Calla palustris L.

PLANTAE EXSICCATAE GRAYANAE
537. Calla palustris L.
Sp. PI. 968 (1753) ; Kunth, Enum. PI. iii. 59 (1844) ;
Gray, Man. 447 (1848) ; Schott, Gen. Aroid. t. 69 (1858)
and Prodr. 345 (I860) ; Engler in DC. Monog. Phan. ii.
214 (1879) ; Britton & Brown, IH. Fl. i. 363, fig. 880
(1896) ; Krause in Engler, Pflanzenr. iv. Fam. 23B (Heft
37), 154 (1908).
Syn. C. sagittifolia and C. virgirdca Michx. Fl. Bor.-Am.
ii. 187 (1803). Provenzalia bispatha, brevis, hetero-
phylla, palustris Raf. New Fl. Am. ii. 90 (1836).
Wooded swamp, East Boxford, Massachusetts.
Coll. L. B. Smith, S. L. Kelsey.	May 31.1931.
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