MENTHA. 263 



17. Teucbium. Stam. parallel, protruded between the lobes 

 of the Upper lip of the cor., inferior longest ; eells bursting 

 longitudmallyi .Cor. .with thei tipper lip deeply. hifid,' lobes 

 long ; lower lip S-ldb6d. CaJ. tubtdar, 5-toothed ; the teeth 



• equal or the upper 'one larger (2-lipped). i • 



18. _ AjuaA. Staml parallel, protruded far beyond the upper 

 lip of the cor., inferior longest; cells bursting longitudinafiy. 

 Cor: with ijiewpper lip very short, 'i-Xo^Q^; lower 3-lobed, 

 much longer than the upper. CaL avate-beUshaped, nearly 

 equally 5-cleft. 



Tribe I. MentlwideeR. 



1. Men'iha Linn. Mint.^ 



* Throat of the calyx naked. General ii^loresceuce detertninate. 



H. in spiked whorls or terminal clusters. 



,1. M. rotundifSlia (L.)j I. sessile roundly ovate crenate-serrate 

 wrinkled shaggy beneath, spikes linear cylindrical dense, hra^^ 

 lanceolate, ""fi-.-cal. not contracted at the mouth." — Sole, Menth. 

 S.^Visoid. St. 1 — 2 ft. high, L. usually with a cordate base. 

 Whorls of spike nearty all close together. . 'Scen,t acrid. — "Waste 

 places, rare. P. VIII. IX. Sounds-leaved Mint. E. S. 1. 



2. M. alopeeurmdes (Hull) ; I. subsessHe roundly, cordate-oval 

 serrate wrinkled hairy beneath, spikes conical-cylindrical, bracts 

 lanceolate. — M. rotimdifolia Sole 4^. M. velutina Bah. — L. not 

 felted beneath.— Arran and KiUin in S. P. VIII. IX. S. 



3. M. sylves'tris (L.) ; I. std)sessile ovate or lanceolate serrate 

 silky beneath,- spikes lmear-cylindjical,^ehse bracts subulate, 

 " fr.-cal. eonfeacted at the mouth."— /Safe I & 2. — L. sessile, lan- 

 ceolate or oblong, more or less hairy, not shaggy. Whorls of 

 spike nearly all close together. Scent sweet. ^Waste ground 

 in damp places. P! VUL IX. Horse Mint. E. S. 



t4. Jf. idr'idia (L.) ; I. glabrous .subsesdle lanceolate acute 

 serrate, «pfe« lax cylindrical, bracts subulate.— r&fe, 6. — Cor, 



flabtous. Whorls of the spike rather distant. L. glandular 

 eneath. — ;S. crispa (Benth.) ; 1. deeply cut and crisped. — In 

 marshy places, rare. /3. Glen Farg, Perthshire. Hooker. P. 

 Vni. Spear Mint. ' ,,E. S. 



t5, M. piperita (Sm.) ; I. stalked ovata-lanceolate or oblong 



^ See Mr. Baker's valuable paper in Seem. J. of 5. iii. 233. 



