2/0 SYSTEMATIC BOTANY. 



1. G. VIRGINIANA ( Virginian Hedge Hyssop}. Nearly or quite smooth ; 

 stem low, erect, simple or branching ; leaves lanceolate or oblong-lanceolate, 

 sessile, opposite, slightly serrate, tapering at base ; flowers small, on axillary 

 peduncles ; corolla whitish, generally with a pale yellow tube ; sterile fila- 

 ments none. In muddy grounds, 3'-8' high. July-August. 



2. G. AUREA (Golden Hedge Hyssop). Smooth ; stem decumbent at base, 

 erect above, square, simple, or with ascending branches ; leaves oblong-lan- 

 ceolate, nearly entire, sessile ; flowers solitary, golden yellow ; sterile fila- 

 ments 2, minute. Common on the borders of ponds, 3'-8' high. August- 

 September. 



8. Ilysanthes. Calyx 5-parted. Corolla 2-lipped ; upper lip short, 

 erect, 2-cleft ; lower large, spreading, 3-cleft. Fertile stamens 2, in- 

 cluded, posterior. Sterile stamens 2, anterior, forked. Style 2-lipped 

 at apex. Capsule many-seeded, y. 



I. GRATIOLOIDES (False Pimpernel). Smooth ; stem ascending, branch- 

 ing, low ; leaves opposite, sessile, ovate or oblong, sparingly serrate, more 

 or less obtuse, the lower ones sometimes obovate and tapering at base ; flow- 

 ers small, pale blue, solitary, on axillary, bractless peduncles ; corolla erect. 

 In wet grounds, 2 '-4' high. July-August, n 



9. Digitalis. Calyx 5-parted. Corolla campamilate, ventricose. 

 Limb of 5 nearly equal lobes. Capsule ovate, 2-celled, 2-valved, with 

 a double dissepiment. 



D. PURPUREA (Foxglove}. Stem erect ; leaves oblong, rugose, downy, 

 crenate, lower ones crowded, petiolate ; flowers large, crimson, beautifully 

 spotted within, in a long, showy, i-sided raceme ; calyx-segments ovate-ob- 

 long ; corolla obtuse, upper lip entire. July. 



10. Veronica. Calyx 4-parted. Corolla rotate or tubular, deeply 

 4-cleft. Stamens 2, exserted, one on each side of the upper lobe of the 

 corolla. Style entire. Stigma single. Capsule compressed, 2-fur- 

 rowed. 



1. V. VIRGINICA (Culver's Physic}. Mostly smooth ; stem erect, simple, 

 straight, tall ; leaves lanceolate, petiolate, acute, or acuminate, finely serrate, 

 in whorls of 4-7 ; flowers white, in panicled spikes ; corolla tubular, pubes- 

 cent within ; stamens and style twice as long as the corolla. In rich, low 

 grounds, 2-6 feet high. July. 



2. V. AMERICANA (Brooklime}. Smooth and rather fleshy ; stem de- 

 cumbent at base, and then erect ; leaves ovate, or oblong, serrate ; flowers 

 small, in opposite, loose racemes, on slender, spreading pedicels twice longer 

 than the bracts ; corolla pale blue, marked with brownish lines ; capsule tur- 

 gid, emarginate. In wet grounds, 6'-i2' high. June-August. 



3. V. SERPYLLIFOLIA (Common Speedwell). Nearly or quite smooth ; 

 stem low, prostrate, much branched at base, with ascending, simple branches ; 

 leaves ovate or oblong, obtuse ; lowest roundish, petiolate ; upper sessile, 

 entire bracts ; flowers in loose, bracted, terminal racemes, elongated in fruit ; 



