SCROPHULARIACE^E. (FIGWORT FAMILY.) 333 



raceme hairy, fw-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 flowets 

 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 oj>posite (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 (|'-1' long), shorter than the peduncles; flower large (nearly £' wide, 

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

 broadly notched, 16 - 24-seeded. — Waste grounds. (Adv. fromEu.) 



12. V. heder^ef6lia, L. (Ivy-leaved Speedwell.) Leaves rounded 

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

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

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



17. BUCHNERA, 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. /Kamed 

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



