FOOTNOTES:
[1] Ind. Geol. Rept. 22:93:1898.
[2] Amer. Mid. Nat. 3:70:1913.
[3] Proc. Ind. Acad. Sci. 1901:297:1902.
[4] See discussion under [Abies balsamea] on page 290.
[5] Proc. Ind. Hort. Soc. 1892:53:1893.
[6] Ind. Geol. Surv. Rept. 5:338:1874.
[7] Proc. Ind. Acad. Sci. 1897:173:1898.