Veronica 



SCROPHULARIACEAE 



Veronica 



about equal to the lobes .... 3. 

 Calyx lobes not enlarged in fr., 

 very short, or the calyx cleft 

 to the base. 

 Fls. small, not over 5 mm. in 



diam 4. 



Fls. large, up to 20 mm. in diam. 5. 

 GG. Lvs. serrate or crenate. 



Erect plants with square stems, 0.5-1 m. 



tall 6. 



Decumbent or ascending plants, 0.1-0.3 m. 



tall 7. 



FF. Lvs. pinnately cleft: plants viscid-pubescent 8. 



EE. Calyx with 3-5 broad wings 9. 



DD. Plants turning black in drying. 



Calyx tubular, conspicuously ribbed, 1-2 cm. long 10. 

 Calyx not conspicuously tubular or ribbed; the un- 

 cleft portion not over 1 cm. long. 

 Seeds 4 or fewer in each capsule: stems slender, 



freely brg. : lvs. usually entire 11. 



Seeds numerous: stems stout, sparsely brg.: lvs. 



usually serrate, cleft or divided 12. 



CC. Lvs. alternate. 



Fls. small, in axillary aments; calyx and corolla equally 

 4-cleft; stamens 2, exserted: stems wandering or 



prostrate 13. 



Fls. large, in terminal racemes on the main stem or 



branches; calyx and corolla 5-lobed or -cleft; stamens 



4, included: stems erect, simple or brg. 



Stems usually simple: plants glabrous, pubescent or 



lanate, not viscid: fig. racemes green-bracteate, 



but not leafy; calyx about equally cbft 14. 



Stems brg. from the base: plants viscous-villous: fig. 

 racemes leafy; posterior segment of the calyx 



elongated 15. 



AA. Plants woody, becoming trees 16. 



Monochasma 



Lindernia 

 Antirrhinum 



Scrophularia 



Mazus 



Phtheirospermurn 



Torenia 



Siph onostegia 



Melampyrum 

 Pedicularis 



Botryopleuron 



Digitalis 



Rehmannia 

 Pauloivnia 



1. Veronica Linn. Speedwell TR^gg (Shui K'u Mai Shu) 



Herbs (ours), shrubs or small trees, with opposite (rarely alternate or whorled) 

 lvs. and terminal or axillary, racemose or solitary fls. ; corolla with spreading lobes, 

 not 2— lipped; stamens 2, exserted: capsule compressed, 2-grooved. 250 species, in 

 temperate and cold regions; over 30 in China. (Named for St. Veronica.) 



aa. 



Key to the Species 



Stems, or some of them, prostrate: fls. axillary. 



Pedicels shorter than sepals: feeds many: plant erect at first, 



becoming diffuse 1. V. arvensis 



Pedicels longer than sepals: seeds few: plants repent. 



Fls. not over 5 mm. in diam., pink: capsules bi-globose, turgid 2. V. didyma 

 Fls. about 10mm. in diam., blue with white center: capsules 



flattened, notched 3. V. persica 



Stems erect, 



350 



