WOOTON AND STANDLEY—FLORA OF NEW MEXICO, 41 
1. Zanichellia palustris L. Sp. Pl. 969. 1753. 
Typr tocauity: “Habitat in Europae, Virginiae fossis, fluviis.’’ 
Rana: In streams and ponds throughout North America except the extreme 
north; also in Eurasia. 
New Mexico: Tunitcha Mountains; Manguitas Spring; Salt Lake; Cienaga Ranch; 
Fort Tularosa; Roswell. 
10. NAIADACEAE. Naias Family. 
1. NAIAS L. Naras. 
Slender branched aquatic, entirely submerged, with fibrous roots, numerous oppo- 
site or fasciculate leaves, and moncecious or dicecious, sessile or pedicellate, axillary, 
inconspicuous flowers; mature carpel solitary, sessile, ellipsoid, with a crustaceous 
pericarp. 
1. Naias guadalupensis (Spreng.) Morong, Mem. Torrey Club 37: 60. 1893. 
Caulinia guadalupensis Spreng. Syst. Veg. 1: 20. 1825. 
Type Locauity: “Insula Guadalupa.”’ 
Range: Floating in water, Nebraska and Oregon to Florida and Tropical America. 
New Mexico: Lake La Jara (Standley 8274). 
Order 9. ALISMALES. 
KEY TO THE FAMILIES. 
Petals and sepals similar; anthers long and narrow; 
carpels coherent.........--.----------+--+-- 11. JUNCAGINACEAE (p. 41). 
Petals and sepals unlike, the former white; anthers 
short and thick; carpels not coherent........ 12. ALISMACEAE (p. 42). 
11, JUNCAGINACEAE. Arrow grass Family. 
1. TRIGLOCHIN L. Arrow Grass. 
Perennial herbs with fleshy grasslike leaves clustered at the base of the scapelike 
stem; flowers small, spicate, with 3 ovate sepals and 3 similar petals; stamens 3 or 6; 
ovaries 3 or 6, united, the capsule splitting at maturity into 3 or 6 carpels. 
KEY TO THE SPECIES. 
Carpels 6; plants tall, 60 to 80 cm. high, stout..-...-------.-...--- 1. T. maritimum. 
Carpels 3; plants low, 35 cm. high or less, slender.........-......-- 2. T. palustre. 
1. Triglochin maritimum L. Sp. Pl. 339. 1753. 
Tyre Locauity: “Habitat in Europae maritimis.”’ 
Rance: Throughout the United States and in Mexico; also in Europe and Asia. 
New Mexico: Fitzgerald Cienaga; Mescalero Agency; Tularosa. Marshes, in the 
Transition Zone. 
2. Triglochin palustre L. Sp. Pl. 338. 1753. 
Type Locauity: “Habitat in Europae inundatis uliginosis.’’ 
RanGE: Widely distributed in North America; also in South America, Europe, and 
Asia. 
New Mexico: Grass Mountain; Rio Pueblo; Silver Spring Canyon. Wet ground, 
in the Transition and Canadian zones. 
