Pasania hancei var. arisanensis

阿里山三斗石櫟

Pasania hancei (Benth.) Schottky var. arisanensis (Hayata) Liao

名彙資訊

特徵描述

典藏標本

數位照片

分布位置

相關資訊

Liao, The Taxonomic Revisions of the Family Fagaceae in Taiwan 130. fig. 38. 1991. (Taxon. Revis. Fam. Fagaceae Taiwan)

同發表文獻

Quercus arisanensis Hayata

Hayata, Icones Plantarum Formosanarum 3: 178. fig. 25. 1913. (Icon. Pl. Formos.)
Lithocarpus arisanensis (Hayata) Hayata

Hayata, General Index to the Flora of Formosa 72. 1917. (Gen. Ind. Fl. Formos.)
Cyclobalanopsis ternaticupula (Hayata) Kudo f. arisanensis (Hayata) Kudo

Kudo, Journal of the Society of Tropical Agriculture 3: 390. 1931. (J. Soc. Trop. Agr.)
Lithocarpus ternaticupula (Hayata) Hayata var. arisanensis (Hayata) Kanehira

Kanehira, Formosan trees : indigenous to the island (revised) 116. 1936. (Formos. Trees rev. ed.)
Pasania ternaticupula (Hayata) Schottky var. arisanensis (Hayata) Liao

Liao, Memoirs of the College of Agriculture, National Taiwan University 12(2): 113. 1971. in syn.. (Mem. Coll. Agr. Natl. Taiwan Univ.)
Pasania brevicaudata (Skan) Schottky var. arisanensis (Hayata) Ying

Ying, Cloured illustrated flora of Taiwan : Includes introduced species 3: 248. fig. 758. 1988. (Col. Ill. Fl. Taiwan Intr. Pl.)
Lithocarpus hancei (Benth.) Rehd.

Yang, Liu & Lu, Manual of Taiwan Vascular Plants 2: 32. fig. 54. photo 117. 1997. (Manu. Taiwan Vas. Pl.)

Liu, Illustrations of native and introduced ligneous plants of Taiwan . 1961. (Ill. Nat. Intr. Lign. Pl. Taiwan)

tree

Medium-sized evergreen trees.
Leaves alternate, thinly coriaceous, entire, oblong to elliptic, 9–11 cm long, 3.3–4 cm broad, short acute at apex, acute to obtuse at base, attenuate toward petioles, polished and glabrous above, dull and glabrous below, midrib and veins somewhat elevated above. distinctly elevated below, lateral veins 9–13 pairs, arising at an angle of 60° from the midrib; petioles 1.5–2 cm long, narrowly winged at apex, thickened at base.
Inflorescence catkins or spikes, unisexual, simple or mixed; staminate flowers 3.5 mm long, 2 mm broad, pubescent outside; perianth 6-lobed; stamens 12, anthers 0.3 mm long, 2-celled, longitudinally dehiscent. Pistillate spikes 7 cm long, robust; pistillate flowers 3, aggregately clustered, 2.5 mm long, 2.5 mm broad; ovary 3-celled, styles 3, stigma pointed.
Cupules dish-shaped, 5–7 mm long, 15–17 mm across; scales mostly imbricate on upper to median parts of cupules, arranged in many series, broadly triangular in shape, cuspidate at apex, 2 mm broad, slightly appressed-tomentose outside, thinly appressed-pubescent inside, often with 2–4 concen-tric rings of scales on lower part of cupule; scar of nut on cupule 8 mm across, elevated.Nuts strongly compressed-globose, 12–13 mm long, 1.8–2 cm across.

fruit maturing from October to November.

花	1	2	3	4	5	6	7	8	9	10	11	12
果	1	2	3	4	5	6	7	8	9	10	11	12

台灣 : very rare although widely distributed, in forests at altitudes of 700–2,500 m at Paling (Taoyuen), Alishan (Chiayi), Tayulin, Lishan (Taichung), Alikung (Kaohsiung), and Tapushan, Chihpen (Taitung).
世界 : Distributed in S China.