North American flora.

v. 22, pt. 1 (1905)

North American flora.

v. 22, pt. 2 (1963)

North American flora.

v. 22, pt. 3 (1908)

North American flora.

v. 22, pt. 4 (1908)

North American flora.

v. 22, pt. 5 (1963)

North American flora.

v. 29, pt. 1 (1914)

North American flora.

v. 29, pt. 2 (1938)

North American flora.

v. 21, pt. 3 (1918)

Proceedings of the American Academy of Arts and Sciences.

v. 28, new ser. v. 20 (1892-1893)

Proceedings of the American Academy of Arts and Sciences.

v. 22, new ser. v. 14 (1886)

Proceedings of the American Academy of Arts and Sciences.

v. 24, new ser. v. 16 (1888-1889)

Proceedings of the American Academy of Arts and Sciences.

v. 52 (1916-1917)

Proceedings of the American Academy of Arts and Sciences.

v. 4 (1857-1860)

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v. 7 (1865-1868)

Proceedings of the American Academy of Arts and Sciences.

v. 55 (1919-1920)