DIANDRIA MONOGYNIA. 293 



V. serpyllifolia : raceme elongated, many-flowered; leaves ovate, 

 crenate, smooth ; capsule as long as the style ; stem ascending. 



HAB. Meadows. May. ^. Stem procumbent at base, Jl. pale blue. 



V. Beccabunga: racemes opposite; leaves elliptical, obtuse, on short 

 petioles, subserrate, glabrous ; stem procumbent, rooting at the 

 base. 



EIAB. In water ; rare. June. Tj.. 1 ft. high, terete ; racemes axillary, 

 many-flow. ; corol. blue ; caps, inflat. 



V. Anagallis racemes opposite ; leaves lanceolate, serrate ; stem 

 erect. 



HAB. In water. June Aug. 7|.. 1 \ ft. high, subquadrang. ; peduncl. 

 subpubescent ; Jl. pale blue. 



V. scutellata: racemes lateral and alternate; (rarely opposite) pedi- 

 cels divaricate ; leaves linear, somewhat toothed ; stem nearly 

 erect. 



HAB. in water. May June. 1\.. Root creeping ; stem weak ; some- 

 what branched ; Jl. pale blue, or Jlesh-colored. 



V. arvensis : flowers solitary, subsessile ; inferior leaves petiolate, 

 cordate, ovate, serrate ; stem leaves crenate ; floral ones lanceolate, 

 sessile, longer than the pedicels ; segments of the calyx unequal j 

 capsule obcordate, compressed. 



HAB. Dry hills and fields. Apr. Aug. . Stem assurgent, 2 6 in, 

 high ; Jl. pale blue ; caps, compres. 



V. agrestis: flowers solitary, pedicellate, leaves petiolate, cordate- 

 ovate, serrate, segments of the calyx equal, ovate, hairy ; stem pro- 

 cumbent, pubescent. 



HAB. Sandy fields. May. <v). Branched, diffuse; Jl. blue, veined; 

 capsule didymous, subventricose. 



V. peregrina : flowers solitary, sessile ; leaves oblong, serrate, rather 

 obtuse ; stem erect. 



HAB. Wet, clayey soils. May. July. <v). Smooth; stem branched at 

 the base; rad. leaves subp etiolate ; Jl. small white; caps, obcor- 

 date. 



5. LEPTANDRA. 



L. mrginica : leaves verticillate, in fours or fives, lanceolate, serrate, 



petiolate. 

 HAB. Woods and fertile valleys. July Aug. %.. Stem 3 4ft. high ; 



Jl. white, in a long terminal spike. 



6. GRATIOLA. Hedge-hyssop. 



G. aurea : smooth ; leaves linear-oblong ; half embracing the stem, 

 obscurely toothed; leaves of the calyx equal; sterile filaments mi- 

 nute. 



HAB. Wet, sandy places, and in woods. Aug. Sept. QJ.. Root creep- 

 ing ; stem 8 12 in. ; Jl. yellow. 



Gr. mrginica : stem pubescent, assurgent, terete ; leaves smooth, lan- 

 ceolate, sparingly dentate-serrate, alternate and connate at the base ; 

 leaves of the calyx equal ; sterile filaments wanting. 



HAB. Wet meadows. July Aug. %. 68 in., branched at the 

 base ; leaves smooth ; cor. white ; tube yellow. 



7. LINDERNIA. 



L. dilatata : leaves dilated at the base, amplexicaul, remotely toothed; 

 peduncles longer than the leaves. 



