DIDYNAMIA GYMNOSPERMIA. 
89 
Ianceolatis, obtusis, 
integerrimis, sessili- 
bus ; racemis Iaxiflo- 
ris foliosis. 
entire, sessile ; ra- 
cemes loosely flower- 
ed, leafy. 
Sp. pi. 3. p. 173. Mich. 2. p. 12. Fursh 2 p. 412. 
Root creeping, perennial. Stem about 2 feet high,' 4 angled, frequently 
branching. The lower leaves attenuated at base into a short petiole, ob- 
tuse, the upper ones narrow, almost linear. Flowers in vigorous plants 
paniculate. The panicles composed of simple opposite branching racemes. 
Flowers opposite. Bractea a leaf at the base of each peduncle, lanceo- 
late, entire, longer than the peduncle and calyx. Calyx bilabiate, lips 
nearly equal, entire, tne upper one furnished with a transverse appendage 
like a crest on its back. Corolla 2-lipped, villous, pale blue, spotted in 
the throat with white; the upper lip 3-cleft, the lateral segments small, 
slightly reflexed, the intermediate compressed, vaulted, emarginate, the 
lower lip shorter, 2 cleft, obtuse. Stamens shorter than the corolla. 
Anthers hairy. Style about as long as the stamens. Stigmas 2, acute. 
Seed globose dotted, 1, 2, or 3, frequently abortive. 
This plant when young has frequently all of its leaves entire, in this state 
it is said to be the S. Hyssopifoliaof Linnaeus, it varies however so much not 
only in the leaf but in the size of the flower, as to make it doubtful wheth- 
er two species are not yet included under this name. The name itself 
ought to be changed, Integrifolia is surely missapplied when given to a 
plant of which every mature leaf has its margin indented. 
Grows in ditches and damp lands, very common along the sides of 
roads. 
Flowers May — August. 
2. Caroliniana. Lamark. 
S. ramosa, glaber- 
rima ; foliis petiolatis, 
lineari-lanceolatis, a- 
cutis, integerrimis ; 
racemis laxis, foliosis; 
calycibus obtusis. 
Lam. encyc. 7. p. 706. 
Branching, glab- 
rous ; leaves on peti- 
oles, linear lanceolate, 
acute, entire ; ra- 
cemes loose, leafy ; 
calyx obtuse. 
Pursh 2. p. 412. 
With this plant I am unacquainted. Mr. Nuttall hints that it is proba- 
bly a smooth variety of the preceding species. But Lamark must have- 
possessed at least good specimens of the plant, since he published a figure 
VOL. II. M 
