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MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



[Vol. 9, No. 2 



correlated geographic ranges. No intermediates have been, seen or reported; how- 

 ever, the two plants react similarly to edaphic surroundings and remarkably similar 

 vegetative responses have been seen in both. The achenes of each are very much 

 alike, differing mainly in size (being generally larger in the Old World), but the 

 bracts are markedly different in the two species. 



In the absence of mature achenes, accurate separation of juvenile specimens 

 of 5. cuneata and S. latifolia has been extremely difficult. The surest means of 

 identity is the bract-differences; S. latifolia has a boat-shaped bract somewhat 

 firm in texture, while S. cuneata has a somewhat membranous lance-attenuate 

 bract. Like S. engelmanniana, S. cuneata until comparatively recently was in- 

 cluded in S. variabilis. Since its separation, however, a formidable synonymy has 

 developed based entirely on vegetative differences. The careful observations of 

 Lunell, along with excellent companion collections represented in many herbaria, 

 demonstrate the wide edaphic responses of the same plant to varying conditions, 

 and clearly show the futility of giving taxonomic rank to vegetative variations. 

 The large winter-storage organs were sought as food by American Indians, espe- 

 cially in the Northwestern States, and with those of S. latifolia were included in 

 the Indian name "Wapato." 



19. Sagittaria sagittifolia L. Sp. PI. 993. 1753. 



Sagitt aria minor Mill. Gard. Diet. ed. 8. 1768. 



Sagitta major Scop. Fl. Cam. ed. 2. 2: 239. 1772. 



Sagittaria natans Pallas, Reise 3: 77. 1778. 



Sagittaria monoica Gilib. Fl. Lith. 2: 218. 1782. 



Sagittaria obtusa Thunb. Fl. Jap. 242. 1784. 



Sagittaria sagittata Thunb. Fl. Jap. 242. 1784. 



Sagittaria vulgaris Gueldens. Reisen Russ. 2: 45. 1791. 



Sagittaria alpina Willd. Sp. PI. 4: 410. 1805. 



Vallisneria bulbosa Poir. in Lam. En eye. 7: 321, p.p. 1808. 



Sagittaria heterophylla Schreb. in Schweigg. & Korte, Fl. Erl. 2: 119. 1811. 



Sagittaria sinensis Sims, Bot. Mag. pi. 1631. 1814. 



Sagittaria acuminata J.E.Sm. in Rees, Cyc. 31: no. 4. 1814. 



Sagittaria aquatica S. F. Gray, Nat. Arr. Br. PI. 2: 216. 1821. 



Sagittaria aquatica var. minor (Mill.) S. F. Gray, Nat. Arr. Br. PI. 2: 216. 1821. 



Sagittaria hastata Don, Prodr. Fl. Nep. 22. 1825. 



Sagittaria doniana Sweet, Hort. Brit. 375. 1826. 



Sagittaria sagittifolia var. tenuior Wahl. Fl. Suec. 2: 621. 1826. 



Sagittaria hirundinacea Blume, Enum. PI. Jav. 34. 1827. 



Sagittaria hermaphrodita Ham. in Wail. Cat. 175. 1832. Nomen nudum. 



Sagittaria macrophylla Bunge, Mem. Sav. Etr. 2: 147. 1833. 



Sagittaria edulis Schlecht. Linnaea 18: 432. 1844. 



Sagittaria alpina var. emersa Turcz. Bull. Soc. Imp. Nat. Mosc. 27(3): 58. 1854. 

 Sagittaria alpina var. submersa Turcz. Bull. Soc. Imp. Nat. Mosc. 27(3): 58. 1854. 

 Sagittaria sagittifolia var. longiloba Turcz. Bull. Soc. Imp. Nat. Mosc. 27(3): 58. 1854. 

 Sagittaria sagittifolia var. v alii snerii folia Coss. & Godr. Fl. Fr. 3: 167. 1855. 

 Sagittaria sagittifolia var. stratiotoides Bolle, Verh. Bot. Ver. Mark. Brand. 3: 164. 

 1861. 



Sagittaria sagittifolia var. breviloba Reg. Mem. Acad. St.-Petersb. 7(4): 154. 1862. 

 Sagittaria sagittifolia var. minor (Mill.) Reg. Mem. Acad. St.-Petersb. 7(4): 154. 1862. 

 Sagittaria sagittifolia var. subaequilonga Reg. Mem. Acad. St.-Petersb. 7(4): 154. 1862. 

 Sagittaria sagittifolia var. edulis (Schlecht.) Sieb. ex. Miq. Ann. Mus. Lugd. Bot. 

 2: 138. 1865. 



Sagittaria sagittifolia var. aequiloba Schur, Enum. PI. Trans sil. "630. 1866. 

 Sagittaria sagittifolia var. heterophylla (Schreb.) Schur, Enum. PI. Transsil. 630. 

 1866. 



Sagittaria sagittifolia var. divaricata Schur, Enum. Pi. Transsil. 630. 1866. 

 Sagittaria sagittifolia var. leucopetala Miq. 111. Fl. Arch. Ind. 49. 1870. 

 Sagittaria tenuior (Wahl.) Gandoger, Fl. Lyonn. 226. 1875. 



Sagittaria sagittifolia var. diversi folia Micheli in DC. Monogr. Phan. 3: 66. 1881. 



