Yale University Herbarium

YU.026983

PLANTAE EXSICCATAE GRAYANAE

537. Calla palustris L.

Sp. Pl. 968 (1753); Kunth, Enum. Pl. iii. 59 (1844); Gray, Man. 447 (1848); Schott, Gen. Aroid. t. 69 (1858) and Prodr. 345 (1860); Engler in DC. Monog. Phan. ii. 214 (1879); Britton & Brown, Ill. Fl. i. 363, fig. 880 (1896); Krause in Engler, Pflanzenr. iv. Fam. 23B (Heft 37), 154 (1908).

Syn. C. *sagittifolia* and C. *virginica* Michx. Fl. Bor.-Am. ii. 187 (1803). *Provenzalia bispatha, brevis, heterophylla, palustris* Raf. New Fl. Am. ii. 90 (1836).

Wooded swamp, East Boxford, Massachusetts.

Coll. L. B. SMITH, S. L. KELSEY.

May 31, 1931.