438 ALISMACEA. 
Echinodorus subulatus, Engelm. in A. Gray’s Manual, ed. 1, p. 460, fide Micheli. 
Echinodorus tenellus, Buch. Ind. Crit. p. 21; Micheli in DC. Monogr. Phanerog. iii. p. 47. 
MassacHUsEtts and Itino1s southward.—Mzexico, Vera Cruz (Miller, 2142), Orizaba 
(Weber).—Co.omBia and VENEZUELA to Guiana and Urvevay. Hb. Kew. 
2. SAGITTARIA. 
Sagittaria, Linn. Gen. Plant. n. 1067; Benth. et Hook. Gen. Plant. iii. p. 1006. 
About fifteen species, generally diffused in the temperate and tropical regions of 
both hemispheres. 
1. Sagittaria graminea, Michx. Fl. Bor.-Am. ii. p.190; Pursh, Fl. Am. Sept. 
ii. p. 897; Micheli in DC. Monogr. Phanerog. iii. p. 70. 
Sagittaria acutifolia, Pursh, Fl. Am. Sept. i. p. 397. 
Sagittaria stolonifera, Engelm. et A. Gr. Pl. Lindheim. p. 26. 
Sagittaria purshii, Kunth, Enum. Pl. ii. p. 160. 
Canaba to Texas.—Mexico (Karwinski, in herb. Petrop. fide Micheli). 
2. Sagittaria guyanensis, H. B. K. Nov. Gen. et Sp. i. p. 250; Kunth, 
Enum. Pi. iii. p. 161; Ch. et Schl. in Linnea, vi. p. 42. 
Lophiocarpus guyanensis, Micheli in DC. Monogr. Phanerog. iti. p. 62. 
Sagittaria echinocarpa, Mart. Amcenit. Bot. Monac. p. 6, t. 3. 
Alisma echinocarpa, Seubert in Mart. Fl. Bras. iii. 1, p. 105. 
Echinodorus guyanensis, Griseb. Fl. Brit. W. Ind. p. 505. 
Sovrn Mexico, Hacienda de la Laguna (Schiede & Deppe), near Vera Cruz (Sar- 
torius); Panama (Seemann, 186; 8. Hayes, 414)——Common in Tropica, SovutH 
AmeERIcA; also occurring in the West InprEs, and widely spread in TropicaL Asia and 
Arrica. Hb. Kew. 
3. Sagittaria lancifolia, Linn. Amon. Acad. v. p. 409; Kunth, Enum. Pl. 
iii. p. 158; Griseb. Fl. Brit. W. Ind. p. 505; Bot. Mag. t. 1792; Micheli in DC. 
Monogr. Phanerog. iii. p. 72 (varietates plures). 
Sagittaria plantaginifolia, Mart. et Gal. in Bull. Acad. Brux. ix. (reprint, P- 8). 
Sagittaria ovata, Redouté, Liliac. t. 411. 
Sagittaria angustifolia, Lindl. Bot. Reg. t. 1141. 
Sagittaria sellowiana, Kunth, Enum. Pl. iii. p. 159. 
Kentucky and Virginia southward.—SovurH Mexico, Oaxaca (Galeotti, 4892), Vera 
Cruz (Gouin); Guatemaa (Godman & Salvin); Nicaracua, Greytown (Tate).—VENE- 
ZUELA to GUIANA and Brazit and in the West Inpies. Hb. Kew. 
4, Sagittaria macrophylla, Zucc. in Abhandl. K. Bayr. Akad. 1832, p. 289; 
Schl. in Linnea, xviii. p. 432; Micheli in DC. Monogr. Phanerog, ili. p. 71. 
Sagittaria mexicana, Steud. Nomen. Bot. 
Lovistana.—Mexico, canal near the city of Mexico (Bourgeau, 242), without loca- 
lities (Berlandier ; Schaffner ; Karwinski). Ub. Kew. 
