This section is from the book "The Standard Cyclopedia Of Horticulture Vol2", by L. H. Bailey. See also: Western Garden Book: More than 8,000 Plants - The Right Plants for Your Climate - Tips from Western Garden Experts.
This name has been bestowed on a graft hybrid between Crataegus mon-ogyna and Mespilus germanica, discovered in 1894 in the garden of M. Dardar at Bronvaux near Metz, Germany. Like Laburnum Adamii, which is probably the best known of the graft hybrids, it produces at the same time branches intermediate in their characters between the parents and branches resembling more or less closely the parent plants. Two distinct forms produced on different branches of the parent tree have been prop, and distributed under the names C. Dardari and C. Asnieresii. The first form (C. Dardari, Simon-Louis), has the leaves and the fruits very similar to those of the medlar, but the branches are spiny, the flowers appear in corymbs, are distinctly pedicelled and have 15-20 stamens and the fruits have only 1-3 stones, measure 1/2-3/4in- across, and are crowned by persistent upright connivent calyx-lobes. M.D.G. 1912:101. The second form, C. Asnieresii, Schneid. (C. Jules d'Asnieres, Simon-Louis) resembles more Crat\aegus monogyna, but is pubescent; the leaves on the flowering branchlets are usually oval to obovate and often entire, while those of the shoots are ovate or rhombic-ovate and usually with 1 to 3 rounded or rarely acute lobes on either side; the flowers are borne in pubescent, 6-12-flowered corymbs, have 20 stamens and 1-2 styles; the fruit is subglobose and less than 1/2in. across.
G.C. III. 50:183, 185. Gn. 75, p. 310. M.D.G. 1912:100. - While C. Dardari is botani-cally more interesting, C. Asnieresii is more ornamental and forms a handsome small tree with gracefully arching branches studded with numerous flower-clusters. It is prop, by budding or grafting like the horticultural varieties of Crataegus. Alfred Rehder.