. 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 102nd meridian. uallysharply serrate with distinct teeth, veiny, i-3long, 3-io wide, or those of the branches linear-lanceolate and entire; heads numerous, 6-8high, densely clustered in the cymes, their pedun-cles mostly short; inner bracts of the involucrelanceolate, acuminate; pappus tawny or brown. In dry soil, Illinois to North Dakota, Colorado,Alabama and Texas. Perhaps a race of the pr
. 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 102nd meridian. uallysharply serrate with distinct teeth, veiny, i-3long, 3-io wide, or those of the branches linear-lanceolate and entire; heads numerous, 6-8high, densely clustered in the cymes, their pedun-cles mostly short; inner bracts of the involucrelanceolate, acuminate; pappus tawny or brown. In dry soil, Illinois to North Dakota, Colorado,Alabama and Texas. Perhaps a race of the precedingspecies. Kuhnia Hitchcockii A. Nelson, a little knownspecies of Kansas, differs by having very small linearleaves, at least on the upper part of the plant. 8. LACINARIA Hill, Veg. Syst. 4: 49. pL 46.[LiATRis Schreb. Gen. PI. 542. 1791.]Erect perennial herbs, usually from a globular tuber, simple or little branched, with alter-nate, entire, narrow 1-5-nerved leaves, and spicate or racemose discoid heads of rose-purpleor white flowers. Involucre oblong, ovoid or subhemispheric, its bracts imbricated in severalseries, the outer shorter. Receptacle flat, or slightly convex, naked. Corolla regular, its. Genus 8. THISTLE FAMILY. 365 L. punctata. L. acidota. L. pycnostachya. tube slender, its limb 5-lobed or 5-cle£t. Anthers obtuse at the base. Style-branches elon-gated, obtuse or flattened at the apex. Achenes lo-ribbed, slender, tapering to the of I or 2 series of slender barbellate or plumose bristles. [Latin, fringed, from theappearance of the heads.] About 35 species, natives of eastern and central North America, known as Blazing Star, orButton Snakeroot from the globular tubers. Type species : Serratula squarrosa L. * Bracts of the involucre acute, acuminate or cylindric, or turbinate, is-60-flowered, its base rounded. Bracts with lanceolate spreading rigid tips. i. L. Bracts mucronate, closely appressed. 2.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
