Crataegus azarolus L., Sp. pl. 477. 1753.

Doenmez, Ali A. & Oezderin, Sevgin, 2019, Additional contributions to taxonomy, nomenclature and biogeography of the Turkish Crataegus (Rosaceae) taxa, PhytoKeys 122, pp. 1-13: 1

publication ID

http://dx.doi.org/10.3897/phytokeys.122.33002

persistent identifier

http://treatment.plazi.org/id/EA8C7AD7-6FA2-7D69-56AB-9EA79679ACF0

treatment provided by

PhytoKeys by Pensoft

scientific name

Crataegus azarolus L., Sp. pl. 477. 1753.
status

 

Crataegus azarolus L., Sp. pl. 477. 1753.  

Description.

Shrub or tree up to ca. 4 (-10) m tall. Twigs more or less lanate or lanate-tomentose. Thorns up to ca. 8 cm long, more or less stout. Buds 2-3 (-4.2) mm long, 2-3 (-4.8) mm in diameter. Leaf blades more or less coriaceous, more or less lustrous dark green and appressed-pubescent above, pale or greyish-green and glabrous or appressed pubescent beneath, attenuate, cuneate or rounded at base, lobes obtuse, acute or cuspidate, margin entire or serrate with more or less coarse teeth; basal pair of veins divergent, straight or convergent. Subterminal leaf blades of flowering shoots (10-) 15-30 (-80) × (7-) 10-25 (-70) mm, lobes 1-2 (-4) pairs, rarely absent, basal lobes sometimes extending to midrib, each lobe entire or with (1-) 2-3 (-6) teeth in distal half, lobe length 0.5-1 (-3) times to width; petiole (2-) 4-6 (-17) mm; stipules rarely absent or 3-5 (-10) × 0.5-1 (-3) mm, entire or with 1-3 teeth. Subterminal leaf blades of short shoots (10-) 15-30 (-70) × (10-) 15-25 (-50) mm, lobes 1-2 (-4) pairs, basal pair extending to midrib, basal lobe entire or with 3 (-6) teeth in the upper half; petiole (2-) 4-8 (-28) mm long; stipules mostly undeveloped or 2-3 (-5) × 0.5-1 mm. Leaf blades of elongate shoots (15-) 20-35 (-80) × 15-25 (-70) mm, lobes 1-3 (-4) pairs, basal pair entire or 1-4 (-8) teeth at upper half; petiole 2-10 (-20) mm; stipules 4-10 (-25) × (0-) 3-5 mm, with 3-5 (-10) teeth. Inflorescence (10-) 15-20 (-45) × 15-20 (-60) mm long, corymbose, (5-) 10-20 (-25) flowered, more or less lanate or lanate-tomentose; pedicels 2-5 (-10) mm; bracts 1-4 × 0.2-0.9 mm, caducous, linear or lanceolate, margin entire or denticulate with 1-6 teeth. Flowers (5-) 10-15 mm in diameter. Hypanthium 3-6 × 3-6 mm; sepals 1.2-3.5 × 1.6-3.9 mm, usually broadly triangular, margin entire, apex more or less acute; petals 3-7 × 4-7 mm; stamens 15-20 (-22), anthers purple; styles (1-) 2-3 (4). Fruit (6-) 8-12 (-35) mm, depressed-globose, globose or slightly pyriform, yellowish-green or orange, often tinged with red, when dried, often becoming dark red; the immature fruit crowned by the persistent erect or spreading sepals, at maturity sepals re-curved; pyrenes (4-) 5-7 × 6-8 (-20) mm, dorsally sulcate, ventrally smooth, hypostyle pilose.