Crataegus × lavallei Hérincq ex Lavallée

Dönmez, Ali A., 2014, Nomenclatural, taxonomic and biogeographic novelties in the Turkish Crataegus L. (Rosaceae-Maleae) taxa, Adansonia (3) 36 (2), pp. 245-253 : 251

Crataegus × lavallei Hérincq ex Lavallée

Arboretum Segrezianum 21 (7). ( C. pubescens forma stipulacea × C. crus-galli ).

— Typus: unknown.

DIAGNOSE. — Tree or shrubs up to 5-7 m tall. Thorny, thorns up to 40 mm long. Leaves 40-110 × 30-50 mm, oblong to narrowly elliptic, undivided, finely serrate at margin, glabrous or hairy alongside the veins. Inflorescence 25-35 × 30-50 mm, erect, corymbose with 20-40 flowers, villose; 4-8 mm. Flowers 15-20 mm in diameter; sepals 4-6 × 1-2 mm, lanceolate, margin entire finely serrate, erect on fruit; petals 5-8 × 5-7 mm; stamens 5-20, anthers pink; styles 2-3, hairy at base. Fruits (12-) 16-19 mm long × 10-15 mm, ovate orange to reddish, glabrous, flesh orange; pyrenes 2-3, 7-10 × 5-6 mm, 2-sulcate dorsally.

SPECIMENS EXAMINED. — Turkey. Ankara, Kurtuluş Park , 700 m, 1.VI.2003, A.A.Dönmez 11165 ; 4.X.2003, A.A.Dönmez 11768 ( HUB).

REMARKS

The species is cultivated in Turkey and naturalized specimens of the species have not been observed in the field. It is included in the list of alien Crataegus taxa alongside C. crus-galli L. and the more common C. laevigata (Poir.) DC.