FOOTNOTES:
[1] In most flowers the corolla is the conspicuous portion of the perianth, and is composed of united or separate petals, as the case may be. In some flowers the corolla is absent, and the calyx is the conspicuous portion.
[2] About 30 species of Potamogeton occur in Michigan, among which the most conspicuous is Potamogeton natans, with elliptical floating leaves. For the identification of the species the Manual must be used.
Transcriber's Notes:
Page xlv: Changed lobel to lobed
Page 10: Changed ocntains to contains
Page 39: Changed second 38a to 38b
Page 89: Changed second 4a to 4b
Page 94: Changed augustifolium to angustifolium
Page 108: Changed second 1a to 1b
Page 109: Changed --21. to --20.
Page 122: Changed (springi) to (spring)
Page 130: Changed autum to autumn
Page 146: Changed Eveyrlasting, Pearly to Everlasting, Pearly