Saturday, February 16, 2013

Ipomoea nil seed

Ipomoea nil seed by Gerris2
Ipomoea nil seed, a photo by Gerris2 on Flickr.

Via Flickr:
Note the hilum, which is the semicircular structure. This location is where the seed root or radicle will emerge during germination. Care must be taken not to damage this area when nicking the seed coat.