MONADELPHIA. PENTANDRIA. 



and therefore importantly specific. 3. crassiuscitlo. Erects 

 subpubescent; stem mostly simple; leaves linear-lanceolate^ 

 serrulate, acute, and rather thick; flowers subsessile; seg- 

 ments of the calix reflexly denticulate; disk of the lower 

 lip of the corolla bearded. — Flowers very few and remote, 

 rather larg-e, blue, calix as often smooth as pubescent. 4. 

 amcena. Obs. Ihe largest of the United States' species. 

 Leaves more commonly scabrous than smooth, lanceolate 

 acuminate, serrate, 6 to 8 incites long, little more than an 

 inch broad; flowers bright blue instcund racemes. S.pii- 

 berula. Erect, simple and pubescent; leaves subelliptici 

 or elliptic-ovate, serrulate; spike secund, foliaceous at the 

 base, bractes serrulate; calix shorter than the tube of the 

 corolla; segments of the lower lip oval, aeute. — "Very near- 

 ly allied to L. Ciaytonianat but the flowers are 3 limes as 

 large, and of finer and deeper blue. The calix is either 

 smooth or pubescent, never eiUated. II a b. On the mar- 

 gins of ponds and swamps in the Pine forests of Carolina 

 and Georgia. 



6. *Michaiixii, L. CUffortiana. Mich. Rather smootli, 

 branching above; leaves petiolate, oval, crenately toothed; 

 lower ones suborbicular; spike leafless; flowers small, 

 pedicellate. Hab. In Virginia. Certainly distinct from 

 L. CUffortiana of Linnxus, which appears to be a South 

 American species. 7. Claytomana. Obs. Bractes entire, 

 calix equal with the tube of the corolhi, segments of the 

 lower lip o!)long, palate promir.ently bidentate as in X. pu- 

 <!'fr7/A/,- si>ike smooth, naked below. 



7. Kuhnii. Stem smooth, erect and branching; leaves 

 smooth, lungjlin^r and nearly cr.ti re; raceme loose and 

 leafy; ptduncle longer than the fruit, minutely bibracteate 

 at the summit; calix camp?nulate, segments lanceolate, 

 shorter than the capsule, which is attenuated at the base. 

 Hab. In the slate of New York, Sec. 1 have scarcely seen 

 any plant, tlie flower apart, which so imposingly resembled 

 Campaiuita rotitndifoUa. It is one of the slenderest and 

 most nortlicrn species; the calix including the germ (which 

 it properly invests througliout this genus) is perfectly 

 campanulate; in the specimen before me, which appear.s 

 luxtiriant and virgately branched, some of the leaves are 

 2 1-2 inches long, and scarcely 2 line&wide, with here and 

 there a minute denticulation; the fruiting peduncles are 

 an inch in length, with the very minute and almost glan- 

 dullform bractes occupying a position on the peduncle not 

 to be met with in any other of the species in this Cata- 

 logue; the capsule smooth, and partly vesicular, is obovate 

 and acute below as in a Campanula! the flower is of a 

 delicate bluf', the. fc'^gments of the lo^ve^ lip oboval and. 



