. Bulletin (Pennsylvania Department of Forestry), no. 11. Forests and forestry. PLATE CXXIII. CATALPA 1. A piiii'cli; of fl'iwors, X l- 2. A with two tir.)(»i)iiii: cigar-liki; fruits, 3. A winged seed, x J. 4. A winter twig, x j. See I'late II. till' oiu' split iipeu showing the seeds, x §. 217 CATALPA Catalpa bignonioides, Walter FAMILY AND GENUS DESCRIPTION-Thls tree belong to the Bignonia family, Bignonl- aceae. which atK)ut 100 genera ANJth speeles. Mbst of the representatives of this family occur in the tropics; only a few are found in the temperate zone. They oc
. Bulletin (Pennsylvania Department of Forestry), no. 11. Forests and forestry. PLATE CXXIII. CATALPA 1. A piiii'cli; of fl'iwors, X l- 2. A with two tir.)(»i)iiii: cigar-liki; fruits, 3. A winged seed, x J. 4. A winter twig, x j. See I'late II. till' oiu' split iipeu showing the seeds, x §. 217 CATALPA Catalpa bignonioides, Walter FAMILY AND GENUS DESCRIPTION-Thls tree belong to the Bignonia family, Bignonl- aceae. which atK)ut 100 genera ANJth speeles. Mbst of the representatives of this family occur in the tropics; only a few are found in the temperate zone. They occur as trees shrubs, woody climbers, and rarely as herbs. North America has onlv 0 genera with 8 species in its flora and Pennsylvania 3 genera with 3 The genus Catalpa is the only one which has tree representatives occurring rather frequently in this State. This genus comprises about 7 Bpecles In the world, of which number 2 are native to America. No representative of this genus is native to Pennsylvania but 1 speiies has been naturalized po extensively in every part of the State, that a description of it in this publication was cimsidered desirable. FOEM—-Usually 25-40 ft. high but may reach a height of 60 ft. with a diameter of 3 feet. Trunk usually short, crooked, often angular, and unattractive. Crown high, broad, and rather symmetrical in appearance in summer, due to the dense foliage. BARK—Light brown, rather thin, shallowly-ridged, scaly, bitter. TWIGS—Stout, smooth, or slightly downy, yellowish-brown, usually frozen back in the north, covered with numerousi large lentlcels, roughened by leaf-scars. Pith large, white, somttimes chambered at the nodes. See Plate II, 2. BT7DS—Terminal bud usually absent. Lateral buds small, almost imbedded in bark, usually less than i of an inch long, covered with 5-G visible, small, l>rown bud-scales. LEAVES—Opposite or whorled, i. e., more than two at a node, simple, 6-10 Inches long, 4-5 Inches broad, ov
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