SCROPHULARIACE^E. (FIGWORT FAMILY.) 333 



raceme hairy, few-flowered, crowded ; pod obovate, notched. Alpine summits of 

 the White Mountains of New Hampshire. (Eu.) 



7. V. serpyllifdlia, L. (THYME-LEAVED SPEEDWELL.) Much branched 

 at the creeping base, nearly smooth ; branches ascending and simple (2' - 4' high) ; 

 leaves ovate or oblong, obscurely crenate, the lowest petioled and rounded, the upper 

 passing into lanceolate bracts ; raceme loose ; pod rounded, broader than long, 

 obtusely notched. Roadsides and fields : common : introduced and indigenous. 

 May -July. Corolla whitish, or pale blue, with deeper stripes. (Eu.) 



# * Annuals or biennials: floral leaves like those of the stem, so that the flowers 

 appear to be axillary and solitary : corolla shorter than the calyx. 



8. V. peregrina, L. (NECKWEED, PURSLANE SPEEDWELL.) Nearly 

 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. ARVENSIS, L. (CORN 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 Eu.) 



5. Annuals or biennials (prostrate-spreading, hairy) : stem-leaves opposite (all peti- 

 oled), the upper alternate and bearing solitary peduncled flowers in their axils : 

 corolla wheel-shaped: pod flat: seeds cup-shaped. Rare or local immigrants, 

 and only near the coast, from Massachusetts to Virginia. 



10. V. AGRESTIS, 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 ; flower small ; ovary many-ovuled, but the nearly orbicu- 

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



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

 toothed ('-!' long), shorter than the peduncles; flower large (nearly ^' wide, 

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

 broadly notched, 1 6 - 24-seeded. Waste grounds. (Adv. from Eu.) 



12. V. HEDER^r6LiA, L. (IVY-LEAVED SPEEDWELL.) Leaves rounded 

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

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

 places. April -June. (Adv. from Eu.) 



17. BTJCHNERA, L. BLUE-HEARTS. 



Calyx tubular, obscurely nerved, 5-toothed. 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-parasitic), 

 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.) 



