Echinodorus parvulus; Alismataceae

Echinodorus tenellus var. parvulus (Mart. ex Schult. & Schult.f.) Buchenau var. parvulus (Engelm) Fassett, determined by E.G. Voss 1959Swampy rich soil First Geological Survey of Michigan, 1837–1840, Douglass Houghton, State Geologist; Abram Sager, Botanist and Zoologist, 1837; John Wright, State Botanist, 1838, assisted by George H. BullThis quite likely is an isolectotype; cf. discussion in Mich. Bot. 6: 16-17. 1967; Michigan selected as type loc. by Small (N. Am. Fl. 17: 45. 1909).; The ink labels are by Miss E.C. Allmendinger who (ca. 1870), erroneously ascribed many collections to Houghton, with date 1838. Houghton is not known to have collected plants in St. Joseph Co. [NA duplicate (NA0080680) has habitat as "Swampy rich soil" The GH duplicate is 3 plants, marked "Michigan State Coll." in Gray's hand; on sheet with specimens from Mt. Auburn, Mass., and from St. Louis, the latter labeled in ink in Engelmann's hand; Coordinates placed abitrarily at Jct. Chicago Rd. and Kalamazoo St.] [NA0080680