Typification of Six Names Published by Stéphen Sommier from Siberia
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We propose the typification of six names validly published by Stéphen Sommier and based on specimens collected during his trip to Siberia along the Ob River in 1880. The names are Polygonum aviculare var. rostratum Sommier, Pyrola rotundifolia var. marginata Sommier, Stachys palustris var. macrantha Sommier, Stellaria graminea f. diffusa Sommier, Thalictrum flavum var. laxum Sommier and Thalictrum polygynum Sommier. The proposed lectotypes are deposited at FI.