224. 
225. 
226. 
227. 
228. 
229. 
230. 
26 
Sagittaria sagittefola, var. variabilis Micheli in D, C. Monog. 
Phan. 3: 69 (1881). 
Sagittaria variabilis var. angustifolia Engelm. in A. Gray, 
Man. Ed. 5, 493 (1867). 
Sagittaria variabilis var. diversifolia Engelm. in A. Gray, 
Man: Ed. 5, 493 (1867). 
Sagittaria gracilis Pursh, Fl. Am. Sept. 396 (1814). 
Sagittaria variabilis var. gracilis Engelm. in A. Gray, Man. 
Ed. 5, 493 (1867). 
Sagittaria hastata Pursh, Fl. Am. Sept. 396 (1814). 
Sagittaria variabilis var. hastata Engelm. in A. Gray, Man. 
Ed. 5, 493 (1867). 
Sagittarta obtusa Willd. Sp. Pl. 4: 409 (1806). 
Sagittaria latifolia pubescens (Muhl.) J. G. Smith. 
Sagittarta pubescens Muhl. Cat. 86 (1813). 
Sagittaria longiloba Engelm. in Torr. Bot. Mex. Bound. Surv. 
212 (1858)... 
Sagittaria longirostra (Micheli) J. G. Smith. 
Sagittaria.sagittafolia, var. (?) longirostra Micheli, in D. C. 
Monog. Phan. 3: 69 (1881). 
Sagittaria rigida Pursh, Fl. Am. Sept. 397 (1814). 
Sagittaria heterophylla Pursh, Fl. Am. Sept. 396 (1814), not 
Schreb. — 
Sagittaria heterophylla, vax. angustifolia, Engelm. in A. Gray, 
Man. Ed. 5, 494 (1867). 
Sagittaria heterophylla, var. elliptica, Engelm. in A. Gray, 
Man. Ed. 5, 494 (1867). 
Sagittaria subulata (L.) Buchenau, Abh. Nat. Ver. Bremen, 2: 
490 (1871). 
Alisma subulata L. Sp. Pl. 343 (1753). 
Sagittaria pusilla Nutt. Gen, 2: 213 (1818). 
Sagittaria natans, var. lorata A, Gray, Man. Ed. 6, 555 
(1890), not Chapm. 
Sagittaria subulata gracillima (S. Wats.) J. G. Smith. 
Sagittaria natans, var. (?) gractllima S. Wats. in A. Gray, 
Man. Ed. 6, 556 (1890). 
Sagittaria teres S. Wats. in A. Gray, Man. Ed. 6, 555 (1890). 
