Publisher's Synopsis
Excerpt from Memoirs of the Torrey Botanical Club, Vol. 1: May, 1889-May, 1890
Two germinating plantlets have been figured in Plate V, Figs. 6 and 7, and Show the presence of a distinct primary root (r), which already forms several lateral branches in this very early stage. The hypocotyl is frequently very short, and there is a wreath of rather long root-hairs at the base, where it passes into the root. The cotyledons, which are above ground, are long-petioled, with the blade varying from ovate and acute to broadly ovate and obtuse. The first leaf after the cotyledons has mostly the same form as the leaves that develop later. It is decompound, with the divi sions cordate, obcordate or roundish. The primary root is not of long persistence, and is replaced by several sec ondary ones, developed from the base Of the stem, which can be seen on an Older plant (fig.
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