Stone morphological characteristics

Morphological characteristics

Evergreen trees, as high as 18 meters, dark gray bark, shallow longitudinal to nearly smooth; shoots densely gray-brown stellate puberulous, growing branches nearly glabrous. Leaves papery, ovate to elliptic-lanceolate (leafs recoiling on nodes sometimes 3-5-lobed), 14-20 cm long, 7-17 cm wide, apical to acuminate, Base broadly cuneate or obtuse, shallowly cordate, entire or (1-) 3(-5) lobed, young leaves puberulent on both surfaces, glabrous above growth leaves, sparsely stellate below Hairs or a few glabrous; base veins 3-5; petiole 6-12 cm long, densely stellate puberulent, with 2 flat round glands at the tip. Flowers monoecious, identical or unequal, inflorescences 15-20 cm long; calyx neat or irregularly 2- or 3-lobed when flowering, densely puberulent; petals oblong, ca. 6 mm, milky to Milky yellow; male flowers: 15-20 stamens, arranged in 3-4 rounds, born on prominent torus, coats; female flowers: ovary densely stellate puberulent, 2(-3)-loculed, styles 2 , short, 2 deep. Drupe subglobose or slightly obliquely slender, ca. 5 cm long, 5-6 cm in diam., with 1-2 seeds; seeds globose, laterally flat, testa hard, with verrucous ribs. Flowering from April to October.

石栗


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