ORDER XC. SCROPHULARIACEiE. 459 



nate, linear, lanceolate. Flowers solitary, axillary. Corolla shorter than 

 the calyx. Stamens very short. — White. 0. Feb. — March. "Wet 

 lands. Very common. 6 — 8 inches. 



4. V. serpyllifo'lia, (L.) Stem decumbent, sometimes creeping, pu- 

 bescent, slightly angled. Leaves ovate, on short petioles, decussate, 

 glabrous, crenate. Flowers in terminal, leafy racemes. Capsule emar- 

 ginate. — Pale blue. U- May — June. 



5. V. agres 'tis, (L.) Stem procumbent, hairy. Leaves cordate, al- 

 ternate, on short petioles, notched. Flowers solitary, axillary, on hairy 

 peduncles. Calyx deeply parted. Seeds 8 in a cell. — Blue. %%. Jan. 

 — April. Common in the low country. 



6. V. anagal'lis, (L.) Stem succulent, erect. Leaves lanceolate, 

 serrate, varying in width. Flowers in long, opposite racemes. — Blue. 

 If. May — June. In damp places. 1 — 2 feet. 



7. V. arvex sis, (L.) Stem procumbent, hairy, with assurgent branch- 

 es. Leaves opposite, cordate-ovate, on short petioles, slightly dentate ; 

 the upper ones usually sessile, lanceolate. Floivers axillary, solitary, on 

 short peduncles. Corolla shorter than the calyx. Stamens short.— 

 Pale blue. 0. May — June. Damp soils. Common. 



Genus XII.— BUCHNE'RA. L. 13—2. 

 (In honor of J. G. Buchner.) 



Calyx cylindrical, 5-toothed. Corolla tubular, a little curved, 

 with the border equally 5-cleft ; segments obcordate. Stamens 

 4, didynamous. Capsule 5-celled. 



1. B. America'na, (L.) Stem simple, terete, scabrous, and hairy. 

 Leaves lanceolate, sessile, opposite, dentate. Floioers in spikes. Ca- 

 lyx slightly curved, bilabiate, upper lip 3-cleft, the lower bifid. Corolla 

 pubescent. Stamens short. — Purple. U. Through the summer. Damp 

 soils. Common. 1 — 2 feet. 



2. B. eloxga'ta, (Sw.) Stem scabrous, simple or sparingly branched. 

 Radical leaves obovate ; lower ones oblong, few-toothed, middle ones 

 lanceolate, upper ones linear, entire. Spikes elongated; bracts ovate, 

 or ovatedauceolate ; calyx erect. — Blue or white. 



Genus XIII.— SEYME'RIA. L. 13—2. 

 (Tn honor of Henry Seymer.) 



Calyx deeply 5-cleft. Corolla campanulate, equally 5-cleft. 

 Stamens 4, inserted into the throat of the corolla. Capsule 

 ovate, ventricose, 2-celled, 2-valved, many-seeded, dehiscing at 

 the summit. 



1. S. tknuifo'lia, (Pursh.) Stem erect, glabrous, much branched, 

 rough. Leaves opposite, sessile, compoundly pinnatifid, with filiform 

 segments. Flowers axillary, on rather short peduncles. Calyx with 

 subulate segments. Corolla with short tube, pubescent. — Yellow and 

 purple. $. Aug. — Sept. Low country. 3 — 4 feet. 



J. S. pectin a'ta, (Pursh.) Stem much branched, vi-cidly pubescent, 

 obtusely Angled. Lower leaves pectinately pinuatifid, with the seg- 

 ments linear, entire; upper ones smaller, and often entire. Flowers on 

 axillary peduncles. Corolla with a short tube. — Yellow. <3>- Aug. 

 Liddle Georgia. 2 — 4 feet. 



