REVISION OF RUMEX. 95 



1.5x2 cm., rhombic ovate to oblanceolate, obtuse to acute, 

 cuneate, not wavy, reduced and ultimately obsolete on the 

 branches ; flowers in the upper axils, forming slender spike- 

 like racemes, few in a whorl; pedicels once or twice as long 

 as the fruit, at length much dilated and involute above so 

 as to appear clavate, jointed below the middle, frequently 

 papillate; outer sepals rather large, reflexed or arcuately 

 spreading; valves 1x2 mm., somewhat 3-nerved, with a 

 few transverse veins, acute or acutish, with about 3 broad 

 hooked teeth on each side; callosities 3, minute, basal, 

 acute margined ; achene .7x1.3 mm. Sp. i. (1753), 336; 

 Steinheil, Ann. Sc. Nat. 2 ser. ix. 193, pi. 7; Meisner, 

 DC. Prod. xiv. 62. A Mediterranean species of some- 

 what the habit of Acelosa, represented by a single collec- 

 tion from Louisiana (Port Eads, May 6, 1885, Langlois, 

 110. 95 and 134). Plate 33. 



