DIDYNAMIA ANGIOSPERMIA. Ruellia. 
teis lanceolatis brevibus, calycis laciniis subulatis tubo 
corollae quadruplo brevioribus. 
Near Savannah, Georgia. J/. July, v, s. in Herb» 
Enslen, 
5. R. glabriuscula, diffusa, radicans j foliis in petiolum lon- 
giuscule angustatis ovalibus obtusis, floribus subsessi- 
libus, capsulis linearibus. Mich.Ji. amer, 2,p. 23, 
In Georgia and Florida. Michaux. -f-. 
505. BUCHNERA. Gen. pl. 1035. 
l.B. caule simplici, foliis lanceolatis subdentatis asperis 
trinervibus, spicis remotifloris. — IVilld, sp, pl, 3. 
p. 334. 
On dry sandy hills : Pensylvania to Carolina j rare. %, 
July. V, V. Flowers deep blue. 
506. ANTIRRFIINUM. Gew. p/. 1007. 
1. A. procumbens, pilosum ; foliis alternis hastatis integer- 
rimis, pedunculis solitariis longissimis. — Willd. sp. 
pl.S.p. 234; 
Icon. FL dan. 426. Engl. lot. 692. 
Jn sandy fields : Pensylvania to Virginia. G • July, 
Aug. V. V. Flowers yellow mixed with purple. 
2. A. erectum, glabrum j foliis sparsis lanceolato-linearl- 
bus confertis, spicis terminalibus densifloris, calyci- 
bus glabris calcare brevioribus. — Willd. sp. pl. 3. 
p. 253. 
Icon. FI. dan. 982. Engl. lot. 658. 
In fields and dry hills, near houses 5 frequent. % . June 
— Aug. V. V. Flowers large, yellow. This fine- 
looking plant is one of the worst and most trouble- 
some weeds in several parts of Pensylvania and Virginia. 
3. A. assurgens, glabrum, simplicissimum ; foliis sparsis 
erectis angusto-linearibus obtusis remotis, floribus ra- 
cemosis, stolonibus procumbentibus. — Willd. sp, pl, 3, 
p. 255. 
Icon. Fent, hort. cels 4p. 
In low grounds : Canada to Carolina. G* June— Aug. 
V. V. Flowers small, purple. 
4. A. pusillum, simplex, glabrum ; foliis oppositis linearibus 
acutis, floribus axillaribus brevi-pedunculatis, calyci- 
bus campanulatis. 
421 
humis trata. 
americana. 
Elatine. 
Linaria. 
canadense. 
tenellum. 
