| General data | Classifications | List of species | Local names | Back
to home page |
| Quercus pseudosetulosa | |
| Author | Q. Li, M.Gu & M. Deng 2018 Phytotaxa 373(4): 272-282 |
| Synonyms | |
| Local names | |
| Range | China (Guangdong, Dawanshan Island); |
| Growth habit | 0.5-3 m |
| Leaves | 5-10 x 2-5 cm; evergreen; leathery; more or less thick; ovate to lanceolate; apex acuminate, mucronate; base rounded or broadly cuneate, slightly decurrent on petiole; margin somewhat revolute; adaxially lustrous green, hairless; abaxially grey-green, hairless; 5-8 veins pairs, flat obove, raised beneath; petiole 1-2.5 cm, tomentose |
| Flowers | in July; pistillate inflorescences hairy, 1-3 cm long, 1-3 flowered with only one reaching maturity; pistillate flower 2 mm wide, with 3 styles, sometimes bifid; |
| Fruits | acorn oblong-ovoid, 1.9 cm long, 1.2 cm in diametre, glabrous; apex with 3 persistent styles; cup bowl-shaped, 1-1.3 cm wide, enclosing 1/3 to 1/2 the acorn, with pubescent, triangular scales; basal scar convex, 5 mm wide; maturing next year, in August-September |
|
Bark, twigs and |
young twigs covered with a tomentum made of short, yellow-grey, stellate trichomes and with small lenticels; mature twigs with a short greyish tomentum; |
| Hardiness zone, habitat | not hardy; sub-tropical to tropical climate; |
| Miscellaneous | -- Sub-Genus Cerris,
Section Ilex; -- Threatened species (IUCN Red List Category : CR); only in 2 places on Dawanshan Island, with a total of less than a hundred individuals; -- Resembles Q. setulosa and Q. bawanglingensis, of which it differs in having a short yellow-greyish tomentum on the twigs, a long pubescent petiole, thick and leathery, flat, glabrous, lustrous leaves with revolute margin |
| Subspecies and varieties |
|
| Pictures |