[page] [11]

The sole fact hitherto noted, as far as I know by Hoffmann (as quoted by Millardet) that cotyledons of Caryophylleæ rise at night.—

Frank can give reference

[page] [11v]

(We shall hereafter find analogous cases with presently see that most of the species of Primula exist under two analogous forms; & it may be asked what is the meaning of the above described important differences in their structure? between the two forms of the cowslip? The question seems well worth of careful investigation, & I will give

[Forms of flowers, p. 18: "We shall presently see that most of the species of Primula exist under two analogous forms; and it may be asked what is the meaning of the above-described important differences in their structure? The question seems well worthy of careful investigation, and I will give my observations on the cowslip in detail."]