. Bulletin - Massachusetts Agricultural Experiment Station. Agriculture -- Massachusetts. 36 characteristics is likely to be confounded with the true pigweeds, which, however, are Amaranthus, and not Chenopodium. The seed as found is double convex in shape, and its diameter laterally varies between .75— In color it is black and. d Figure 29 Fig. 29. Lambs-Quarters. shiny. Very often the seed is found encased in the hull or cover in which it grows. It is then gray in color and of the same gen- eral shape as the seed itself. By rubbing between the fingers the covering may be removed and
. Bulletin - Massachusetts Agricultural Experiment Station. Agriculture -- Massachusetts. 36 characteristics is likely to be confounded with the true pigweeds, which, however, are Amaranthus, and not Chenopodium. The seed as found is double convex in shape, and its diameter laterally varies between .75— In color it is black and. d Figure 29 Fig. 29. Lambs-Quarters. shiny. Very often the seed is found encased in the hull or cover in which it grows. It is then gray in color and of the same gen- eral shape as the seed itself. By rubbing between the fingers the covering may be removed and the shiny black seed exposed. The outer seedcoats when cleared and examined under the mi- croscope are seen to be made up of large, roughly rectangular irregular cells which vary in diameter from 25—75ai and which are covered with minute rough projections similar to those of rough pigs\'eed. The size and rectangular shape of the cells distinguish this seed from species of Amaranthus. LADIES' THUMB, SMARTWEED. {Polygonum Persicaria, L.) This seed is often found in feeds and more especially in chick feeds, and is much like a flattened buckwheat seed having two. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Massachusetts Agricultural Experiment Station. Amherst, : Massachusetts Agricultural Experiment Station, 1907-1974
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