284 



623. MENTHA. 



cylindrical spike, p. Autumn. Avig. Eliine. 

 Parma. A variety of M. piperita, aceor cling 

 to Koch ; of M. hirsuta, according to Bert. 



10. piperita. L. ovato-oblong, acute, ser- 

 rate, witt rounded crenatures at base, nearly 

 hairless. Spike lax, obtuse, interrupted at base. 

 Base and Stalks of Cal. hairless, p. 8. Wet. 

 Bath. Norfolk. Ober Baden. Ratisbon. Tyrol. 

 Not in Italy. 



11. citrata. L. broadly ovate, hairless. 

 Whorls few ; upper united in an oblong head. 

 Stalks and Cal. hairless, p. 7, 8. Wet. 

 Cheshire, n. Wales. Bedford. It. 



b. All the Whorls distinct, not essentially 

 terminating the branch. L. all similar. 



12. prsecox. Whole Plant haii-less. L. 

 elliptic ovate. Whorls many-flowered, bracte- 

 ate. Cal. campanulate. p. 6. Wet. — Sole. 

 M. arvensis 6 of Benth. 



13. rubra. Plant nearly hairless. Stem 

 flexuose, weak, branched. L. ovate. Whorls 

 numerous, stalked, many-flowered. Bracts li- 

 near, cUiate. Teeth alone of the cylindrical 

 Cal. hairy, p. 9. Wet. M. arvensis S of 

 Benth. 



14. ^acilis. Stem and L. hairless, much 

 branched. L. lanceolate. Whorls many-flow- 

 ered. Bracts lanceolate. Cal. campanulate, 

 villous. Stalks smooth, p. 8, 9. Wet. 

 M. arvensis tj of Benth. 



15. arvensis. Stem and L. villous. L. 

 ovate. Whorls remote, many-flowered. Bracts 

 lanceolate-subulate. Cal. campanulate, villous. 

 StaUcs smooth, p. 6-9. Fields. M. ar- 

 vensis € and ^ of Benth. 



16. sativa. L. villous, ovate. Whorls 

 numerous, stalked, many-flowered. Cal. and 

 Stalks hirsute, p. 8, 9. Wet. According 

 to Smith, the throat of the Cal. is sometimes 

 hairy. 



B. Calyx two-lipfed. Throat villous within. 

 17- Pulegium. Prostrate, much branched. 

 L. stalked, ovate, green on both sides. Whorls 

 all remote, globose, many-flowered. Cal. his- 

 pid, p. 7, 8. Woods and marshy places, 

 occasionally. 



18. Requieni. Small, creeping, quite 

 smooth. Stems filiform. L. rounded, stallicd. 

 Whorls lax, few-flowered, p. 6, 7- Moist 

 mountains. Cors. Sard. 



Doubtful. 



19. augustifolia, Hosx. Erect, rough 



L. lineari-lanceolate, flat, denticulate above the 

 middle. Whorls approximate. Bracts lanceo- 

 late, cihate. Flower-stalks hispid. Throat of 

 Cal. hairy. — Benth. 



624. LYCOPUS. 



1. europseus. No rudiment of the upper 

 Stamen, Cal. with 5 acute teeth. L. stalked, 

 sometimes pinnatifid at base. Stem erect. 

 Runners 0. p. 7, 8. Wet banks. 



2. exaltatus. Rudiment of upper Stamen 

 capitate. Cal. with 5 acute teeth. L. stalked, 

 pinnatifid. Seeds equalling teeth of calyx. 

 p. 7, 8. Bamp. s. Er. It. Confluence of 

 Rhine and Maine. Great pool at Capricia in 

 Isl. Yegha. 



Tribe III. MGNARBEuE. 

 625. SALVIA. 



A. Lower ends of the Connectives of the two 

 Anthers turned upwards, and united to- 

 gether or approximate. Tube of Corolla 

 with an internal ring. 



i. Calyx with 4 or 5 nearly equal teeth. 



a. Teeth acu^te, hardly enlarged in the 

 fruit. Sp. 1-3. 



b. Teeth expanded at the end, especially 

 in the fruit. Sp. 4. 



ii. Upper Lip of Calyx nearly entire. 

 Sp. 5. 



B. Lower ends of Connectives bent down- 

 wards, expanded at the extremity, and 

 connate. No ring in Tube of Corolla. 



i. Upper Lip of Calyx truncate, with 3 



smaD, equal, erect teeth. Sp. 6, 7. 

 ii. Upper Lip of Calyx truncate. Teeth 



small, erect; the middle shortest. Sp, 



8-10. 

 iii. Upper Lip of Cal. with 3 very small 



connivent teeth. 



a. Helmet falcate, compressed. Sp. 1 1 

 -19. 



b. Heknet concave, nearly straight. 

 Sp. 20-25. 



C. Lower ends of Connectives directed down- 

 wards, lineal", connate'. Both Lobes of 

 the Style filiform. Sp. 26. 



D. Lower ends of Connectives remote, tooth- 

 like. Sp. 27. 



