26 
Mentua borealis, Mich. Horse Mint. p. July, Aug. 2(. 9—18 in. 
Along streams and in wet places. 
M. piperita, Linn. Peppermint. p. Aug. 2;. 1—2 ft. The differ- 
ent species are more or less aromatic and diaphoretic; their pro- 
perties depend on volatile essential oils, which are stimulant and 
rubefacient. 
MeEnvaAnTHES trifoliata, Linn. Buck Bean. w. May. 2(. 8—12 in. 
Sphagnous swamps. Root a good tonic, and, in large doses, ca- 
thartic. 
Microsty.is ophioglossoides, Nuttall. g. July. 2. 4-8 in. Shady 
woods. 
Mimuuus ringens, Linn. b-p. July, Aug. 2{. 1—2 ft. Wet grounds. 
M. alatus, Aiton. b. Aug. 2{. 2 ft. Near the junction of Cham- 
plain and Erie canals. Wet. 
MitcHELLa repens, Linn. Partridge-berry. w. June. 2{. Small, 
creeping, and evergreen. Woods. Berries red. 
MiTevxa diphylla, Linn. w. Ap. May. 2f. 8—12 in. Rocky ravines. 
Motuveo verticillata, Linn. w. July—Sept. %. Prostrate. Dry 
banks of the river and roadsides. 
Momorpica echinata, Muhl. w. Aug. 3. Climbing. Islands about 
Troy and on banks of the river, in moist situations. Fruit large, 
nearly oval, 1—2 in. long. 
Monarpa didyma, Linn. 7. June. 2. 18—24 in. 
Monotropa uniflora, Linn. Indian pipe. w. June. 2(. 5—8 in. Sha- 
dy woods and ravines; generally in small clusters. Whole plant 
white and leafless. 
Morus rubra, Linn. Red Mulberry. May. 5. A small tree. Half 
a mile east of the river dam at Troy. Berries edible. 
MyriorHyiiu verticillatum, Linn. July. 2¢. Ina pond near Sche- 
nectady. 
Nasturtium palustre, De Cand. y. July. 3%. 18 in. Wet. 
N. amphibium, Brown. y. June, July. 2£. 1—2 ft. Wet. 
NemopanTtHEs Canadensis, De Cand. Ap. &. 5—10 ft. Swamps. 
Berries dark red. 
Neveta cataria, Linn. Catnip. r-w. June—Sept. 2(. 2—8 ft. Road- 
sides. Stomachic and diaphoretic. 
Nicanpra physaloides, Persoon. b. July, Aug. %%. 2—3 ft. Intro- 
duced. | 
Nupuar advena, Aiton. Yellow Water-lily. y. July. 2{. In ponds. 
Leaves sometimes floating. Flowers large. 
N. Kalmiana, Aiton. y. July. 2f. In a pond a little south of Troy. 
Leaves floating. Flowers smaller than the preceding. 
