spreading, with five rounded, beautiful blue segments, 
inclming to purple: tube nearly white, with three nerves 
corresponding to each of the segments, each of these three 
lateral nerves has a longitudinal plate or membrane, open- 
ing towards the central nerve, and reaching to the bottom. 
Stamens five, inserted at the base of the corolla. Filaments 
reaching considerably beyond the tube, white, with spread- 
ing hairs. Anthers oblong, reddish. Germen ovate, hairy, 
ene-celled, but from two opposite sides there projects a 
parietal, longitudinal receptacle, which thickens as it pro- 
jects into the centre of the capsule, where the two almost 
meet and bear many ovules. 
This interesting plant, discovered by Dr. Ricuarpson, 
during the first over-land arctic expedition, growing abund- 
antly amongst trees that had been destroyed by fire, on the 
banks of the Missinippi, was named by Mr. Brown in honor 
of the commander of that enterprize; and one of the most 
distinguished men of the present century. It must now 
have become general in our gardens, for seeds have been 
distributed to various gardens, the result of the second 
journey*, where they have succeeded, as a hardy plant, 
and where they recommend themselves by the bright colour, 
and profusion of their blossoms, a good deal resembling 
those of a Potemonium. |Our drawing was made from 
plants of the Glasgow Botanic Garden, where they flowered 
in June. 
Fig. 1. Flower. 2. Portion of the Corolla, to show two of the Lamelle 
of the Tube, with a Stamen. 3. Stamen. 4. Pistil. 5. Section of the Pistil. 
—Magnified. 
* Mr. Drummonp found it growing also in burnt woods, in the country 
extending from the Grand Rapid to the Rocky Mountains. 
