42 Centaurea Americana.
quiring no care whatever, other than the preservation of its seed, for
its perpetuation, it is well suited to open borders. I have observed,
however, in the gardens of Messrs. Landreth, whence I obtained
the specimens from which the drawing was made, that its habit was
rather debile, and seemed to require props: a circumstance probably
owing to accident, since it is described by its discoverer to be from
four to six feet high, and the habit of robust specimens appears to
be erect, as represented in the table.
Fig. 1. Represents a flowering portion of the plant.
2. A flower-bud, with the leaves cut off!
3. A fertile floret.
4. A neutral floret.
5. Exterior caffeine scale.
6. Interior or upper caffeine scale.
(All the size of nature.)
