. 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. acutish; chaff of thereceptacle linear, or slightly dilated above; achenes vil-lous on the angles; scales of the pappus ovate, acutish,equalling or longer than the achene. Prairies and hills, Missouri and Kansas to Texas. May-June. 3. Marshallia grandiflora Beadle & Boynton. Large-flowered Marshallia. Fig. 4526. Marshallia grandiflora Beadle & Boynton, Bilt-more 1:7
. 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. acutish; chaff of thereceptacle linear, or slightly dilated above; achenes vil-lous on the angles; scales of the pappus ovate, acutish,equalling or longer than the achene. Prairies and hills, Missouri and Kansas to Texas. May-June. 3. Marshallia grandiflora Beadle & Boynton. Large-flowered Marshallia. Fig. 4526. Marshallia grandiflora Beadle & Boynton, Bilt-more 1:7. 1901. Stem simple, i°-2° high, leafy to above themiddle. Lower and basal leaves obovate tooblong-lanceolate, tapering into petioles oftenas long as the blade, obtuse or obtusish;upper leaves lanceolate, sessile, or more orless clasping; florets slightly larger than thoseof M. trinervia, 7-io long; achenes larger,2-2¥ long, pubescent. In moist soil, Pennsylvania to West Virginiaand North Carolina. July-Aug. Marshallia obovata (Walt.) Beadle & Boyn-ton, a lower plant of the Southern States, withobo\ate or spatulate leaves mainly basal, is re-corded as extending northward to 504 COMPOSITAE. Vol. III. 77. PSILOSTROPHE DC. Prodr. 7: 261. 1838. [RiDDELLiA Nutt. Trans. Am. Phil. Soc. (II) 7: 271. 1841.] Branched annual or perennial woolly herbs, often nearly glabrous when old, with alter-nate leaves, and middle-sized heads of both tubular and radiate yellow or orange flowers,corymbose, or clustered at the ends of the branches. Involucre cylindraceous, its bracts 4-10in I series, narrow, equal, densely white-woolly, separate, but erect and connivent, commonlj^with 1-4 scarious ones within, and occasionally a narrow outer one. Rays broad, becomingpapery and whitish, persistent, 5-7-nerved, 2-3-toothed, pistillate. Receptacle small, perfect, fertile, their corollas with a short proper tube and elongated cylindra-ceous limb, 5-toothed, th
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
