. 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. 7. Senecio Riddellii T. & G. RiddellsSenecio. Fig. 4616. i. Riddellii T. & G. Fl. N. A. 2 : 444- Fremontii (T. & G.) Rydb.; Britton, Manual Not 6. Fremontii T. & G. Woody at the base, usually branched, some-times shrubby, glabrous or nearly so, leafy, i°-6°high. Leaves sessile, or the lowest petioled, thick,ii-3¥ long, pinnately parted into 3-9 linear orfil
. 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. 7. Senecio Riddellii T. & G. RiddellsSenecio. Fig. 4616. i. Riddellii T. & G. Fl. N. A. 2 : 444- Fremontii (T. & G.) Rydb.; Britton, Manual Not 6. Fremontii T. & G. Woody at the base, usually branched, some-times shrubby, glabrous or nearly so, leafy, i°-6°high. Leaves sessile, or the lowest petioled, thick,ii-3¥ long, pinnately parted into 3-9 linear orfiliform, entire segments, or the upper entire;heads corymbose at the ends of the branches,5-io broad, slender-peduncled; involucre cylin-dric or becoming campanulate, 5-8 high, itsbracts linear, acute or acuminate, usually withsome subulate exterior ones; rays 8-15; achenescanescent; pappus white. Plains, in dry soil, Nebraska to Texas and 8. Senecio Pseudo-Arnica Less. Sea-beachSenecio. Fig. 4617. Arnica maritima L. Sp. PI. 884. ly^Z- Not 5*. mari- timus Pseudo-Arnica Less. Linnaea 6: 240. 1831. Perennial, somewhat fleshy; stem stout, mostlysimple, very leafy, 6-3° hi
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
