lily germ pics

David Ehrlich
Fri, 15 Mar 2013 18:11:31 PDT
Jim, I know that some Lilies have hypogeal and some epigeal germination.  I have 
only once germinated a Lily seed.  Upon germination, it pushed the middle of 
the cotyledon above ground, doubled over.  Within a day or two, it unbent, 
bringing the seed coat at its tip up and waving it in the air.  I would call 
that epigeal germination.  On the other hand, Sisyrinchium (or the ones I've 
germinated) also begin with a doubled over cotyledon above ground, but in this 
case, both the hypocotyl end and the suctorial tip remain below ground; the 
cotyledon never unbends.  I have always considered that to be hypogeal 
germination, despite the fact that the first above ground greenery is the 
cotyledon -- in particular, the cotyledon tip with attached seed coat never goes 
above ground.

David E.

From: Jim McKenney <>
To: Pacific Bulb Society <>
Sent: Fri, March 15, 2013 4:56:52 AM
Subject: Re: [pbs] lily germ pics

Germination in Lilium canadense and L. michiganense is hypogeal, in L. 
philadelphicum it's epigeal. 

L.canadense and L. michiganense do not have above ground cotyledons, L. 
philadelphicum does. In L. canadense and L. michiganense the first green you see 
above ground is the first true leaf. 

Jim McKenney

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