ON THE ENGLISH MINTS. 351 
M. 
Stem slightly haiiy, only the lowest leaves slightly stalked, n shape 
ovate-obloiig, rather rounded below and the point bluntish, tlie lowest 
from li-2 inches long by f-1 inch broad, the upper surface dull green 
and covered all over with short hairs, the lower surface paler and hairy 
principally in the veins ; the whorls all above the centre of the stem, 
the higher ones with leaves not much exceeding them; calyx-tube and 
teeth of var. 3, but slightly and shortly hairy. 
This is a plant often found as a weed of cultivated ground, with a 
diffuse habit of growth, wiry purplish slightly hairy stems, short, sub- 
campanulate, often naked calyx-tube, inconspicuous hairless flowers, 
and a more aromatic scent than any of the verticilhite forms except Jf. 
cardiaca. According to Dr. Wirtgen's plan of classification, these two 
and our Jf. rubra go with citrata^ viridls, qmA piperita, and M. arvensia 
and aativa jvith aquatica and pubescens. Of the two Linnoean speci- 
mens one is our var. 1^ but the other a less hairy than usual form of 
M. arvensls. Whether M, pratenm of Sole be rightly placed here, I 
know too little of it to speak with any degree of confidence. The 
other forms are invariably truly comose. The M. rnhra of Hudson in- 
cludes both this and cardiaca along with our plant, but they were all 
three recognized and distinguished in England long before his time by 
Dale and Buddie. The M, variegata of Sole (t. 19), M. eleganSy 
Lejeune, is a garden form of this with variegated leaves. I have seen 
AT. gentilis, as here defined, from 1, 2, 5, 7, 9, 10, 11, 12, 13, of Mr. 
Watson's provinces, and it is figured from 4 in * English Botany.* 
XIII. M, arvensis^ Linn., Smith, Kuch, Fries, Wirtgen. 
Var. 1. M, arvensts. Sole, t. 13; Borcau, 195S; Wirtgen, nn. 55, 
56,58, 86, 88-91, 95-99. 
Stem 1-2 feet high, the lower part often procumbent, the uppt-r 
loosely ascending, furnished when at all luxuriant with loosely-spread- 
ing branches, densely clothed, especially above, with deflexed hairs. 
Leaves stalked, the stalks of the lowest fully | inch long and densely 
hairy, the blade full green and more or less densely haiiy all over above, 
paler and thinly hairy all over beneath, the lower ones measuring about 
2 inches long by 1 broad, broadly ovate with a decurrent half, the ser- 
rations bluntish and not deep. Whorls often beghming below the 
middle of the stem, the lowest ^-f inch apart, the highest with leaves 
2-4 times their length, and the upper pair or two usually flowerless. 
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