Crataegus laevigata subsp. palmstruchii, (Lindman) Franco

(b) Subsp. palmstruchii (Lindman) Franco View in CoL , Feddes Repert. 74: 25 (1967)

(C. palmstruchii Lindman): Leaves 30-50 mm, more densely pubescent on the veins beneath and with tufts of hair in the vein-axils beneath; sepals nearly twice as long as wide; hypanthium villous; fruit 10-12 mm, ellipsoid. Commoner in the eastern part o f the range, and in the mountains.

C.x media Bechst. , Diana 1: 88 (1797) ( C. monogyna* laevigata ) occurs in N.W. and C. Europe. Plants derived from C. monogyna subsp. nordica and C. laevigata subsp. laevigata have cuneate leaves, with 3-5 subacute, subentire lobes extending | of the way to the midrib, almost straight main veins, flowers 10- 14 mm in diameter, triangular-acute sepals 1 -5-2 x 2 mm, villous hypanthium and 1-2 styles. Plants derived from C. monogyna subsp. monogyna and C. laevigata subsp. laevigata differ in having leaves with the lobes extending not more than | way to the midrib, serrulate in their apical half, flowers 12-16 mm in diameter, broadly triangular sepals and glabrous hypanthium.

C. x schumacheri Raunk. , Bot. Tidsskr. 42: 247 (1933) ( C. calycina x laevigata ) also occurs in N.W. and C. Europe. It has orbicular-ovate leaves, rounded-cuneate at base, 3-5 ovate, acuminate, serrulate lobes with almost straight main veins, triangular-subulate sepals longer than wide, glabrous hypanthium, oblong fruit 8-10 mm, crowned by erect, but later recurving sepals.