272 BOTANICAL GAZETTE. 
3. A cocctnkAa Rottbeell. 1773: no. 35 of Koehn. Mon. |. ¢. 
vol. 1. p. 249. (A. latifolia LL. 1753, pro parte?: A. ramosior L. 
Mant. 1771, nee L. Sp. PL: A. purpurea Lam. 1783: A. san- 
guinolenta. Swartz. 1797: A. octandra var.  Poiret, 1810: A. 
stylosa Fisch. et Mey.1841: ?A. sagittata var. angustifolia A. Rich. 
1845: A. Texana Scheele, 1846: A. humilis Chapm. 1865, pre 
parte: ?A, longipes Sauvalle, 1868.) From New Jersey to St. 
Louis and New Orleans, then from Mexico to Brazil, and on the 
Sandwich, Marian, and Philippine Islands. I do not understand 
how this species could be united or confounded with Rotala ra- 
ries, and settled the true nature of the presumed stigmas of the 
capsules, The styles break off before ie capsules are ripe, 20 
only their base persists on the top of the capsule. The uppe! 
end of this persistent base is somewhat thickened and present 
the very aspect of a stigma. This observation induces the con 
viction that Scheele was deceived by the apparently short styles 
A. lingulata Griseb. 1866: Ludwigia scabriuscula Kellogg, 5° 
Watson.) Mobile, New Orleans, Northern Mexico to the West 
Indies, to Peru (Lima), and Paraguay. 
