Crataegus pentagyna, Waldst. & Kit. ex Willd.

16. C. pentagyna Waldst. & Kit. ex Willd. View in CoL , Sp. Pl. 2: 1006 (1800).

Shrub or small tree; twigs sparsely arachnoid-lanate, later glabrescent, grey-brown; spines c. 10 mm. Leaves 20-60 x 20-40 mm, subrhombic-ovate to obovate, coriaceous, dark green and nearly glabrous above, lighter green and sparsely arachnoidlanate beneath, finally nearly glabrous; lobes 3-7, irregularly serrate, wide, subobtuse, extending $ of the way to the midrib, with acute sinuses; petiole 15-30 mm; stipules narrow, falcate long-acuminate, remotely dentate to entire. Corymb compound, many-flowered; hypanthium and pedicels tomentose; flowers 12-15 mm in diameter. Sepals 1 x 2 mm, broadly triangular, soon deciduous; styles 3-5; top of ovary tomentose. Fruit 10-15 mm, globose-ellipsoid, blackish-purple, dull; pyrenes 4-5. Margins of woods. E. C. Europe and N. part of Balkan peninsula, extending eastwards to S. Ukraine. Al Bu Cz Hu Ju?Rm Rs (W, K, E)?Tu.

C. klokovii Ivaschin , Ukr. Bot. Zur. 21(6): 61 (1964), from the E. Ukraine, a tree with the leaves less hairy beneath, flowers 10-12 mm in diameter, and usually 3 styles and pyrenes, is perhaps a subspecies of 16.