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IOWA ACADEMY OF SCIENCES 
for LiUum philaclelphicum L., from which it differs by having alternate 
narrower leaves, and an oblong capsule. It, however, has many resem- 
blances to Lilium um'bellatum Piirsh, but differs in having wider leaves 
which are smooth-margined and a much shorter capsule. 
Specimens referred to Lilium lanceolatum have been collected in 
Decatur, Adams, Union, Winneshiek, Shelby, Johnson and Osceola coun- 
ties. The species is fairly constant in its characters. The specimen 
from Winneshiek county has very narrow leaves, about a line in width, 
and would pass for Lilium uml)ellatum Pursh so far as that character 
is concerned. The width of the leaves of most specimens is between 
three and four lines. In some specimens the leaves ape numer- 
ous and present a crowded appearance, in other specimens the leaves are 
much less numerous and distant. In a Shelby county specimen the peri- 
anth-segments are narrowly ovate. Only one whorl of leaves occurs in 
the specimens and that at or near the summit of the stem and it is com- 
posed of from 4 — 8 leaves, but the whorl is frequently absent. 
It is doubtful if Lilium philaclelphicum L. occurs in Iowa, although 
it is so credited by many writers on the Iowa flora. The range as given 
by Britton and Brown is from Maine to Ontario, south to North Carolina 
and Virginia. This seems to exclude Iowa. The same authority states 
that Lilium umdellatum Pursh occurs from Ohio to Minnesota and the 
northwest territory, south to Missouri. Arkansas and Colorado. If this 
be correctly stated it is fair to presume that the speciea may occur in 
Iowa. 
The description of Lilium philadelphicum L. in Gray's Manual, Cth 
edition, includes at least three species among which is the Lilium lanceo- 
latum here proposed as new, also Lilium umhellatum Pursn, and Lilium 
philadelphicum L. The composite character of the description in Gray’s 
Manual has led all the writers on the Iowa flora to refer the species here 
discussed to Lilium philadelphicum L., as the following list of references 
show. 
Parry, C. C. Owen's Ifeport of the (Geological Survey of Wisconsin, Iowa and 
Minnesota, p. 619, 1852. 
Flores. Iowa Farmer and Horticulturist. Vol. 1, No. .3, p. 47, July. 1853. 
Bessey, C. E. Fourth Biennial Report of the Iowa State Agricultural Col- 
lege, p. 123, 1872. 
Arthur, J. C. Contributions to the Flora .of Iowa, p. 32, 1876. 
Nagel, J. J. and Haupt, J. C. Proceedings of the Davenport Academy of 
Natural Sciences, Vol. 1, p. 164, 1876. 
Ilpham, Warren. Catalogue of the Flora of Minnesota, p. 146, 1884. 
Hitchcock, A. S. Transactions of the Academy of Science of St. Louis, Vol. 
5, p. 520, 1892. 
Pammel, L. H. Proceedings of the Iowa Academy of Sciences, 1892, Vol. 1, 
part 3, p. 60, 1893 ; Vol. 3, 1895, p. 134, 1896. 
Rigg, G. B. Notes on the Flora of Calhoun County. Iowa, p. 27, 1896. 
Fink, Bruce. I’roceeclings of the Iowa Academy of Sciences, 1896, Vol. 4, p. 
103, 1897. 
Fitzpatrick, T. J. Proceedings of the Iowa Academy of Sciences, 1897, Vol. 
5, p. 129, 1898. 
Fitzpatrick, T. J. and IM. F. L. Proceedings of the Iowa Academy of Sciences, 
1897. Vol. 5, p. 166, 1898; Vol.' 6. 1898, p. 198, 1899. 
Barnes, W. D. ; Reppert, Fred ; and Miller, A. A. I’roceedings of the Daven- 
port Academy of Sciences, Vol. 8, p. 261, 1900. 
