. 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. 3H CYPERACEAE. Vol. io. Eleocharis Engelmanni Steud. Engelmann's Spike-rush. Fig. 767. Eleocharis Engelmanni Steud. Syn. PI. Cyp. 79. 1855. Eleocharis ovata var. Engelmanni Britton, journ. N. Y. Micros. Soc. 5: 103. 1889. E. monticola Fernald, Proc. Am. Acad. 34: 496. 1899. Annual, similar to the preceding species, but culms commonly taller, sometimes 18' h
. 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. 3H CYPERACEAE. Vol. io. Eleocharis Engelmanni Steud. Engelmann's Spike-rush. Fig. 767. Eleocharis Engelmanni Steud. Syn. PI. Cyp. 79. 1855. Eleocharis ovata var. Engelmanni Britton, journ. N. Y. Micros. Soc. 5: 103. 1889. E. monticola Fernald, Proc. Am. Acad. 34: 496. 1899. Annual, similar to the preceding species, but culms commonly taller, sometimes 18' high. Upper sheath obliquely truncate or i-toothed; spikelet oblong- cylindric or' ovoid-cylindric, obtuse or subacute, 2"-8" long, i"-ii" in diameter, many-flowered; scales pale brown with a green midvein and narrow scarious margin, ovate, obtuse, deciduous; style 2-cleft; bristles about 6, not longer than the achene, or wanting; achene broadly obovate, brown, smooth, lenticular; tubercle broad, low, covering the top of the achene. In wet soil, Massachusetts to Indiana, South Dakota, Washington, New Jersey, Texas and California. July-Sept. 11. Eleocharis macrostachya Britton. Pale Spike-rush. Fig. 768. E. macrostachya Britton ; Small, Fl. SE. U. S. 184. 1903. Perennial by rootstocks, pale green. Culms tufted, rather stout, sometimes twisted, 40 high or less; spikelet lanceolate-cylindric, about 1" long or less, acute, many-flowered; scales oblong- ovate to oblong-lanceolate, acute, light green to straw-color, with a somewhat darker midvein; bristles as long as the achene and tubercle, or shorter, sometimes very short; style 2-cleft; achene obovate, lenticular, mm. long, brown, the cap-like tubercle small, yellow. In wet soil, Missouri to Louisiana, Nevada, Cali- fornia and Jalisco. 12. Eleocharis palustris (L.) ; S. Creeping Spike-rush. Fig. 769. Scirpus palustris L. Sp. PI. 47. 1753. Eleocharis palustris R. & S. Syst. 2: 151. 1
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
