Is this stem strange?

The seeds were given to me as Alamo Vine. I see a double stem and was wondering if this is right. Both seeds emerged that way.

The cotyledon stems are typical of Merremia dissecta...hope that bit of shell sloughs off before it hardens and damages the embryonic leaves...

Merremia dissecta...most of the hypocotyl (the stem below the jucnture of the cotyledons) remains below the surface of the growing medium...or with just a short bit above the ground...
http://pics.davesgarden.com/pics/RON_CONVOLVULACEAE_1153681724_12.jpg

The sprouts of Ipomoea leptophylla
http://davesgarden.com/pf/showimage/100620/
and Ipomoea longifolia
http://davesgarden.com/forums/t/584162/
have a very similar appearence to the Merremia dissecta as per the sprout stems,although the cotyledon shapes are somewhat different...

Hope that helps...

TTY,...

Ron

Ronnie, The pandurata seed I planted this past summer sent up multiple stems.

Jackie

Thank you Ron it does help...
Jackie I never saw that before!!

Ronnie, I just barely covered the seed when I planted it. Very surprised when I started watching for germination and saw not one but 3 tiny stems. Each one had a tiny leaf. The silly thing just sat
there, sulking, guess it didn't like the spot. It didn't grow and as soon as the cool weather
arrived, it dissapeared below ground. Hope it returns in the spring
I had another glory that sent up multiple stems but can't remember which one. Had to be one that I lost, maybe Merrimea dissecta as Ron stated above.

Jackie

Here's the link for the thread where Stacey got 3 cotyledons on one opf her plants
http://davesgarden.com/forums/t/481611/

A seed produces the primary root known as the radicle and the embryonic stem is known as the hypocotyl...the 'stems' of the cotyledons are considered to be part of the hypocotyl in dicots...

The vast majority of all Morning Glories will produce only 2 cotyledons,but some atypical seeds may produce more than 2...when the base of the stems of the cotyledons remain below the ground >it may present the 'illusion' that the seed is producing 'multiple' stems >when in point of fact the number of cotyledon hypocotyl stems is the same as in other MG's where the base of the cotyledon stems are clearly above the ground...

When more than 1 seed germinates in extremely close proximity to another seed >this may also present the illusion that a seed is producing multiple stems...

Take a very close look and you may see what I'm referring to...

Enjoy the 'mysteries'....

TTY,..

Ron

P.S. - The cotyledons will often fall off relatively soon after the initial nutrient reserve contained within them is absorbed by the growing plant >but the cotyledons may start to photosynthesize and continue to remain on the plant for a year or more...
I recommend allowing the cotyledons to remain on the plant as long as they are naturally inclined to do so and not to manually remove them...cotyledons have been found to contain little known helpful substances and structures that are not found anywhere(!) else in the entire plant...believe it or not...

Ron, thanx for the explanation. It just didn't sink in the first time.

Jackie