowers of less than a cm.
I could find the ID from the book Flowers of Sahyadri. I posted the pictures on the group when VOF week was going on in full swing.
On searching the Efloraofindia I was surprised to know that this species was not shared by anybody so far.
I was disappointed that nobody took notice of the post.
Presenting my Flora Picture of The Year 2013.
Cyananchum callialatum

Its very beautiful flora pic of d year n me glad that u found this beauty near Pune area, thanks fo sharing such innovative plant 🙂

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Ascalpidiace or Apocynace id from Bangladesh _sm_3002 : 4 posts by 2 authors. Attachments (1) – 2 Mb.
Habitat : sandy bush

Location : Saint Martin Island, Bangladesh

Flowering : November

Photo taken : Nov, 2018

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Apocynaceae?

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Pl. check comparative images at Apocynaceae

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Closest I can reach is some Cynanchum species as per comparative images.

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Agreed, …

But, species level identification is difficult. because of data conflict !!! for example –

1. POWO
2. http://flora-peninsula-indica.ces.iisc.ac.in/herbsheet.php?id=1254&cat=7
3. https://sites.google.com/site/efloraofindia/species/a—l/a/apocynaceae/cynanchum/cynanchum-callialatum
4. Plant illustrations

So, please consult local flora guide.

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I will go with Cynanchum callialatum

Leaves appears to be quite variable as per GBIF specimens from India.

CoL treats Cynanchum tunicatum (Retz.) Alston as a syn. of Vincetoxicum callialatum (Buchanan-Hamilton ex Wight) Kuntze (syn: Cynanchum callialatum Buch.-Ham. ex Wight)
However, POWO treats them as different with only, Cynanchum callialatum Buch.-Ham. ex Wight having distribution in Bangladesh. 

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Thanks for the update, Sir ji.
However, there is another species in Bangladesh, in which leaves are more cordate – http://apps.kew.org/herbcat/getImage.do?imageBarcode=K000894620

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Cirsium wallichii var. nepalensis (DC.) Karthik. & Moorthy: 2 images.
Location : Aizawl, Mizoram

Cynanchum callialatum Buch.-Ham. ex Wight

What are the species reported from your area?

Sorry ! C.calliatum is not yet reported in Mizoram. Only Cynachum wallichii is recorded in The Flora of Mizoram.

Flower peduncle, pedicles and vein arrangement of leaves of Cynanchum wallichii look different from posted images as per GBIF specimens (one, two, three).

Since the border is adjoined to Myanmar, could it be a new sp. for Mizo ?

On checking all th enlisted species listed in Flora of India, in POWO, the following may be available in the region:
Cynanchum corymbosum Wight
Vincetoxicum deltoideum Kuntze
Cynanchum wallichii Wight

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