Platanus occidentalis

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Standard Cyclopedia of Horticulture

Platanus occidentalis, Linn. Buttonwood. Buttonball. American Plane-tree. Also wrongly called Sycamore. Fig. 3063. Large tree, attaining 130 or occasionally 170 ft., with a round-topped oblong or broad head and with a trunk 10 ft. or exceptionally more in diam., often of considerable height: bark of limb and branches of very light often almost creamy white color, at the base of the trunks dark brown, fissured: stipules large, with toothed margin: lvs. as broad or broader than long, truncate or cordate, rarely cuneate at the base, usually 3-, sometimes 5-lobed, with shallow sinuses; lobes shorter than broad, coarsely toothed or entire, floccose-tomentose when young, at maturity only pubescent on the veins beneath, 4-9 in. broad: fr.-heads solitary, rarely in 2's, on 3-6-in.-long peduncles, about 1 in. across or more, comparatively smooth at length; nutlets with obtuse apex, with the rest of the style 1/16in. long or shorter. May. Maine to Ont. and Minn., south to Fla. and Texas. S.S. 7:326, 327. G.F. 2:354, 355; 9:55. Em. 1:261, 263. Gng. 4:343. Mn. 3, p. 69; 5, pp. 205,209.—The most massive and perhaps the tallest of all deciduous trees of N. Amer. and an excellent street and park tree where it is not injured by fungous diseases. A doubtful variety is var. hispanica, Wesmael (P. hispanica, Lodd.). Lvs. large, 3-5-lobed, with very shallow sinuses, coarsely toothed, usually cordate at the base. Gn.l, p. 588; 20, p. 370.—The P. densicoma, Dode (B.S.D. 1908:68), described as having usually truncate or broadly cuneate lvs. and 1-3 heads with acutish nutlets is probably not different from P. occidentalis or may belong to P. acerifolia. CH

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