1893.] Variation in Erythronium. 135 
figs. §-7, in twenty plants from which I took measurements, 
varies from 1.1" to 4.6™,. Fig. 11 represents diagrammati- 
cally the upper surface of a stigma, line dc showing where 
these measurements were taken. Sometimes the stigma has 
the contracted appearance of E. Americanum, fig. 7; in such 
cases the plant can only be identified by the color of the 
perianth. 
A distinction has been made between the leaves of E. 
Americanum and E. albidum, regarding shape, size and mark- 
ings. So far as my observations go, this is a distinction with- 
outa difference. I have found patches of E. Americanum 
Where the leaves were entirely without blotches, and the leaves 
: frequently as deeply mottled as are ever 
found in E. Americanum. The shape in both species varies 
realy oval to nearly linear, and the size varies as 
atly, 
Another 
for Kansas. 
-— Leaves lance-elliptical, more or less 
ight green blotches; cross section of 
ith sides concave because of narrowed 
-— Leaves much longer and more 
linear, never mottled; cross section of ovary 
T, with sides convex because of wider parti- 
8 developed at the base within the old; no 
runners,” 
— peg leaves of E. albidum of which I took measure- 
as from four to nineteen times greater 
of the leaves being nearly linear. Ac- 
he leaves of E. albidum are not marked. 
kind 
* an otherwise answering perfectly to the descrip-_ 
| ibd E. mesochoreum. It may not be a typical form, 
; “scription the best of any in the material 
ile the sides of the ovary of E. albidum 
*, they are sometimes convex, figs. 13 and 
mined about twenty corms of E. albidum, 
have exa 
