Crataegus wootoniana
Torreya 7: 236. 1908.
Shrubs, 20 dm. Stems little branched, thorny; twigs: new growth not recorded, glabrous, 1-year old reddish-brown, older gray; thorns on twigs 1-year old reddish-brown, ± stout, 4 cm. Leaves: petiole length 40–50% blade, eglandular or sparsely glandular; blade ovate, 3–4 (–5) cm, 70–100% mature size at anthesis, base truncate to broadly cuneate, lobes 3 or 4 per side, sinuses shallow, lobe apex obtuse to cuspidate, margins serrate, veins 4 or 5 per side, apex subacute, adaxial surface short-pubescent young, later glabrate. Inflorescences 5–10-flowered; branches glabrous; bracteoles absent or few, shape not recorded; anthesis in spring. Flowers 10–12 mm diam.; hypanthium glabrous; sepals 2–3 mm, margins subentire, abaxially glabrous; stamens 10, anthers pink; styles 3. Pomes shiny red, ellipsoid, 8 mm; sepal remnants erect-patent; pyrenes 2 or 3, dorsally grooved.
Phenology: Flowering May; fruiting Sep.
Habitat: Grassy areas near streams
Elevation: 2000–3000 m
Discussion
Of conservation concern.
Crataegus wootoniana is known from New Mexico. No authentic records of C. wootoniana for Arizona are known; all alleged examples seen proved to be C. macracantha.
Crataegus wootoniana is similar to the widespread 57. C. macrosperma (see discussion thereunder), from which it differs little.
Selected References
None.
Lower Taxa
"thin" is not a number."glandular" is not a number. "eglandular" is not a number."adnate" is not a number."dm" is not declared as a valid unit of measurement for this property.