86 MISSOURI BOTANICAL GARDEN. 
Alabama (Mohr), Louisiana (Lindheimer, 1859; Hale), 
Texas ( Wright; Lindheimer, 1843, 93), Ohio ( Riddell, 
1838), Indiana (Canby, 1862), Illinois, Michigan, 
( Wright), Wisconsin ( Hale, 1861 ; Douglas), and Iowa. — 
Plate 23. 
Pedicels shorter, arcuately recurved: valves more flexible 
and with lighter veins except in Floridanus, one or more of them 
with elongated callosities, except in forms of altissimus. 
a. Stem often glaucous, especially in the second: leaves pale green, 
lanceolate, minutely crenulate-crisped, not undulate nor cordate: 
inflorescence nearly leafless.—Glabrous throughout. 
12. R. Frorrpanus, Meisner.— A couple of feet high, 
slender, simple or with a few suberect branches; leaves 
scarcely over 1.5x8 cm. (the lowest dying early), strongly 
crenulate, lanceolate, subacute; panicle leafless, simple, 
the few branches nearly erect ; whorls very dense, the lower 
remote, the upper closely approximated ; pedicels rather 
stout, once or twice as long as the fruit, in the former case 
concealed, tumidly jointed about the middle, apophysate 
next the flower ; valves 3.5 to 4 mm. long, deltoid, slightly 
blunt-pointed, with rather heavy veins; callosities 3, sub- 
equal, less than 1 mm. broad, two-thirds as long as the 
valves, finely warty and somewhat wrinkled; achene 1.8 x 
2.7 mm.— DC. Prod. xiv. (1856), 46.— Known to me 
only through specimens from New Orleans (Joor, 1885) and 
Pointe a la Hache, La. (Langlois, 1880, no. 135, 1884, 
and 1885, no. 96), but presumably extending along the 
Gulf coast to Florida, where the type was collected by 
Rugel. — Plate 24, 
The inflorescence is suggestive of simple forms of the next 
species, but the leaves are more crenulate, and the fruiting 
valves are as heavily veined as in verticillatus, to which 
most of the material referred here by collectors apparently 
belongs. 
13. R. autisstuus, Wood. — Two or three feet high 
from one or several long conical roots, rather slender, 
