Published in Annals of the Missouri Botanical Garden, in 1984, in volume 71, pages 444-463
Created: 2010-01-08, modified: 2015-12-16![](https://www.biodiversitylibrary.org/pagethumb/28001285,60,60)
Published in Annals of the Missouri Botanical Garden, in 1990, in volume 77, pages 785-801
Created: 2010-01-08, modified: 2015-12-16![](https://www.biodiversitylibrary.org/pagethumb/27279695,60,60)
Published in Annals of the Missouri Botanical Garden, in 1986, in volume 73, pages 348-381
Created: 2010-01-08, modified: 2015-12-16![](https://www.biodiversitylibrary.org/pagethumb/33244545,60,60)
Published in Rhodora, in 1999, in volume 101, issue 906, pages 143-162
Created: 2014-06-16, modified: 2016-07-26![](https://www.biodiversitylibrary.org/pagethumb/53541907,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-2021, pages 1-5
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541966,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-2080, in 1890, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541903,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-2017, pages 1-4
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541946,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-2060, pages 1-9
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541940,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-2054, pages 1-6
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541821,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-1921, pages 1-0
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541799,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-1948, in 1884, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541801,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-1950, in 1884, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541813,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-1929, in 1880, pages 1-31
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541782,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-1931, in 1881, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541784,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-1933, in 1881, pages 1-4
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541788,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-1937, in 1881, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541792,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-1941, in 1882, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541794,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-1943, in 1882, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541796,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-1945, in 1884, pages 1-3
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541852,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-1966, in 1884, pages 1-3
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541855,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-1969, in 1885, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541810,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-1959, in 1884, pages 1-39
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541849,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-1963, in 1884, pages 1-3
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541874,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-1988, in 1887, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541878,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-1992, in 1887, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541880,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-1994, in 1888, pages 1-7
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541912,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-2026, in 1889, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541914,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-2028, in 1889, pages 1
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541915,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-2029, in 1889, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541917,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-2031, in 1889, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541863,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-1977, in 1886, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541867,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-1981, in 1886, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541887,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-2001, in 1888, pages 1-4
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541891,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-2005, in 1888, pages 1-4
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541895,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-2009, in 1888, pages 1-4
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541899,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-2013, in 1888, pages 1-4
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541872,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-1986, in 1886, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541955,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-2069, in 1889, pages 1-3
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541958,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-2072, in 1889, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541960,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-2074, in 1890, pages 1-6
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541919,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-2033, in 1889, pages 1-4
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541923,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-2037, in 1889, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541972,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-2086, in 1891, pages 1-4
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541976,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-2090, in 1891, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541978,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-2092, in 1892, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541935,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-2049, in 1889, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541937,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-2051, in 1889, pages 1-2
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541939,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-2053, in 1889, pages 1
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541926,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-2040, in 1889, pages 1-3
Created: 2017-06-24, modified: 2017-06-24![](https://www.biodiversitylibrary.org/pagethumb/53541929,60,60)
Published in Michael Schuck Bebb letters to Asa Gray, 1859-2043, in 1889, pages 1-2
Created: 2017-06-24, modified: 2017-06-24