CUNILA. XCIII. LABIATE. 421 



10-ribbed, the throat closeAwith hairs ; upper lip of the corolla flat, 

 emarginate, shorter than IR lower. 



1. T. VULGARIS. Garden Thyme. Si. procumbent at base, erect; Ivs. revo- 



other species, and is peculiarly attractive to bees. Blossoms in summer. 



2. T. SERPYLLUS. Wild Thyme. Mother of Thyme. 



St. decumbent; Ivs. flat, elliptical, obtuse, ciliate at base; fls. capitate. 

 7J. Mass., N. Y. and Penn. An aromatic plant, similar to the preceding, but 

 milder and rather more pleasantly flavored. Sterns suffruticose, wiry, slender 

 and wavy, with leafy, downy and ascending branches, each terminating in a 

 small, dense, oblong head of purple flowers, much frequented by bees. Leaves 

 entire, petiolate, punctate, smoothish, ciliate. Corolla purple, spotted. June. 

 Cultivated and naturalized. 



14. S A T L T R E J A. 



Arabic tsaiur the general name for labiate plants. 



Calyx tubular, 1 0-ribbed ; segments of the bilabiate corolla nearly 

 equal ; stamens diverging, scarcely exserted. 



S. HORTENSIS. Summer Savory. Si. branching; Ivs. linear-oblong, entire, 

 acute at the end; ped. axillary, cymose. 7|_ Native of Italy. Cultivated as a 

 culinary aromatic. Stem branching and bushy, lf high, woody at base, fre- 

 quently changing to purple. Leaves numerous, small and narrow, with axil- 

 lary cymes of pink-colored flowers. Calyx about as long as the corolla. Jl. Aug. $ 



15. HYSSOPUS. 



Hebrew ezol; Arabic azzof; Eng. hyssop. 



Upper lip of the corolla erect, flat, emarginate, lower lip 3-parted, 

 the middle segment largest, tube about as long as the calyx ; stamens 

 exserted, diverging. 



H. OFFICINALIS. Hyssop. DCS. linear-lanceolate, acute, entire, sessile ; cal. 

 teeth erect; fls. in racemose, secund verticils, middle division of the corolla 2- 

 lobed, entire. Ti The common hyssop is a native of S. Europe, often met with 

 in our gardens, being cultivated for its reputed medicinal properties. It is a 

 handsome plant, growing in tufts, 2f high, with delicate foliage and bright blue 

 flowers. July. 



16. COLLINSONIA. 



Name in honor of John Collinson, an English botanist. 



Corolla exserted, campanulate-ringent, upper lip in 4 subequal 

 lobes, lower lip longer, declined, fimbriate ; stamens 2, (rarely 3) 

 much exserted, divergent. 



C. CANADEXSIS. Horse Balm. 



Lvs. ovate, acuminate, coarsely serrate, petiolate. glabrous ; teeth of the cal. 

 subulate, shorter than the tube ; rac. paniculate, terminal. 7J. A tall herb with 

 large leaves and yellow flowers, woods and fields, Can. to Ky. and Car. Stem 4- 

 sided, 3 4f high, smooth or a little pubescent. Leaves thin, 6 8' long and 3 4' 

 wide. Flowers ' in a large, compound raceme, with opposite branches and 

 pedicels. Corolla greenish-yellow, the lower lip elongated and fringed. Style 

 and stamens very long. Flowering in summer. 



17. CUNlLA. 



The ancient Roman name for pennyroyal. 



Calyx 10-ribbed, equally 5-toothed. throat densely villose ; upper 

 lip of corolla flat, emarginate : stamens 2, erect, exserted, distant. 

 C. MARIANA. (Ziziphora. R. <$ &) Dittany. 

 Lvs. ovate, serrate, subsessile ; cymes pedunculate, corymbose, axillary and 



