Fig 130. [Cheeses. Running Mallow. Malva rotundifolia] L.

Cheeses. Running Mallow. Malva rotundifolia L. Flowers white; cluster of 12–15 fruits flattened, circular with depression on each side, ovary circular, wedge-shaped, very slightly roughened, with radiating ridges; seeds light brown, nearly smooth, flattened, 1.4–1.7 mm. in diameter, wedge shaped, nearly circular with a small notch on the thin edge. Naturalized from Europe.

Fig 131. [Whorled Mallow. Malva verticillata.] L.

Whorled Mallow. Malva verticillata. L. Flowers white; cluster of 10–12 fruits flattened, circular with depression on each side, carpel circular, wedge-shaped, about three rows of irregular shallow pits on the wide edge, radiating ridges on each flat side; seeds light brown, nearly smooth, flattened, wedge-shaped, ovate or nearly circular, 1.5–1.7 mm. long, with a small notch on the thin edge. Introduced from the west.

Fig 132. [Prickly Sida. Sida spinosa] L.

Prickly Sida. Sida spinosa L. Seed smooth, dull brown or reddish brown, having one side round and two sides flat or more or less concave, all edges obtuse while lying on one flat side, broadly ovoid, with one side nearly straight, scar at the larger end in the midst of a slight depression, 1.5–1.8 mm. long. Not yet common in Michigan. Introduced from the tropics.