66 SIR J. LUBBOCK—PHYTOBIOLOGICAL OBSERVATIONS. 
contrary, continues to grow, and eventually (fig. 141) the coty- 
ledons are spatulate, obovate or oblong-obovate, obtuse, with a 
tooth on each side; the lower part with a distinct midrib and 
tapering much to the base, glabrous, with puberulous, pubescent 
petioles, connate at the base. 
. Fig. 141. 
= = LAM L- 
In ug SS a 
(Enothera stricta: 30 days after germination. Nat. size. 
The first leaves are alternate, lanceolate, obtuse, tapering to 
the petiole, obsoletely and distantly toothed at the margins, and, 
like the petioles, are glabrous with pubescent petioles. 
In Clarkia rhomboidea the cotyledons immediately after ger- 
mination are orbicular, entire, or very faintly emarginate, with & 
more or less prominent apical tooth, sessile, glabrous, and 
purplish. One day after germination they are rather more 
distinetly emarginate and minutely papillosely pubescent. After 
a week more they are (fig. 142) obovate or subpanduriform, 
emarginate, with a small tooth in the notch, constricted below 
the middle. The basal portion is much more conspicuously 
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