roLYANDRiA. MONO<?YNiA, Nuphar, 
mgiUmfolm, 4. foliis elongatis saglttato-cordatis obtnsis, calyce 6- 
phyllo, petalis nullis, antheris subsessilibus. — Salisb, 
1. c. 
Nymphaea sagittifolia. Walt. ft. car. 355. 
Nymphasa longifolia Mich. ft. amer. 1 . p. 312. 
In slow-flowing waters: Carolina and Georgia. I/. 
July, Aug. V. 5. Flowers small. 
V 
440. CERATOPHYLLUM. Gen. pi. 493. Willd. acL 
ac. berol. 1 798. p. 84. 
etemcrsum, 1, C. foliis verticillatis octonis dichotomo-bigeminis dorso 
dentatis spinulosis, floribus axillaribiis solitariis sessU 
libus, fructibus 3-spinosis. — Willd. sp. pi. 4. p. 405. 
Icon. Engl. hot. 947. 
In ditches and stagnant waters, floating r New York to 
Virginia. % . July, Aug. v. v. Flowers exceeding 
small. 
II. Dl-PENTJGYNIJ. 
441. CALLIGONUM. Gen.pl. 834. 
eanescens, 3 - C. dioicum, pulverulento-tomentosum ; foliis lanceola- 
tis, floribus axillaribus glomeratis in apice ramuiorum 
subspicatis, fructibus alatis, alis venosis cristato-den- 
tatis. 
In the plains of the Missouri, near the Big-bend. Pj . 
July, Aug. V. s. in Herb. Lewis. Flowers exceeding 
small. Goats delight to feed upon this shrub. 
442. DATISCA. Gen.pl.\5A3. 
hiria» !• r^aule birsuto, foliis pinnatis, foliolis basi confluenti- 
bus. — Willd. sp. pi. 4. p. 823. 
In Pensylvania, Kahn. %. +. Flowers yellow, small, 
in terminal panicles. I never had an opportunity of 
seeing this plant myself. 
443. MENISPERMUM. Gen. pi. 1544. ' 
mniderisc. 1. M. foliis peltatis cordatis siibrotundo-angulatis, racemis 
compositis. — Willd. sp. pi. 4. p. 824. 
