8CR0PHULARIACE.&. (FIGAYORT FAMILY.) 291 



7. V. serpyllifdlia, L. (Thtme-leaved Speedwell. Paul's 



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

 cending and simple (2' -4' high); leaves orate or oblong, obscurely erenate, 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. (Eu.) 



* * Annuals : floral leaves like those of the stem, so that the floicers appear axillary 

 and solitary : corolla shorter than the calyx. 



8. V. peregrina, L. (Neckweed. Purslane Speedwell.) Near- 

 ly smooth, erect (4' -9' high), branched; lowest leaves petioled, oral-Mong, 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. arvensis, L. (Corn Speedwell.) Simple or diffusely branched 

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

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

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



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

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

 shaped: pod flat : seeds cup-shaped. 



10. V. agkestis, L. (Field Speedwell.) Leaves round or ovate, cre- 

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

 cles; calyx-lobes oblong ; Bower small; ovary many-ovuled, but the nearly orbicu- 

 lar and sharply notched pod 1 - 2-seeded. — Sandy fields ; rare. (Adv. from Eu. ) 



11. V. Bcxbaumii, Tenore. Leaves round or heart-ovate, crcnately cut- 

 toothed (g'-l'long), shorter than the peduncles; flower large (nearly -\' wide, 

 blue); calyx-lobes lanceolate, widely spreading in fruit; pod obcordate4riangular, 

 broadly notched, 1G - 24-seeded. — Waste grounds, Philadelphia : rare. Milton, 

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



12. V. hederyEf6lia, L. (Ivy-leaved Speedwell.) Leaves rounded 

 or heart-shaped, 3 - 7 -toothed or lolled, shorter than the peduncles ; calyx-lobes some- 

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

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



17. BtJCIINERA, L. Blue-Hearts. 



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

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

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

 celled (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; the- 

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

 honor of J. G. Buchner, an early German botanist. ) 



