FROGSBIT FAMILY. 333 



ruiting 

 anarrow 



Phyllodia oblanceolate, long-acute, f 

 to f inch wide, 4 to 12 inches long. * * * Dedicated to the venerable Southern 

 botanist, Doctor Chapmau, 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, /. 289. 1897. 



MOHR'S SAGITTARIA. 



Leaves lanceolate-linear, long-attenuate to the acute apex, tapering gradually at 

 the base to the Blender, ascending petioles, 15 to 20 inches long, f to - 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 f to % inch long, connected to the middle; fer- 

 tile pedicels spreading, somewhat longer than the sterile, in 3 or 4 verticils, t to f 

 inch long; sepals oblong, obtuse, n, to inch long; stamens 9 to 12, anthers broadly 

 elliptical; achenium ^ inch long, obliquely cuneate with a short lateral beak, crenu- 

 lately crested and broad-winged on both margins, laterally unicostate or narrowly 

 winged; fruiting head globose, ^ to ,% inch in diameter. PLATE 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 citv, 

 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. 



Sagiltaria graminea yar. platyplujlla 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 l sunken lands' 

 of Missouri." 



Herb. Geol. Surv. Herb. Mohr. 



VALLISNERIACEAE. Frogsbit Family. 



PHILOTRIA Raf. Am. Month. Mag. 2 : 175. 1818. 



(ELODEA Michx. Fl. Bor. Am. 1:20. 1803. Not Elodes Adans.) 

 (UDORA Nutt. Gen. 2:242. 1818.) 



Five species, aquatic perennial herbs of temperate and tropical regions. 

 Fhilotria caiiadensis (Michx.) Brittou, Science, ser. 2, 2:5. 1895. WATER WEED 



Elodea canadensis Michx. Fl. Bor. Am. 1 : 20. 1803. 



Gray, Man. ed. 6, 496. Chap. Fl. 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. 



