. 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. te; achenes 1-2-toothed ; bracts not squarrose. 2. G. lanceolata. I. Grindelia squarrosa (Pursh) Dunal. Broad-leaved Gum-plant. Fig. 4192. Donia squarrosa Pursh, Fl. Am. Sept. 559. squarrosa Dunal in DC. Prodr. 5 : 315- grandiflora Hook. Bot. Mag. pi. 4628. nuda Wood. Bot. Gaz. 3: 50. squarrosa nuda A. Gray, Syn. Fl. i: 118
. 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. te; achenes 1-2-toothed ; bracts not squarrose. 2. G. lanceolata. I. Grindelia squarrosa (Pursh) Dunal. Broad-leaved Gum-plant. Fig. 4192. Donia squarrosa Pursh, Fl. Am. Sept. 559. squarrosa Dunal in DC. Prodr. 5 : 315- grandiflora Hook. Bot. Mag. pi. 4628. nuda Wood. Bot. Gaz. 3: 50. squarrosa nuda A. Gray, Syn. Fl. i: 118. 1884. Glabrous, erect or ascending, branched,io-2° high. Leaves oblong or oblong-spatulate, obtuse, more or less clasping atthe base, sharply spinulose-dentate, some-times laciniate, I-ih long, 2>-6 wide;heads io-i,5 broad, very glutinous; bractsof the involucre linear-lanceolate, subulate-tipped, strongly squarrose; achenes trun-cate, those of the outer flowers usuallythicker than those of the inner; rays up to1 long or wanting; pappus of 2 or 3 awns. In dry soil, Illinois and Minnesota to Mani-toba, Missouri, Texas, Arizona and in southern New Jersey, Pennsyl-vania and New York. 2. Grindelia lanceolata Nutt. Nar-row-leaved Gum-plant. Fig. 4193. Grindelia lanceolata Nutt. Journ. Acad. :73- 1834- Slender, erect, glabrous, branched, about2° high. Leaves lanceolate or linear, acuteat the apex, sessile or clasping at the base,spinulose-dentate, laciniate, or the upperentire, i-2 long, 2-5 wide; heads nearlyas large as those of the preceding species;bracts of the involucre linear-subulate, theinner erect, the outer spreading; achenes1-2-toothed; pappus of I or 2 awns. In dry soil, Tennessee to Missouri, Kansas,Louisiana and Texas. July-Sept. 37 COMPOSITAE. Vol. III. 13. HETEROTHECA Cass. Diet. Sci. Xat. 21: 130. 1821. Erect, hirsute or pubescent, branching herbs, with alternate, mostly dentate leaves, andrather large heads of both discoid a
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
