Crataegus pseudoheterophylla Pojark.

Dönmez, Ali A., 2014, Nomenclatural, taxonomic and biogeographic novelties in the Turkish Crataegus L. (Rosaceae-Maleae) taxa, Adansonia (3) 36 (2), pp. 245-253: 249-250

publication ID

http://doi.org/ 10.5252/a2014n2a7

persistent identifier

http://treatment.plazi.org/id/8D4A87C3-FFBC-FFF2-FEDD-A550FB2E17D5

treatment provided by

Carolina

scientific name

Crataegus pseudoheterophylla Pojark.
status

 

Crataegus pseudoheterophylla Pojark.  

Komarov, Flora of the U.S. S   . R   . 9: 507, fig. XXX.5 (1939). — Typus: former U.S. S   . R   . Armenia: district Jerevan, prope monasterium Gehart, in faucibus fl. Gjarni-czai, 11.X.1936, Pojarkova 793 (holo-, LE!; iso-, LE!; photos: E!, HUB!)   .

KEY TO THE SUBSPECIES OF CRATAEGUS PSEUDOHETEROPHYLLA POJARK.  

1. Pedicel, hypanthium and fruit villose ......................... subsp. pseudoheterophylla Pojark.  

— Pedicel, hypanthium and fruit glabrous ........... subsp. turcomanica (Pojark.) K.I.Christ.  

DESCRIPTION

Tree or shrubs up to 6 m tall. Rarely thorny, thorns up to 50 mm long, with short twigs. Young shoots glabrous to villose. Buds 1.5-2 mm long × 1.3-2 mm in diameter.Leaves glabrous or pilose, slightly shiny at upper, greyish at below, widely cuneate at base, lobes obtuse or acute, finely serrate at margin, basal pair of vein widely divergent.Middle leaves of flowering shoots 15-30 (-45) × 15-25 (-40) mm, lobes 1-2 (-3) pairs, basal sinuses at lower half of lamina and extending nearly midvein, basal pair 1-2 times as long as wide, each lobe with (2-) 4-7 (-14) teeth in the upper half; petiole (4-) 8-12 (-23) mm; stipules 4-8 (-12) × 1-2 (-3) mm, deciduous, irregularly divided 2-5(-20) serrate, rarely 3-lobed. Middle leaves of short shoot (10-) 15-20 (-40)× 20-35 (-45) mm, lobes 1-2 (-3) pairs, basal sinuses at lower half, sinuses extends to midvein, basal pair 2-4 times as long as wide, each lobe with (4-)8-10(-14) teeth in the upper half; petiole 10-15 (-35) mm, stipules 1-3 × 0.1-0.2 mm, lanceolate, deciduous. Middle leaves of long shoots (25-) 30-35 (-50) × (25-) 30- 40 (-60) mm, lobes 2-3 pairs, basal sinuses at lower half of the lamina, extending to nearly midvein, 2-3 times as long as wide, 10-15 teeth at upper half; petiole (6-) 10-15 (-30) mm; stipules 6-10 (-21) × 2-8 mm with 8-12 (-30) serrate or irregular teeth. Inflorescence (20-) 30-40 (-50) × 20-30 mm, lax corymbose with 10-20 flowers, glabrous or pilose; pedicel 3-6 (-10) mm, bracts (1-) 2-3 (-5.3) × 0.1- 0.2 (-0.4) mm, deciduous, linear, entire or with 4-9 glandular teeth. Flowers 8-10 mm in diameter; hypanthium 2-3 (-4) × 2-3 (-4) mm; sepals 1.5-2 × 0.3-0.6 mm, triangular, margin entire, acuminate at apex; petals 5-7 × 5-7 mm; stamens 18, anthers violet; styles 1 (-2), glabrous at base. Fruit 7-10 mm long × 6-8 mm ± globose to short oblong, red or dark red, ± hairy, flesh orange, juicy, sepals recurved on fruit, rarely deciduous; pyrenes (1-)2, 4-7 × 4-5 mm, slightly 1-2-sulcate dorsally and laterally.

S

Department of Botany, Swedish Museum of Natural History

R

Departamento de Geologia, Universidad de Chile

LE

Servico de Microbiologia e Imunologia

E

Royal Botanic Garden Edinburgh

HUB

Hacettepe University