. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. Genus 82. THISTLE FAMILY. 509 2. Tetraneuris stenophylla Rydb. Narrow- leaved Tetraneuris. Fig. 4538. Tetraneuris stenophylla Rydb. Bull. Torr. Club 33: 155. 1906. Perennial with a branched caudex, the branches often 3i' long, the upper portion covered with the scarious bases of old leaves. Bases of the leaves dilated, sparingly silky-villous; blades narrowly l
. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. Genus 82. THISTLE FAMILY. 509 2. Tetraneuris stenophylla Rydb. Narrow- leaved Tetraneuris. Fig. 4538. Tetraneuris stenophylla Rydb. Bull. Torr. Club 33: 155. 1906. Perennial with a branched caudex, the branches often 3i' long, the upper portion covered with the scarious bases of old leaves. Bases of the leaves dilated, sparingly silky-villous; blades narrowly lin- ear, i'-ii' long, about 1" wide, glabrous, conspicu- ously punctate; scape 2'-4' high, minutely strigose; involucre 5"-/' wide; bracts oval or oblong-acutish; rays about 5" long and 2" wide. In dry soil, Kansas to Colorado and Mexico. Formerly confused with T. scaposa (DC.) Greene. Tetraneuris fastigiata Greene, of Kansas, differs by the leaf-bases and involucre being more densely pubes- cent; it is known only from imperfect specimens, and may not be distinct from T. stenophylla, over which it has priority of Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Britton, Nathaniel Lord, 1859-1934; Brown, Addison, 1830-1913. New York, Scribner
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
