. 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. 336 CYPERACEAE. Vol. I. 27. Scirpus polyphyllus Vahl. Leafy Bulrush. Fig. 827. Scirpus polyphyllus Vahl, Enum. 2 : 274. 1806. Perennial by slender rootstocks; culms slender, sharply triangular, ii°-4° tall, very leafy, the leaves 2"-3" wide, exactly 3-ranked, inconspicuously nodu- lose, rough-margined, the upper rarely overtopping the culm; leaves of
. 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. 336 CYPERACEAE. Vol. I. 27. Scirpus polyphyllus Vahl. Leafy Bulrush. Fig. 827. Scirpus polyphyllus Vahl, Enum. 2 : 274. 1806. Perennial by slender rootstocks; culms slender, sharply triangular, ii°-4° tall, very leafy, the leaves 2"-3" wide, exactly 3-ranked, inconspicuously nodu- lose, rough-margined, the upper rarely overtopping the culm; leaves of the involucre 3-6, the longer commonly somewhat exceeding the inflorescence; umbel more or less compound; spikelets ovoid, 1 J"—3" long, rarely oblong and 4" long, capitate in 3's-io's at the ends of the raylets; scales ovate, bright brown, mostly obtuse, mucronulate; bristles 6, mostly flexu- ous or twice bent, downwardly barbed above the middle, twice as long as the achene; stamens 3; style 3-cleft; achene obovoid, 3-angled with a broad face and narrower sides, short-pointed, dull. In swamps, wet woods and meadows, Massachusetts to Minnesota, south to Georgia, Tennessee and Arkansas. Some of the scales of the spikelets occasionally develop into linear leaves. 28. Scirpus Peckii Britton. Fig. 828. Peck's Bulrush. S. Peckii Britton, Trans. N. Y. Acad. Sci. n : 82. 1892. Perennial by rootstocks; culms slender, triangular, li"-4i° tall, leafy. Leaves elongated, 2"-$" wide, rough- margined, the upper overtopping the culm, those of the involucre 3-5, dark-colored at the base, the longer of them exceeding the inflorescence; umbel 1-2-compound, large; spikelets cylindric, obtusish, 3"-$" long, in capi- tate clusters of 2-10 at the ends of the raylets or some of them distinctly peduncled; scales dark brown, keeled, mucronate, falling early; bristles 4-6, downwardly barbed from below the middle to the summit, longer than the ache
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
