Abstract
Records are cited for the following: Charophycophyta-Characeae: Chara contraria A. Br. (Maricopa Co.), C. zeylandica Klein (with preceding), C. globularis Thuill. (Apache Co., Navajo Co.), Nitella sp. Angiospermae-Najadaceae: Najas marina L. (Maricopa Co.), Hydrocharitaceae: Vallisneria americana Michx. (Maricopa Co., new to Arizona). Gentianaceae: Menyanthes trifoliata L. (Apache Co.; new to Arizona). Recent Arizona plant collections have revealed the existence of two species not previously recorded for the state, and noteworthy range extensions of several others. Specimens of the following are in the herbarium of Arizona State College, Tempe. Collections were made by the writer unless otherwise stated.
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