View source for Crataegus Oxyacantha

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Crataegus Oxyacantha, Linn. Hawthorn or May of English literature. Shrub or small tree, to 15 ft., with spreading glabrous branches and stout spines: Lvs. short-petioled, cuneate or truncate at the base, roundish or broadly ovate, 3-5-lobed, with broad, serrulate lobes, 1-2 in. long: corymbs 5-10-fld., glabrous: fr. globular or roundish oval, ⅓-½ in. high, scarlet; stones 2, with 2 furrows on the inner side. May. Eu., N. Afr. B.R. 13:1128 (as C. oxyacanthoides). Var. bicolor, Rehd. (C. Oxyacantha var. Gumpperi bicolor, Hort. C. Oxyacantha rubra, Schneid.). Fls. white in the center, edged red. F.S. 16:1651. Var. Paulii, Rehd. (var. coccinea, Hort. Var. Paul's New Double Scarlet. C. Oxyacantha var. splendens, Schneid.). Fig. 1103. With double, bright scarlet fls.; one of the most showy. I.H. 14:536. F. 1867:117. Var. aurea, Loud. (C. Oxyocantha var. xanthocarpa, Lange). With yellow fr. Var. quercifolia, Loud. Lvs. with broad, rounded and crenate lobes.—Most of the garden forms usually listed as varieties of C. Oxyacantha belong to the following species. Even the varieties enumerated above are by some botanists not considered true C. Oxyacantha, but referred to C. media, Bechst., a hybrid between this and the following species; the existence of hybrid forms makes the distinction between the two species still more difficult.
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