All Floras      Advanced Search
FNA Vol. 9 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 9 | Rosaceae | Crataegus

36. Crataegus schizophylla Eggleston, Bull. Torrey Bot. Club. 38: 243. 1911.

Shrubs, 20–40 dm. Stems: twigs: new growth ˂flexuous˃, glabrous, 1-years old tan, older gray; thorns on twigs ± straight, 1-year old shiny black, 3–5 cm. Leaves: petiole 3–7 mm, length 12–15% blade, glabrous, eglandular; blade ˂yellow-green, shiny˃, elliptic to narrowly ovate, 2.5–5 cm, coriaceous, base cuneate, lobes 0 or 1–3 per side, margins serrulate, venation craspedodromous, veins 4–6 per side, apex acute to obtuse, surfaces glabrous. Inflorescences 5–20-flowered; branches sparsely hairy; bracteoles not seen. Flowers 12–15 mm diam.; hypanthium glabrous; sepals 3–4 mm, margins ± entire, adaxially glabrous; stamens 10, anthers pink; styles 1–3. Pomes bright red, ± oblong-obovoid, 7–9 mm diam., glabrous; sepals patent-reflexed; pyrenes 1–3.

Flowering May–Jun; fruiting Oct. Thickets and banks on sandy soil; of conservation concern; 10–20 m; Mass.

Crataegus schizophylla is known from Martha’s Vineyard, Duke County. The extension-shoot leaves are larger, relatively wider, with acute lobes. Except for its distinctive leaf form, unique in this series, it closely resembles C. crus-galli.


 

Related Objects  
  • Distribution Map
  • Map

     |  eFlora Home |  People Search  |  Help  |  ActKey  |  Hu Cards  |  Glossary  |