Mexico 2013 Flora de San Luis Potosi y Queretaro

Voucher:AN 424

Crataegus rosei Eggl.

Location:San Luis Potosi. On Route 70 from San Luis Potosi to Rio Verde. On the north side of the road.
Coordinates: 22°03'55" N, 100°36'46" W Alt: 2238m

Upright, spiny shrub 6 m tall, with branches spreading 3 m. Flowers white, unpleasant smelling. Nectary glands greenish yellow becoming dark pink.
Quercus mexicana woodland with Rhus and Crataegus.

Identification Notes: Verified with W. W. Eggleston 'The Crataegi of Mexico and Central America' Bulletin of the Torrey Botanical Club, Vol. 36, No. 9. 1909, pp. 501-514. Styles 3-5, stamens 15-18, corymbs tomentose. Sepals with serrate, glandular margin.

Nova, J.A. de #424      12 June 2013

morphological details

flower flower flower flower hypanthium hypanthium

androecium, gynoecium androecium, gynoecium

carpels carpels

spine spine

additional pictures

flowers flowers


field picture
Herbarium voucher
Herbarium voucher

Other field pictures

flowering branch