152 FLORA OF WASHINGTON AND VICINITY. 



90. Viola striata, Ait. 



91. Viola pubescens, Alt. 



92. Viola pubescens, Ait., var. eriocarpa, Nutt. 



93. Viola glabella, Nutt. 



94. Viola tricolor, L., var. arvensis, Ging. 



95. lonidium concolor, Benth. & Hook. 



96. Polygala incamata, L. 



97. Polygala sanguinea, L. 



98. Polygala fastigiata, Nutt. 



99. Polygala Curtissii, Gray. 



100. Polygala ambigua, Nutt. 



101. Polygala polygama, Walt. 



102. Polygala Senega, L. 



103. Dianthus Armcria, L. 



104. Saponaria officinalis, L. 



105. Silene stellata, Ait. 



106. Silene nivea, DC. 



107. Silene Pennsylvanica, Michx. 



108. Silene Armeria, L. 



109. Silene antirrhina, L. 



110. Lychnis Githago, Lam. 



111. Cerastium viscosum, L. 



112. Cerastium vulgatum, L. 



113. Cerastium nutans, Raf. 



