DIDYNAMIA GYMNOSPERMIA. 
472. TEUCRIUM. Gen. pl. 960. 
1. T. cano-hirsutissimum ; foliis ovato-lanceolatis serratis, 
omnibus petiolatis, caule erecto, spicis verticillatis 
confertis, bracteis calyce duplo longioribus.— Willd. 
sp. pl. 3. p. 22. 
In low grounds, on the borders of ponds and lakes: Ca- 
nada to New York. XY. July, Aug. v.v. Flowers 
purple. 
2. T. pubescens; foliis ovato-oblongis serratis, superioribus 
subsessilibus, caulé erecto, spicis verticillatis confer- 
tis, bracteis longitudine calycis.— JF ld. sp. pl. 3 
p.22. 
| Icon. Schkuhr handb. 160. 
In low grounds. and bogs: New York to Carolina. Y. 
June—Aug, v.v. Resembles the "m species 
very much. 
473. MENTHA. Gen, pl. 967. 
1. M. floribus verticillatis, foliis lanceolatis serratis petiola. 
tis pilosis, staminibus corollam e it Willd. 
8p. pl. 3. p. 82. 
In Canada, Kalm. XX. +. 
2. M. assurgens, pubescens ; foliis petiolatis | ovali-lanceo- 
utrinque acutissimis, floribus verticillatis, stami- - 
ra nibus exertis.— Mich. fl. amer. 2. p. 2. 
On the banks of rivers and near springs : Canada to Pen- 
sylvania. 27. Jaly, Aug. v.v. Flowers pale purple. 
8. M. erecta, glabriuscula; foliis lanceolato-ovatis subses- 
; silibus, spica gracili, verticillis minimis interrupta, 
. staminibus non exertis.— Mich. fl. amer. 2. p. 2. 
M. viridis. Walt. fl. car. 161. i 
. In wet places, near springs : Pensylvania to Georgia, X. 
S gegen 5 v. v. Flowers white, ; 
; 474. ISANTHUS.- Mich. fl. amer. 2. p. 3. 
1. I. viscido-pubescens; foliis ovali-lanceolatis utrinque 
acutis 3-nervibus, ' pedunculis 1~2-floris. Mich. T 
amer. 2. p 4.. 
con. Mich. Ji. amer.2. t-30. 
On -— hills, in lime-stone soil : Virginia and Kentucky. 
O. July, Aug. v. v. Flowers pale blue. 
canadense: 
$ 
virginicum, 
canadensis, 
borealis, 
tenuis, 
ceeruleus. 
