FROGSBIT FAMILY. 333 
simple, the fertile flowers numerous; bracts lanceolate, acute or acuminate, 3; to + 
inch long, slightly connate at the base; fertile pedicels # to 1 inch lon ; fruiting 
head 3; todinchin diameter; achenium almost beakless, +4; inch long, with a narrow 
dorsal crest, the sides not costate nor winged. Phyllodia oblanceolate, long-acute, ¢ 
to ? inch wide, 4 to 12 incheslong. * * .* Dedicated to the venerable Southern 
botanist, Doctor Chapman, by whom it was first collected.” 
Louisianian area. Western Florida. 
ALABAMA: Marshes, stagnant pools, and wet banks of creeks. Mobile County, 
Kelly’s pond, marshes Mobile River. Flowers April to June. Mohr, 1880. 
Type locality: ‘‘‘In a creek on the road to Mariana, 3 or 4 miles from Ocheesee, 
west Florida;’ also collected by Dr. Mohr, 1880, * * * 1884, in the vicinity of 
Mobile, Ala.” 
Herb. Geol. Surv. Herb. Mohr. 
Sagittaria mohrii J. G. Smith, Bull. Torr. Club, 24: 19, t. 289. 1897. 
Monr’s SAGITTARIA. 
Leaves lanceolate-linear, long-attenuate to the acute apex, tapering gradually at 
the base to the slender, ascending petioles, 15 to 20 inches long, $to 4 inch wide; scape 
shorter than the leaves, simple, triquetrous above, weak, reclining, decumbent after 
flowering, frequently ripening its fruit under water, with 6 to 8 verticils, the inflo- 
rescence narrowly pyramidal; bracts $ to 4 inch long, connected to the middle; fer- 
tile pedicels spreading, somewhat longer than the sterile, in 3 or 4 verticils, $ to & 
inch long; sepals oblong, obtuse, 1, to 4 inch long; stamens 9 to 12, anthers broadly 
elliptical; achenium j; inch long, obliquely cuneate with ashort lateral beak, crenu- 
lately crested and broad-winged on both margins, laterally unicostate or narrowly 
winged; fruiting head globose, + to 3; inch in diameter. Puate III. 
Partially submerged aquatic, growing in tufts, at the nodes of horizontal stolons. 
First collected at Mobile by Charles Mohr, August 16, 1895. 
ALABAMA: Coast plain. Deep muddy ditches and shallow ponds. Mobile, in the 
open flats forming the watershed between Dog and Mobile rivers (southwestern 
suburbs). In shallow water and partially exsiccated ground. 
Plants were found with the leaf blade narrowly linear, and mostly wanting, the 
leaves reduced to strict triangular phyllodia. Abundant, August 20, 1896. 
Type locality: ‘Muddy shallow ponds near the western suburbs of Mobile city, 
August 18, 1895.” 
Type in Herb. Mo. Bot. Gard. 
Herb. Geol. Surv. Herb. Mohr. 
Sagittaria platyphylla (Engelm.) J. G. Smith, Rep. Mo. Bot. Gard. 6:55, t. 26. 1894. 
BROAD-LEAVED SAGITTARIA. 
Sagittaria graminea var. piatyphylla Engelm. in Gray, Man. ed. 5, 494. 1867. 
Carolinian and Louisianian areas. Missouri to Texas; east from Mississippi and 
Louisiana to Florida. 
ALABAMA: Coast plain. Muddy ditches, ponds. Mobile. Flowers June to Sep- 
tember. Frequent. 
Type locality: ‘Found farther south [than 8. graminea].” Smith’s locality: ‘In 
swamps and ponds from Texas to Mississippi and northward to the ‘sunken lands’ 
of Missouri.” 
Herb. Geol. Surv. Herb. Mohr. 
VALLISNERIACEAE. Frogsbit Family. 
PHILOTRIA Raf. Am. Month. Mag. 2:175. 1818. 
(ELODEA Michx. F]. Bor. Am. 1:20. 1803. Not Elodes Adans.) 
(Upora Nutt. Gen. 2: 242. 1818.) 
Five species, aquatic perennial herbs of temperate and tropical regions. 
Philotria canadensis (Michx.) Britton, Science, ser. 2, 2:5. 1895. WatTER WEED 
Elodea canadensis Michx. Fl. Bor. Am. 1:20. 1803. 
Gray, Man. ed. 6, 496. Chap. FI. 450. Wats. Bot. Calif. 2:129. Coulter, Contr. 
Nat. Herb. 2:421. 
Canadian zone to Louisianian area. Quebec and Ontario to Oregon and California; 
from New England south to New York, New Jersey, and North Carolina. 
ALABAMA: Coast region. In gently flowing deep water. Mobile County, estuary 
Mobile River. Rare. 
Type locality: ‘‘Hab. in rivulis Canadae.” 
Herb. Geol. Surv. Herb. Mohr. 
