The value of Kalm's specimens as nomenclatural types of Linnaean species of grasses is evaluated with special reference to a number of species previously typified. A number of these species are retypified according to the "Guide for determination of types" given in the International Code of Nomenclature. As a result of this study one new combination:Trichachne nutans(L.) Baum is made and several other changes in nomenclature are suggested.
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