WATER-PLANTAIN FAMILY. 329 
ZANNICHELLIA L. Sp. Pl. 2:969. 1758. Hornep Ponpwerp. 
Nine species described, probably all forms of one. Cosmopolitan aquatics. 
Zannichellia palustris L. Sp. Pl. 2:969. 1753. 
Gray, Man. ed.6, 565. Chap. Fl. 445. Wats. Bot. Calif. 2:193. Coulter, Contr. 
Nat. Herb, 2:458. Morong, Mem. Torr, Club, 3:57, t. 64. 
Evrorg, Asia, AFRICA, PHILIPPINES, AUSTRALIA. 
Canadian zone to Louisianian area. Nova Scotia, New Brunswick, Ontario to Sas- 
katchewan; New England west to Minnesota, south to Florida and Texas. 
ALABAMA: Coast plain. Pools and still-flowing water, fresh or brackish. Mobile 
County, estuaries of Mobileand Dog rivers. Baldwin County, Josephine. Copious. 
llowers in June and July. Annual. ? 
Type loculity: ‘ Hab. in Europae, Virginiae fossis, fluviis.” 
Herb. Geol. Surv. Herb. Mohr. 
NAIAS L. Sp. Pl. 2:1015. 1753. 
Ten to 12 species, temperate and tropical regions Northern Hemisphere. North 
America, + species. : 
Naias guadalupensis (Spreng.) A. Br. Seemann’s Journ. Bot. 2: 276. 1864. 
Caulinia quadalupensis Spreng. Syst.1:20. 1825. 
Naias flerilis var. fusiformis Chap. FI). 444. 1860. 
Morong, Mem. Torr. Club, 3:60, ¢. 68. 
West IxprEes, MEXICO. 
Louisianian area. Western Florida to Louisiana. 
ALABAMA: Gently flowing deep water. Mobile County, estuaries of Mobile and 
Dog rivers, forming in large part with Ruppia, Zaunichellia, Potamogeton perfoliatus, 
Vallisneria, and Nitella, the dense masses of subaquatic vegetation. Mature fruit 
in July. Perennial. ? 
Type locality: ‘“Insula Guadalupa. Bertero.” 
Herb. Geol. Surv. Herb. Mohr. 
SCHEUCHZERIACEAE. Arrow-Grass Family. 
TRIGLOCHIN L. Sp. Pl. 1:338. 1753. ARROW-GRaSs. 
Marsh plants of frigid and temperate regions. About 10 species. North America, 
3 species. 
Triglochin striata Ruiz & Pav. Fl. Peruv.3:72. 1802. 
Triglochin triandra Michx. F]. Bor. Am. 1: 208.1803. 
El. Sk 1:417. Gray, Man. ed. 6,557. Chap. Fl. 447. 
Soctn AMERICA TO BRAZIL, OCEANIA, SOUTH AFRICA. 
Carolinian to Louisianian area. From Maryland along the coast to Florida and 
Louisiana. 
ALABAMA: Coast region. Fresh or brackish marshes. Mobile County, marshy 
banks, mouth of Dog River. Baldwin County. Flowers June and July. Not rare. 
Perennial. 
Type locality: ‘‘ In Peruviae lacubus et inundatis ad Surco, Miraflores, Lurigancho, 
Magdalena et Limae tractus.” 
Herb, Geol. Surv. Herb. Mohr. 
ALISMACEAE. Water-Plantain Family. 
ALISMA L. Sp. Pl. 1:342. 1753. 
Ten species; cooler and warmer temperate zone, Europe, America. 
Alisma plantago-aquatica L. Sp. Pl. 1:342. 1753. WATER PLANTAIN. 
Ell. Sk. 1:484. Gray, Man. ed. 6, 554. Chap. Fl. 448. Wats. Bot. Calif. 2: 200. 
Coulter, Contr. Nat. Herb. 2 : 454. 
Eurore, Asta, AFRICA, AUSTRALIA. MEXICO. 
Canadian zone to Louisianian area. From Nova Scotia across the continent to 
the Pacific coast, south to Florida and the Gulf of Mexico. 
