Add to ORKG"Printed by the George W. Carpenter fund for the encouragement of original scientific research."Mode of access: Internet
"Botanical Society of America, Publication 31. vol. XLII, no. 496."Mode of access: Internet
"From the Proceedings of the Iowa Academy of Sciences, volume VIII."Cover title.Mode of access: Inte...
"Published as a part of the annual report of the Board of Geological and Biological Survey for 1918....
Detached from Proceedings of the Academy of Natural Sciences of Philadelphia, Dec. 1919."Issued Marc...
Separate from Proc. Acad. Nat. Sci. Phila. Pt. III 1921: 459-536.Mode of access: Internet
Also considered as Contribution from the New York botanical garden, no. 219.Mode of access: Internet
"Reprinted, without change of paging, from Torreya 19 : 107-119, August 7; 143-152, September 17; 16...
"Reprinted from Forest Club Annual, University of Nebraska, Vol. V, 1913."Mode of access: Internet
Bost.soc.nat.hist. Mem. v.4, p.71-104, illus. pl.9-12, 1888."References concerning Geraniaceae" p.10...
Reprinted from: Bulletin of the Torrey Botanical Club.1898, 25: 289-303.Mode of access: Internet
Contributions from the Gray Herbarium of Harvard University; New Series 5.Mode of access: Internet
"Read before the American Philosophical Society, May 19, 1882."Mode of access: Internet
Contributions from the Harpswell laboratory of Tufts college, no. 32. cf. p. [79].Pub. by the Charle...
"From the Proceedings of the Iowa academy of sciences, vol. viii."Mode of access: Internet
"Contributions from the Department of Botany of Columbia University. - no. 137. Reprinted from the B...
"Botanical Society of America, Publication 31. vol. XLII, no. 496."Mode of access: Internet
"From the Proceedings of the Iowa Academy of Sciences, volume VIII."Cover title.Mode of access: Inte...
"Published as a part of the annual report of the Board of Geological and Biological Survey for 1918....
Detached from Proceedings of the Academy of Natural Sciences of Philadelphia, Dec. 1919."Issued Marc...
Separate from Proc. Acad. Nat. Sci. Phila. Pt. III 1921: 459-536.Mode of access: Internet
Also considered as Contribution from the New York botanical garden, no. 219.Mode of access: Internet
"Reprinted, without change of paging, from Torreya 19 : 107-119, August 7; 143-152, September 17; 16...
"Reprinted from Forest Club Annual, University of Nebraska, Vol. V, 1913."Mode of access: Internet
Bost.soc.nat.hist. Mem. v.4, p.71-104, illus. pl.9-12, 1888."References concerning Geraniaceae" p.10...
Reprinted from: Bulletin of the Torrey Botanical Club.1898, 25: 289-303.Mode of access: Internet
Contributions from the Gray Herbarium of Harvard University; New Series 5.Mode of access: Internet
"Read before the American Philosophical Society, May 19, 1882."Mode of access: Internet
Contributions from the Harpswell laboratory of Tufts college, no. 32. cf. p. [79].Pub. by the Charle...
"From the Proceedings of the Iowa academy of sciences, vol. viii."Mode of access: Internet
"Contributions from the Department of Botany of Columbia University. - no. 137. Reprinted from the B...
"Botanical Society of America, Publication 31. vol. XLII, no. 496."Mode of access: Internet
"From the Proceedings of the Iowa Academy of Sciences, volume VIII."Cover title.Mode of access: Inte...
"Published as a part of the annual report of the Board of Geological and Biological Survey for 1918....