Pyrus ioensis
Read about Pyrus ioensis in the Standard Cyclopedia of Horticulture
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Pyrus ioensis, Bailey (P. coronaria var. ioensis, Wood. Malus ioensis, Brit. Malus coronaria var. ioensis, Schneid. P. iowensis, Carruth). Prairie or Western Crab-apple. Fig. 3300. Small tree, the younger parts gray-woolly: lvs. from ovate-oblong to elliptic-obovate, irregularly and mostly bluntly toothed and the larger ones marked with right-angled notches of shallow lobes, very tomentose below or becoming rusty and rarely glabrate with age, the petioles short and stout and pubescent: fls. usually upon shorter pedicels which, like the calyx, are tomentose : fr. oblong or at least never flattened lengthwise, sometimes angular, larger than in P. glaucescens and clinging later to the tree, dull heavy green with numerous light-colored dots on the skin, the surface having a greasy feel, the st. short and thick as compared with No. 41, and set in an oblique cavity, the basin narrow and shallow, with variable corrugations and a closed and pubescent calyx, the flesh sour and austere. Wild in low or flat lands in the Mississippi Valley, the typical form, as understood by Rehder, ranging from Minn, and Wis. to Neb., Kans., and Mo. B.M. 8488. S.S. 4:168 (frs. too flat).—Frs. appropriated by the settlers, but the species is probably not in cult, for its fr., although a late-blooming double-fld. variety has been lately intro.,—Bechtel's crab, sometimes referred to P. angustifolia. G.C. III. 25:397. R.B. 38:185. R.H. 1910:60. P. ioensis is a variable species, in some of its forms difficult to separate from P. coronaria, P. angustifolia, and other species. Var. Pal- meri, Bailey (M. ioensis var. Palmeri, Rehd.). Small and slender tree, to 18 ft., differing from the type chiefly in the smaller oblong more thinly pubescent lvs. which are rounded at apex, and those on the flowering shoots not lobed and crenate-serrate. Mo. Var. spinosa, Bailey (M. ioensis var. spinosa, Rehd.). Dense bushy shrub, 6-8 ft., with slender spiny branches: differs from var. Palmeri in a shrubby habit, smaller lvs. and fls., and glabrescent calyx: from P. coronaria (P. angustifolia) in the pubescence of the lvs., serrate or serrulate lf.-margins and lobed ovate lvs. of the strong shoote. Mo. Var. Bushii, Bailey (M, ioensis var. Bushii, Rehd.). Differs in bearing less deeply lobed lvs. than the type, which are glabrescent: from var. Palmeri it differs in having oblong-lanceolate acute glabrescent lvs. Mo. Var. creniserrata, Bailey (M. ioensis var. creniserrata, Rehd.), is a slender spineless tree with branches villous when young, and crenate-serrate or entire elliptic-ovate to oblong-ovate lvs., or those on the vigorous shoots somewhat doubly serrate: calyx tomentose. La. Var. texana, Bailey (M. ioensis var. texana, Rehd.). Small much-branched tree, to 18 ft., or sometimes a shrub forming thickets, with densely tomentose branchlets which become glabrescent the first or second year, differing from the type in having smaller and much broader lvs. that are not at all or only slightly lobed and densely villous at maturity. Texas, representing the southwestern extension of the species.
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References
- Standard Cyclopedia of Horticulture, by L. H. Bailey, MacMillan Co., 1963
External links
- w:Pyrus ioensis. Some of the material on this page may be from Wikipedia, under the Creative Commons license.
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