Mr. J. Scott examined 100 plants growing near
Edinburgh, and found 44 to be long-styled, and 56
short-styled; and I took by chance 79 plants in Kent,
of which 39 were long-styled and 40 short-styled; so


that the two lots together consisted of 83 long-styled
and 96 short-styled plants. In the-long-styled form
the pistil is to that of the short-styled in length, from
| an average of five measurements, as 100 to 51. The
} stigma in the long-styled form is conspicuously more
| globose and much more papillose than in the short-
styled, in which latter it is depressed on the summit; _


Cuar. I. PRIMULA VULGARIS. 35
)
:


Fig. 3.
Outlines of pollen-grains of Primula vulgaris, distended with water, mucn
magnified and drawn under the camera lucida, The upper and smaller
grains from the long-styled form; the lower and larger grains from

the short-styled.
