Region
Country
Specimen coordinates in square brackets [ ] have been approximated based on political units.
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| Mexico | | |
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[23°37'00"N]
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[102°34'30"W]
| 01 June 1847 | | Josiah Gregg | 886 | MO |
| Mexico | Coahuila | |
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| 1840 | | C.W. Short | s.n. | MO |
| Mexico | Nuevo León | Monterrey |
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25°40'12"N
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100°18'00"W
| 3 Dec 1937 | | Leslie A. Kenoyer | 116 | MO |
| Mexico | Tamaulipas | Cruillas |
0 m
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| 24 Jan 1985 | | Rafael Díaz | 00260 | MO |
| Mexico | Tamaulipas | Victoria |
320 m
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23°43'48"N
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099°08'24"W
| 1 May 1907 - 13 Jun 1907 | | Edward Palmer | 398 | MO |
| Mexico | Yucatán | Muna |
50 m
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20°31'12"N
|
089°48'00"W
| 24 Sep 1984 | | Juan Javier Ortiz-Diaz | 557 | CICY |
| Mexico | Yucatán | Muna |
50 m
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20°31'12"N
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089°48'00"W
| 24 Sep 1984 | | Juan Javier Ortiz-Diaz | 557 | MO |
| United States | New Mexico | Eddy |
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[32°57'00"N]
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[104°45'00"W]
| 19 Aug 1969 | | Norlan C. Henderson | 69-303 | MO |
| United States | Oklahoma | Kiowa |
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[34°56'00"N]
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[098°58'00"W]
| 28 Sept 1974 | | Ronald J. Tyrl & Susan C. Barber | 900 | MO |
| United States | Texas | |
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| 24 July 1889 | | Cyrus G. Pringle | 2405 | MO |
| United States | Texas | |
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| September | | J. Reverchon | 3440 | MO |
| United States | Texas | |
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| April 26, 1931 | | Marcus E. Jones | 18346 | MO |
| United States | Texas | |
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| April 22, 1930 | | Marcus E. Jones | 26372 | MO |
| United States | Texas | |
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| 2/7/1903 | | J. Reverchon | 4087 | MO |
| United States | Texas | |
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| June 18, 1910 - June 24, 1910 | | A.S. Hitchcock | 1269 | MO |
| United States | Texas | |
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| September 7, 1903 | | J. Reverchon | U087 | MO |
| United States | Texas | |
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| 27 September 1902 | | J. Reverchon | 3444 | MO |
| United States | Texas | |
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27°30'07"N
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099°29'42"W
| March 1913 - April 1913 | | Charles Russell Orcutt | 5724 | MO |
| United States | Texas | |
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| August 1899 | | Kenneth K. Mackenzie | 100 | MO |
| United States | Texas | |
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| 10 May 1900 | | Heinrich K.D. Eggert | s.n. | MO |
| United States | Texas | |
20 f
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| March 14-21, 1894 | | A. Arthur Heller | 1449 | MO |
| United States | Texas | |
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| 24 July 1889 | | Cyrus G. Pringle | 2405 | US |
| United States | Texas | |
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| 29 October 1902 | | J. Reverchon | s.n. | MO |
| United States | Texas | |
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| 29 October 1941 | | W. Dain Higdon | 41 | MO |
| United States | Texas | |
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| 4/19/1931 | | Benjamin C. Tharp | s.n. | MO |
| United States | Texas | |
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| March 1852 | | Arthur Schott | s.n. | MO |
| United States | Texas | |
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| 04 November 1897 | | William Trelease | s.n. | MO |
| United States | Texas | |
1850 m
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| 02 April | | POPE | s.n. | MO |
| United States | Texas | |
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| September 18, 1901 | | Benjamin F. Bush | 841 | MO |
| United States | Texas | |
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| 8/11/1941 | | Benjamin C. Tharp | s.n. | MO |
| United States | Texas | |
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| September | | J. Reverchon | 3440 | MO |
| United States | Texas | |
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| | | Anonymous | s.n. | MO |
| United States | Texas | |
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| April 1847 | | Ferdinand J. Lindheimer | 730 | MO |
| United States | Texas | Austin |
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[29°53'00"N]
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[096°19'00"W]
| | | George W. Letterman | s.n. | MO |
| United States | Texas | Bexar |
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[29°27'00"N]
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[098°31'00"W]
| 5 September 1978 | | William G. D'Arcy | 11710 | MO |
| United States | Texas | Brown |
1600-1800 m
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[31°47'00"N]
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[098°59'00"W]
| | | J. Reverchon | 1148 | MO |
| United States | Texas | Brown |
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[31°47'00"N]
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[098°59'00"W]
| November 1, 1925 | | Ernest J. Palmer | 29495 | MO |
| United States | Texas | Brown |
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[31°47'00"N]
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[098°59'00"W]
| November 1, 1925 | | Ernest J. Palmer | 29495 | UMO |
| United States | Texas | Cameron |
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[26°07'00"N]
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[097°31'00"W]
| Oct 15, 1965 | | Robert Runyon | 5970 | MO |
| United States | Texas | Coke |
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[31°53'00"N]
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[100°32'00"W]
| October 27, 1916 | | Ernest J. Palmer | 11156 | MO |
| United States | Texas | Comal |
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[29°49'00"N]
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[098°18'00"W]
| September 17, 1943 | | GRIFFEN | 13018 | MO |
| United States | Texas | Comal |
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[29°49'00"N]
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[098°18'00"W]
| 17 sep 1943 | | BARKLEY | 13E018 | UMO |
| United States | Texas | Culberson |
5600 f
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[31°27'00"N]
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[104°35'00"W]
| June 2, 1949 | | L. C. Hinckley & Leon Hinckley, Jr. | 4 | MO |
| United States | Texas | Culberson |
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[31°27'00"N]
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[104°35'00"W]
| July 27, 1943 | | Umaldy T. Waterfall | 5344 | MO |
| United States | Texas | Ector |
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[31°52'00"N]
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[102°33'00"W]
| 7/10/1941 | | Benjamin C. Tharp | 43069 | MO |
| United States | Texas | Gillespie |
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[30°19'00"N]
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[098°57'00"W]
| | | Anonymous | 522 | MO |
| United States | Texas | Gillespie |
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[30°19'00"N]
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[098°57'00"W]
| | | Anonymous | 19 | MO |
| United States | Texas | Guadalupe |
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[29°34'00"N]
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[097°58'00"W]
| 14 August 1940 | | W.H. Kellogg | s.n. | MO |
| United States | Texas | Hall |
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[34°32'00"N]
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[100°41'00"W]
| 24 September 1957 | | Frank W. Gould | 7721 | MO |
| United States | Texas | Hidalgo |
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26°00'00"N
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098°03'00"W
| 14 April 1977 | | James C. Solomon | 2706 | MO |
| United States | Texas | Hidalgo |
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[26°20'00"N]
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[098°12'00"W]
| 6 October 1971 | | Frank W. Gould | 14002 | MO |
| United States | Texas | Hood |
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[32°26'00"N]
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[097°52'00"W]
| May 5, 1900 | | Heinrich K.D. Eggert | s.n. | MO |
| United States | Texas | Jim Wells |
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[27°46'00"N]
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[098°06'00"W]
| 2 Jul 1965 | | Larry E. Brown | 300d | MO |
| United States | Texas | Karnes |
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[28°53'00"N]
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[097°51'00"W]
| 25 September 1988 | | Davis, Troy | 2 | MO |
| United States | Texas | Kenedy |
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[26°57'00"N]
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[097°40'00"W]
| June 16, 21-24, 1949 | | Benjamin C. Tharp | 49057 | MO |
| United States | Texas | Kerr |
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[30°03'00"N]
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[099°18'00"W]
| 21 February 1965 | | Frank W. Gould & Roy, G. P. | 11781a | MO |
| United States | Texas | Kerr |
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[30°03'00"N]
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[099°18'00"W]
| June 4, 1916 | | Ernest J. Palmer | 10040 | MO |
| United States | Texas | Kleberg |
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[27°26'00"N]
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[097°43'00"W]
| April 25, 1949 | | Jason R. Swallen | 10137 | MO |
| United States | Texas | La Salle |
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[28°21'00"N]
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[099°06'00"W]
| 26 February 1944 | | Joseph T. Painter | 14310 | MO |
| United States | Texas | Martin |
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[32°18'00"N]
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[101°57'00"W]
| 12 June 1900 | | Heinrich K.D. Eggert | s.n. | MO |
| United States | Texas | Maverick |
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[28°46'00"N]
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[100°21'00"W]
| April 12, 1969 | | ISLEY | 10735 | MO |
| United States | Texas | Midland |
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[31°52'00"N]
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[102°03'00"W]
| May 8, 1902 | | Samuel M. Tracy | 7962 | MO |
| United States | Texas | Mitchell |
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[32°18'00"N]
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[100°56'00"W]
| 8 June 1900 | | Heinrich K.D. Eggert | s.n. | MO |
| United States | Texas | Palo Pinto |
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[32°45'20"N]
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[098°18'00"W]
| 29 Apr 1939 | | Culwell, Walton | 3048 | MO |
| United States | Texas | Pecos |
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[30°45'20"N]
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[102°45'20"W]
| July 23, 1921 | | Roxana S. Ferris & Carl D. Duncan | 2896 | MO |
| United States | Texas | Pecos |
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[30°45'20"N]
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[102°45'20"W]
| 6/7/1943 | | Benjamin C. Tharp | 43A68 | MO |
| United States | Texas | Randall |
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[34°58'00"N]
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[101°54'00"W]
| June 14, 1918 | | Ernest J. Palmer | 14068 | MO |
| United States | Texas | San Patricio |
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[28°01'00"N]
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[097°31'00"W]
| 23 April 1983 | | SKOUSEN | 48 | MO |
| United States | Texas | San Patricio |
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[28°01'00"N]
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[097°31'00"W]
| 14 April 1967 | | Frank W. Gould | 12364 | MO |
| United States | Texas | San Patricio |
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[28°01'00"N]
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[097°31'00"W]
| 26 April 1980 | | Stephan L. Hatch | 4141 | MO |
| United States | Texas | Terrell |
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[30°12'00"N]
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[102°10'00"W]
| April 26, 1928 | | Ernest J. Palmer | 33501 | MO |
| United States | Texas | Tom Green |
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[31°24'00"N]
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[100°28'00"W]
| 11 May 1989 | | J. Namken | 14 | MO |
| United States | Texas | Travis |
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[30°20'00"N]
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[097°48'00"W]
| September 10, 1944 | | Barton H. Warnock | 21619 | MO |
| United States | Texas | Val Verde |
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[29°50'00"N]
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[101°05'00"W]
| September 11, 1900 | | Heinrich K.D. Eggert | s.n. | MO |
| United States | Texas | Val Verde |
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[29°50'00"N]
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[101°05'00"W]
| May 1913 | | Charles Russell Orcutt | 6088 | MO |
| United States | Texas | Val Verde |
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[29°50'00"N]
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[101°05'00"W]
| 16 Apr 1949 | | Benjamin C. Tharp & C. G. Havard | 48-618 | MO |
| United States | Texas | Victoria |
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28°42'43"N
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097°02'20"W
| 30 October 1994 | | Neil W. Snow | 6375 | |
| United States | Texas | Victoria |
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28°42'43"N
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097°02'20"W
| 30 October 1994 | | Neil W. Snow | 6377 | |
| United States | Texas | Webb |
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[27°40'00"N]
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[099°20'00"W]
| 7 April 1901 | | Heinrich K.D. Eggert | s.n. | MO |
| United States | Texas | Wilson |
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[29°10'00"N]
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[098°04'00"W]
| March 30, 1916 | | Ernest J. Palmer | 9313 | MO |
| United States | Texas | Zavala |
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[28°51'00"N]
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[099°46'00"W]
| 20 July 1985 | | S.H. Garner | 49 | MO |
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