SCEOPHULAKIACE^. (PIGWOBT TAMILT.) 291 



7. V. serpyllifdlia, L. {Tbyxs-ixxvsv Speedwell. Paul's 

 Betont.) Much branched at the creeping base, nearly smooth ; branches as- 

 cending and simple (2' -4' high); lea/oes ovate or oblong, obscurely ci-enate, the 

 lowest petioled and rounded, the upper passing into lanceolate bracts ; raceme 

 loose; pod rounded, broader than long, obtusely notched. — Road-sides and 

 fields; common: introduced and indigenous. May -July. — Corolla whitish, 

 or pale blue, with deeper stripes. (Bu.) 



* * Annvals : flared leaves like those of the stem, so that the flowers appear axillary 

 and solitary: corolla shorter than the calyx. 



8. V. pcregrlna, L. (Neckwebd. Pubslane Speedwell.) Near- 

 ly smooth, erect (4' -9' high), branched ; lowest leaves petioled, oval-oblong, toothed, 

 thickish ; the others sessile, obtuse ; the upper oblong-linear and entire, longer 

 than the almost sessile (whitish) flowers ; pod orbicular, slightly notched, many- 

 seeded. — Waste and cultivated grounds; common: appearing like an intro- 

 duced weed. April - June. 



9. V. ARV^NSis, L. (CoBN Speedwell.) Simple or diffusely branched 

 (3' -8' high), hairy ; lower leaves petioled, ovate, crenate; the uppermost sessile, 

 lanceolate, entire ; peduncles shorter than the calyx ; pod inversely heart-shaped, 

 the lobes rounded. — Cultivated grounds ; rather common. (Nat. from En. ) 



§ 5. Annuals {prostrate-spreading, hairy) : stem-leaves opposite (all petioled), the 

 upper alternate and bearing solitary peduncled flowers in their axils : corolla wheel- 

 shaped : pod flat : seeds cup-shaped. 



10. v. AGii:6sTis, L. (Field Speedwell.) Leaves round or ovate, cre- 

 nate-toothed ; the floral somewhat similar, about the length of the recurved pedun- 

 des ; calyx-lobes oblong ; flower small ; ovary many-ovuled, but the nearly orbicu- 

 lar sharply notched pod 12-20-seeded. — Sandy fields ; rare. (Adv. from Eu.) 



11. V. BoXBAiTMii, Tenore. Leaves round or heart-ovate, crenately cut- 

 toothed (f- 1' long), shorter than the peduncles; flower large (nearly J' wide, 

 blue) ; calyx-lobes lanceolate, widely spreading in fi-uit; pod obcordate-triangular, 

 broadly notched, lG-24-seoded. — Waste grounds, Philadelphia : rare. Milton, 

 Massachusetts, D. Murray. (Adv. from Eu.) 



12. V. HEDER.a5F6LiA, L. (IvY-LEAVED Speedwell.) Leaves rounded 

 or heart-shaped, 3 - 1 -toothed or lolied, shorter than the peduncles ; calyx-lobes some- 

 what heart-shaped; flowers small; pod turgid, 2-l6bed, 2-4-seeded. — Shaded 

 places, Long Island to Pennsylvania; scarce. April-Juno. (Adv. from Eu.) 



17. BUCHNERA, L. BLnB-HEAUxs. 



Calyx tubular, obscurely nerved, 5-toothcd. Corolla salver-fonn, with a 

 straight or curved tube, and an almost equally 5-cleft limb ; the lobes oblong or 

 wodgc-obovate, flat. Stamens 4, included, approximate in pairs : anthers one- 

 coUod (the other cell wanting). Style club-shaped and entire at the apex. Pod 

 2-valved, many-seeded. — Perennial rough-hairy herbs (doubtless root-parasites), 

 turning blackish in drying, with opposite leaves, or the uppermost alternate ; tlie 

 flowers opposite in - terminal spike, bracted and with 2 bractlets. (Named in 

 honor of J. G. Buclmer, an early Giennan botanist.) 



