94 
M. citrata. Bergamot Mint. Pig. 931. 
Leaves cordate-ovate, acute, sharply serrated, smooth, stalked. Whorls 
distant. Calyx glabrous. Wet places; rare. 1 ft. Perenn. Aug. 
and Sept. Purple, (f) E. B. 1. 1025. E. B. 2. 806. H. 
Am. 319. Bab. 253. Lind. 200. 
M. hirsuta. Water Mint. Hairy Mint. Fig. 932. 
Leaves ovate, serrated, hairy, stalked. Flowers in dense heads. Calyx 
hairy. Wet places ; common. 1-2 ft. Perenn. Aug. and Sept. Pale 
purple, (f) E.B. 1.447. E.B. 2.807. H.^ Am. 319. Bab. 253. 
Lind. 200. 
M. sativa. Pig. 933. 
Leaves ovate or ovate-lanceolate. Flowers in dense, distant whorls. 
A variety of hirsuta. Wet places. 1-2 ft. Perenn. Aug. and 
Sept. Pale purple, (f) E. B. 1.448. E. B. 2. 808. H. fy Am. 319. 
Bab. 253. Lind. 200. 
M. acutifolia. Sharp-leaved Mint. Fig. 934. 
Leaves ovate-lanceolate, tapering at each end. Flowers whorled. 
Calyx hairy all over, hairs of the pedicels spreading. Wet places ; rare. 
1-2 ft. Perenn. July and Aug. Reddish purple. (|) E.B. 1.2415. 
E. B. 2. 809. H. Am. 320. Bab. 253. Lind. 200. 
M. rubra. Red Mint. Fig. 935. 
Stem upright, zigzag. Leaves ovate, sharply serrated, glabrous. 
Flowers whorled. Pedicels and lower part of the calyx smooth. Watery 
places. 2-6 ft. Sept. Purplish red. (f) E. B. 1. 1413. E. B. 
2.810. H. fyArn. 320. Bab. 253. Lind. 200. 
M. gentilis. Bushy Red Mint. Fig. 936. 
Stem much-branched, spreading. Leaves ovate, hairy, stalked. 
Flowers whorled. Pedicels smooth. 1-2 ft. Perenn. Aug. and 
Sept. Reddish purple. (j) E. B. 1. 2118. E. B. 2. 811. H. fy 
Am. 320. Bab. 253. Lind. 201. 
M. gracilis. Narrow-leaved Red Mint. Fig. 937. 
Stem upright, much-branched. Leaves ovate-lanceolate, acute. A 
variety of gentilis. 1 ft. Perenn. Sept. Reddish, (f) E. B. 
1. 449. E. B. 2. 812. H. Am. 320. Bab. 253. Lind. 199. 
M. arvensis. Corn Mint. Fig. 938. 
Stem branched, spreading. Leaves ovate, hairy. Flowers whorled. 
Calyx bell-shaped, hairy. Corn-fields. 8-10 in. Perenn. July- 
Sept. Purple, (f) E.B. 1.2119. E.B. 2.813. H. fyArn. 320. 
Bab. 254. Lind. 200. 
M. agrestis. Field Mint. Fig. 939. 
Stem erect. Leaves heart-shaped, serrated, rugged. A variety of 
arvensis. Corn-fields. 8-10 in. Perenn. Aug. and Sept. Purple. 
(|) E. B. 1. 2120. E. B. 2. 814. H. #' Am. 320. Bab. 254. 
Lind. 200. 
M. Pulegium. Penny-royal. - Fig. 940. 
Stem prostrate. Leaves ovate, downy. Flowers whorled. Calyx 
downy all over. Wet places; naturalized. 4-8 in. Perenn. Aug. 
and Sept. Pale purple, (f) E.B. 1. 1026. E. B. 2. 815. H. & 
Am. 320. Bab.2bA. Lind. 201. 
