.. 7 817 5 116 4 4.. 13 127.. 10 1 37 1 % 32 29 16 5 10 8.. 18 18 13 15 8 5 8 5 8.... 18 21 45 13 842 11 11..34 Trees, over 20 feet.... 222 38 12 11 6 2 4 3. Shrubs.. 78 32 322 4 8 4 5 14 3 617 6.. 15 9 3 5.. 13 33 32.... 1712 17 722 332 16 24 6 55 23 % 41 428 510 5 618 4 8 22 8.. 19 12 4 55 19 10 10 2 7 7.. 10 5 6 12 4 4 5 2 4 1 2 17 12 21 5..14 5 8 917 232 514 4 % 35 18 18 413 13.. 18 911 22 7 7 9 4 7 2 431 22 38 9..25 915 16 31 458 10 25 7 171 63 24 38 819 14 5'31 15 17 35 13 6'23 13 10 6 237 53 60 10 147 21 29 16'52 691 21 48 11 144/27 6... 174241.... 22 15 22 928 441 21 31 8 71 30 52 3 95 5 A summary of the Record of 171 specimens of S. cordata, 93 of trees, 78 of shrubs, personally, collected and examined 1895. PLATE 1. EXPLANATION.- Figs. 1, 2, 3, 4, 5, 6, leaf forms from trees over 20 ft. high. PLATE 2. EXPLANATION.- Figs. 7, 8, 9, 10, 11, 12, leaf forms from shrubs under 10 ft. high. PLATE 3. EXPLANATION.- Fig. 13, stipules various forms, natural size, the first three, upper line from the same tree, the one at right of second line from a shrub collected at Washington, D. C.; Figs. 14 and 15, twigs with winter buds, natural size, the former most usual in the arborescent form; Figs. 16 and 17, pistillate catkins, natural size; Fig. 18, stamens partly aduate X 3; Figs. 19, 20, 21, three forms of pistil X 3, with stigmas X 6. |