. Trees of Texas; an illustrated manual of the native and introduced trees of the state . hed to find the name of the American elm. The firstchoice to be made is between leaves needle, scale or awl-like;fruit a cone of dry scales or a berry-like cone, and leaves withexpanded blad(^s, fruit not as above. This choice is easilymade in favor of the latter. Under I, leaves compound, orII, leaves simple, the beginnei- will find it necessary to consultthe glossary and illustrations to determine just what is meant by 77k Trees of Texas 21 these terms, when his decision will Ix^ in favor of II. Ilicn h
. Trees of Texas; an illustrated manual of the native and introduced trees of the state . hed to find the name of the American elm. The firstchoice to be made is between leaves needle, scale or awl-like;fruit a cone of dry scales or a berry-like cone, and leaves withexpanded blad(^s, fruit not as above. This choice is easilymade in favor of the latter. Under I, leaves compound, orII, leaves simple, the beginnei- will find it necessary to consultthe glossary and illustrations to determine just what is meant by 77k Trees of Texas 21 these terms, when his decision will Ix^ in favor of II. Ilicn hemust determine^ whether the leaves are opposite or alternate onthe stem. Here his decision jioes to B, leaves alternate. UnderB, the choice goes to 2, leaves with netted veins. then tob, leaves with only one primary vein at base. The nextchoice is between leaves entire and blade of leaf serrate ornotched, (1) or (2). In this case the second is foundcorrect. After this the choice falls on (a), veins of leavesstraifiht, not prominently branched then y. Trees not thorny II. Iieaf 1. Seirate (saw-tootlied).4. Undulate (wavy). 2. Dentate (toothed)..5. Sinuate (bayed). 6. 3. Crenate (scaUoped).Incised (jagged). and finally (x) leaves oblique at base, and m fruit acircular samara, leaves harsh to the touch. This leads unerr-ingly to the genus Ulmus, and no other tree in our flora can beplaced here if the observations are carefully made and each deci-sion accurately drawn. Turning to the page reference a descrip-
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Keywords: ., bookcentury1900, bookdecade1910, bookidtreestx00lew, bookyear1915
