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ILLUSTRATED FLORA OF EAST TEXAS - Brit - Botanical Research ...

ILLUSTRATED FLORA OF EAST TEXAS - Brit - Botanical Research ...

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26 INTRODUCTION/SUMMARY DATA ON <strong>FLORA</strong><br />

SUMMARY DATA ON THE <strong>FLORA</strong><br />

AND COMPARISON WITH OTHER <strong>FLORA</strong>S<br />

SUMMARY <strong>OF</strong> THE <strong>FLORA</strong> <strong>OF</strong> <strong>EAST</strong> <strong>TEXAS</strong>*<br />

FERNS<br />

& SIMILAR PLANTS GYMNOSPERMS MONOCOTYLEDONS DICOTYLEDONS ANGIOSPERMS TOTAL<br />

Families 19 3 46 134 180 202<br />

Genera 39 4 252 784 1036 1079<br />

Species 73 9 978 2342 3320 3402<br />

Additional<br />

Infraspecific taxa 1 0 70 187 257 258<br />

*DICOT AND TOTAL ANGIOSPERM DATA AND TOTALS ARE TENTATIVE PENDING COMPLETION <strong>OF</strong> VOLUMES TWO AND THREE.<br />

<strong>EAST</strong> TX TX 1<br />

COMPARISON WITH OTHER <strong>FLORA</strong>S<br />

NCTEX 2<br />

OK 3<br />

AR 4<br />

LA 5<br />

KS 6<br />

WV 7<br />

NC&SC 8<br />

Genera 1079 1328 854 850 942 1010 801 693 951 1222<br />

Species 3402 5042 2223 2549 2877 3249 2111 2155 3360 5862<br />

Native Species 2783 1829 2427 2423 1667 2913 4739<br />

Introduced Spp. 619 394 760 826 435 747 1023<br />

Total Taxa 3660 5256 2376 2844 3187 2228<br />

Area<br />

(in 1000s of square miles)<br />

62.6 269 40 70 53 52 82 24 86 164<br />

<strong>EAST</strong> <strong>TEXAS</strong>:<br />

ca. 67 % of the species in Texas (in 23 % the land area)<br />

133 % as many species as Oklahoma (in 89 % the land area)<br />

82 % native species (18 % introduced from outside the United States)<br />

163 Texas endemics and 26 East Texas endemics<br />

115 taxa of conservation concern (Vol. I only)<br />

Number of genera and species of Poaceae<br />

(Largest East Texas family) 117 410<br />

Number of genera and species of Asteraceae 127 398<br />

Number of genera and species of Cyperaceae 16 248<br />

Number of genera and species of Fabaceae 62 240<br />

Number of species of Carex<br />

(Largest East Texas genus, Cyperaceae) 80<br />

1 Turner et al. 2003; 2 Diggs et al. 1999; 3 Taylor & Taylor 1994; 4 Arkansas Vascular Plant Manual Committee 2002;<br />

5 Thomas & Allen 1993–1998; 6 C. Freeman, pers.comm.; 7 Strausbaugh & Core 1978; 8 Radford et al. 1968;<br />

9 Hickman 1993.<br />

CA 9

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