Seeds of the United States noxious and common weeds in the Convolvulaceae, excluding the genus Cuscuta

Publication Type:Journal Article
Year of Publication:1969
Authors:Gunn
Journal:Proceedings of the Association of Official Seed Analysts of North America
Volume:59
Pagination:101-115
Keywords:Convolvulus, GS, hilum, Ipomoea, Jacquemontia, Merremia, seed
Abstract:

The seeds of twenty weedy species from four genera of the Convolvulaceae are keyed, described, and illustrated. Two types of hila are defined: 1) the ipomoea-type hilum is large, nearly circular in outline, usually emarginate at its base, and usually surrounded by a ridge and 2) the convolvulus-type hilum is small, wider than long, not emarginate, and not surrounded by a ridge.

Alternate Journal:Proc. Assoc. Off. Seed Analysts N. Amer.
Fri, 2011-05-20 10:25 -- Esmond
http://www.gravatar.com/avatar/23fae7ceaa50619ce7ef9c7d4922f7b2.jpg?d=https%3A//convolvulaceae.myspecies.info/sites/all/modules/contrib/gravatar/avatar.png&s=100&r=G
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith