62 NORTH AMERICAN FLORA [VorumE 17 
mm. long; sepals oblong or ovate-oblong, becoming 5-7 mm. long; filaments not dilated, 
glabrous; anthers shorter than the filaments; fruit-heads 15 mm. in diameter or less; 
achenes broadly obovate, 3-3.5 mm. long, with a broad undulate or crested dorsal wing and 
usually prominent facial wings, the erect beak curved over the top of the crest, one half as 
long as the body. 
TYPE LOCALITY: Cullman, Alabama. 
DISTRIBUTION: Alabama. 
ILLUSTRATION: Bull. Torrey Club 24: 7. 291. 
34. Sagittaria intermedia Micheli, in DC. Monog. 
Phan. 3: 80. 1881. 
Sagitlaria acutifolia Griseb. Cat. Pl. Cuba 218. 1866. Not S. acutifolia I. 1753. 
Plants emersed or partially submerged, 2~5 dm. tall; leaves erect or nearly so, the 
blades sagittate, hastate or triangular-hastate, 5-15 cm. long, the terminal lobe lanceolate 
to deltoid, acute or obtusish, the basal lobes narrower and longer than the terminal lobe, 
except in cases of imperfectly developed blades, acute or acuminate; scapes erect, com- 
monly shorter than the leaves, simple or branched; whorls of the inflorescence few or 
many; bracts ovate, obtuse, partially united ; pedicels 5-15 mm. long, those of the pistil- 
late flowers shorter and much thicker than those of the staminate flowers; sepals ovate to 
orbicular-ovate, becoming 6-8 mm. long; filaments not dilated, glabrous; anthers about as 
long as the filaments; fruit-heads 11-15 mm. in diameter; achenes 1.5-2 mm. long, 
obovate-cuneate, with the rather broad dorsal wing crest-like and the faces tuberculate, the 
beak minute, horizontal. 
TYPE LOCALITY: Not given [Cuba]. 
DISTRIBUTION : Cuba and Jamaica. 
ILLUSTRATIONS : Descourt. Fl. Ant. p/. 497; Engler, Pilanzenreich 445: /. 13, ¢ (fruit). 
35. Sagittaria montevidensis Cham. & Schlecht. 
Linnaea 2: 156. 1827. 
Plants emersed or partially submerged, 5-17 dm. tall; leaves erect or nearly so, the 
blades hastate or sagittate, 1-6 dm. long, often as broad, glabrous above, sparingly sca- 
brous on the veins beneath, the termina] lobe linear, lanceolate, deltoid, or orbicular-del- 
toid, the basal lobes acute or acuminate, more or less divergent, about as long as the ter- 
minal lobe; scapes stout, sometimes 6-8 cm. thick at the base, simple or branched ; whorls 
of the inflorescence several or numerous, 2-4 of the lower ones pistillate; bracts lanceolate, 
acuminate, united below; pedicels of the staminate flowers slender, 2-5 cm. long, surpass- 
ing those of the pistillate flowers; sepals becoming 10-15 mm. long, obtuse; corolla 2-4 
cm. broad; filaments not dilated, glandular-pubescent, longer than the anthers; fruit- 
heads 1.5-3 cm. in diameter; achenes cuneate to rhombic-obovate, 2-3 mm. long, winged, 
the beak slender, horizontal or oblique, the faces unappendaged. 
TYPE LOCALITY : Montevideo, Brazil. 
DISTRIBUTION : North Carolina to Florida, and in California. Naturalized from South America. 
ILLUSTRATIONS : Bot. Mag. £1. 6755; Rep. Mo. Bot. Gard. 6: f/. 29; Engler, Pflanzenreich 
455; f. 13, G, H, and/ (stamen and fruit). 
