155 
back ; pappus usually slender-pointed, but occasionally a few with 
narrow- spatulate tips; anthers more or less acuminate. -Flowers 
several weeks earlier than C. pumilus, its season being from about 
June 20th to August 1st. Dry sands from Whiting, Ind., east- 
ward near the lake shore. First observed, July 9th, 1890. Col- 
lected at Kankakee, 111., 1870, E. J. Hill . Athens, 111., Elihu 
Hall . Ames, la., A. S. Hitchcock. 
It probably takes the place of C. pumilus in the west, and the region 
of the Great Lakes. (B. P.) 
Page 94. Insert after Leonurus cardiaca, L.,— 
L. sibiricus, L. 
Grand Boulevard, Bastin. (B.) 
Page 98. Salsola kali, L. 7u «~y 
C. P. & Ft. W. R. R., near Clarke, Ind.; also on side track to ice 
house near Wolf Lake, within the limits of Chicago, Hill. 
Page 106. Insert after Quereus bieolor, Willd., — 
Q. muhlenbergii, Engelm. 
Rare and local; west side Wolf Lake, near the north end, in Lake 
County, Ind., Hill! 
Page 106. Insert after Quereus imbricaria, Michx., — 
Q. imbricaria x tinctoria. 
Groves along Flag Creek, about one mile northwest of Willow 
Springs. 
Some of the leaves were almost like those of Q. imbricaria, but the 
larger number were lobed, buf less deeply than in typical tinctoria; 
leaves slightly pubescent on the underside. All acorns gathered 
from this form were either typical fruits of imbricaria, or of Q. 
tinctoria, but with pubescent, yellowish, squarrose scales. Q. 
macrocarpa was the only other species found in the immediate 
vicinity, Hill! 
Page 118 . Insert after Tradeseantia virginica, L.,— 
T. virginica, L., var. villosa, Watson. 
In woods near Washington Heights, June, 1891, Bastin. (B.) 
/'Page 122. Potamogeton puleher, Tuck. 
Collected in a railroad ditch near Dune Park, Ind. ; rare, 1891. 
Page 122. Insert after Potamogeton amplifolius, Tuck.,— 
P, illinoensis, Morong. 
Leaves generally not very large, smaller, on the whole, than those 
of P. amplifolius; stipules blunt. Lake Calumet, in water 2 feet 
or more deep, at Pullman, August 27th, 1890, Hill. (B.) 
