HITCHCOCK AND CHASE—NORTH AMERICAN PANICUM. 53 
with some of the specimens referred to P. dichotomiflorum. A few specimens men- 
tioned under the latter species have papillose-hispid sheaths, but are low branching 
plants with the habit of that species 
rather than of P. bartowense. Although 
most of the specimens cited below are 
erect and simple, one, Chase 3850, is 
much branched and spreading at the 
base like P. dichotomiflorum, and it is 
possible that the erect, simple habit 
has no special significance as a specific 
character. 
DISTRIBUTION. 
Low ground, often growing in shallow Fic, 34.—Distribution of P. bartowense. 
water, Florida and the Bahamas. 
FLorma: Homosassa, Combs 971; Titusville, Chase 4007; Manatee, Tracy 6691; 
Braidentown, Tracy 7738; Palma Sola, Tracy 7740; Bartow, Combs 1220; 
Myers, Iitchcock Lee Co. Pl. 483; Palm Beach, Curtiss 5386; Little River, 
Eaton 467; Miami, Chase 3850, Eaton 164 in part, Hitchcock 648, 658, 697; 
without locality, Simpson in 1889. 
Banamas: Great Bahama, Britton & Millspaugh 2706; North Bimini, Brace 3467 
(all in Field Mus, Herb.). 
19. Panicum elephantipes Nees. 
Panicum elephantipes Nees, Agrost. Bras. 165, 1829. ‘‘Habitat in sylvis udis 
archipelagi Paraénsis.’’ The type, in the Munich Herbarium, labeled as above, 
consists of a large detached panicle, a leaf, and a few inches of a culm. 
Panicum fistulosum Hochst.; Steud. Syn. Pl. Glum. 1: 71. 1854. The locality 
mentioned is, ‘‘Surinam” and the specimen cited is 
“Hrbr. Kappler nr. 1434.’’ A specimen of Kappler 
1434 was examined at the Florence Herbarium and 
another at Stockholm. As no specimen of this num- 
ber was found among the Steudel plants at Paris, we 
are unable to locate the type. 
In India is found a similar species, described in 
Hooker’s Flora of India@ as P. proliferum (P. palu- 
dosum Roxb.) which, judging from the specimens in 
the U. S. National Herbarium, is a smaller plant, 
with small, tardily exserted panicles 10 to 15 cm. 
long. 
DESCRIPTION. 
Culms ascending from a decumbent, often widely 
creeping base, rooting at the nodes, succulent, as 
much as 2 cm. thick, apparently a meter or more 
high, glabrous, the nodes glabrous, usually conspicu- 
ously dark colored; sheaths glabrous, longer than the 
internodes, loose, the lower often tesselated by cross partitions between the nerves; 
ligules about 3 mm. long; blades 15 to 50 cm. long, 7 to 20 mm. wide, glabrous beneath, 
pilose above, at least near the base; panicles large and open, as much as 40 cm. long, 
Fia. 35.—P. elephantipes. From 
type specimen. 
a Fl, Brit. Ind. 7: 50. 1896. 
