Ct.ASS XIV. ORDER I.] MENTHA. 797 



crenated, the upper five lobed ; peduncles opposite the leaves ; calyx 

 reflexed, as long as llie petals; carpels in a round head, beaked, piano- 

 compressed, spinoso-tuherculaled, the margin smooth. 



En^Iisli Botany, t. 120. — English Flora, vol. ill. p. 53. — Hooker, 

 British Flora, ed. 4. vol. i. p. 220. — Lindley, Synopsis, p. 11. 



Root of numerous branched fibres, Slfun branched, prostrate, round, 

 striated, smooth or hairy, leafy, from six to eighteen inches long, 

 hollow. Leaves a pale green, mostly clothed with soft spreading hairs, 

 petiolated, the lower ones roundish, heart-shaped, three or five lobed 

 and crenated, the upper ones of three or five entire lobes. Floicers 

 not very numerous, solitary, opposite to the leaves, peduncle short, 

 round. Calyx as long as the petals, reflexed, hairy. Petals narrow, 

 pale yellow, obovate, often wanting. Carpels in a round head, ob- 

 liquely rotundate, piano-compressed, with a smooth green margin, 

 terminating in a broad flat pointed beak, the disk tuberculated, ter- 

 minating in a more or less stout spine. 



Habitat. — Corn fields and sandy places, not common ; about London, 

 Norwich, Nottingham, Lincoln, and the Soulh-West of England. 

 Cork, Hovvth, and Dublin, Ireland. 



Annual J flowering in May and June. 



CLASS XIV. 

 DIDYNAMIA. 



(Four Stamens, two longer than the other two.) 



ORDER I. 



GYMNOSPER'MTA. (Fruit apparentlt naked.) 



GENUS I. MENTHA.— Linn. Mint. 

 Nat. Ord. Labia 't.e. Jess. 



Gen. Char. Calyx equal, five toothed, its mouth naked, or rarely 



villous. Corolla funnel-shaped, the limh four-cleft, nearly equal, 



the upper segment emarginate, its tube short. Stamens distant. 



Anthers with parallel cqWs, filaments naked. —Name from Mintke, 



a daughter of Cocytus, who was changed by Proserpine into a 



herb, called by the same name, mint. Ovid. Met. 



* Mouth of the calyx naked. 



1. M. sylvesHris, Linn. (Fig. 912.) Horse Mint. Stem erect; 



leaves nearly sessile, ovate lanceolate, or oblong, acute, unequally 



5 J. 



