. Bulletin. Natural history; Natural history. 27S NaTIHAI, HivTOIJY FRAXINUS QUADRANGULATA :\Iiciiaux Blue Ash The Blue Ash is a tree of muderate to rather large size, with a small and slender crown of spreading hranches. The yellow-green leaves, S to ]'i inches long, consist of 5 to 11 pointed, coarsely to:)thed leaflets, 'â ) to ."j inches long 1)v a third as wide, set on short stalks along the slender pet- ioles. The flowers, which contain both stamens and pistils, are borne in loosely branched clusters from lateral buds. The keys, with twisted wings that su
. Bulletin. Natural history; Natural history. 27S NaTIHAI, HivTOIJY FRAXINUS QUADRANGULATA :\Iiciiaux Blue Ash The Blue Ash is a tree of muderate to rather large size, with a small and slender crown of spreading hranches. The yellow-green leaves, S to ]'i inches long, consist of 5 to 11 pointed, coarsely to:)thed leaflets, 'â ) to ."j inches long 1)v a third as wide, set on short stalks along the slender pet- ioles. The flowers, which contain both stamens and pistils, are borne in loosely branched clusters from lateral buds. The keys, with twisted wings that surround the seed, are 1 to "3 inches long by nearly ]/l inch wide. The stout, red-tinted, bfanchL-t-, being distinctly 4-sided and ^ four small, corky wings, one at each angle, provide the outstanding charac- teristic of the tree. The gray buds are very round and set close within the hoHow of the broadly lunar leaf-scars. The trunk, covered by rather thin, light-gray bark broken into large plates, grows to a diameter of 2 feet or more; and the tree usually atiam^ a height of more than 60 feet. Distribution: The Blue Ash ranges, on hills, in valleys, and on bottomlands, from Ontario westward to Iowa and southward to Alabama. Its range in Illinois includes the en- tire State, but in the south it is rare, hiving been found only in Union and Wabash counties. In the northern half of the State, though still an infrequent tree, it grows on the flood plains of smaller creeks and in the upland woods. In Union County it grows on limestone bluffs; in Champaign County it occurs in the Uni- versity Woods along with White and Green ashes, maples. Buckeye, hickories, Bass Wood, and several oaks; and in LaSalle County George D. Fuller and P. D. Strausbaugh^ report it, along with the Kentucky Coffee Tree. Sycamore, White Elm, and Pawpaw, as one of the sur- vivors on the cut-over land along Big Indian Creek. > Trans. 111. St. Acad. Sci. Vol. 12, pp. 246-272. Fi(,.
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