Caltha palustris L.

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PLANTAE EXSICCATAE GRAYANAE
550. Caltha palustris L.
Sp. PI. 558 (1753); DC. Prod. i. 44 (1824); Torr. &
Gray, FI. N. Am. i. 26 (1838); Gray, Man. 11 (1848),
Gen. 111. L 32, L 10 (1848) and Syn. FI. i. pt 1, 39
(1895); Britton & Brown, 111. FI. ii. 51, fig. 1545 (1896).
Syn. Trollius polluter Krause in Sturm, FI. Deutschl.
ed. 2, v. 240, t 37 (1901).
Mostly selected small specimens; flowers bright yellow.
Wet muck along brook in woods, Woburn, Massachu-
setts.
Coll. C. A. Weatherby, L. B. Smith. May 11, 1931.
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