Synoptical flora of North America. The Gamopetalae : being a second edition of vol. I. part II., and vol. II. part I., collected. Supplements and indexes / by Asa Gray.
Synoptical flora of North America. The Gamopetalae : being a second edition of vol. I. part II., and vol. II. part I., collected. Supplements and indexes / by Asa Gray.
Reprinted from the combined 2nd ed. of v. 1, pt. 2 and v. 2, pt. 1, 1886."Published [i.e. under the auspices of] the Smithsonian Institution, Washingt...