台灣植物誌 第二版 Flora of Taiwan, 2nd edition Vol. 1
3. AMENTOTAXACEAE 穗花杉科
LI, HUI-LIN and KENG, HSUAN
Shrubs or small trees, glabrous, the branchlets opposite. Leaves opposite, broad, linear-elliptic, acute, with a prominent midrib and with 2 broad, distinct, white glaucous stomatic bands beneath. Staminate and ovuliferous cones dioecious, on the year's branches. Staminate cones in spike-like catkins, terminating the branchlets, long and pendulous, the staminate scales with 4-5 pollen sacs. Ovuliferous cones solitary, in the axil of bract, on short thick pedicel, the ovule solitary,erect. Seeds solitary,large, drupe-like, ovoid, surrounded by reddish yellow aril open at apex.
A monogeneric family; the genus, Amentotaxus, is sometimes included in the Taxaceae, or associated with Cephalotaxus to form the Cephalotaxaceae.
1. AMENTOTAXUS Pilger 穗花杉屬
Characters of the family.
A genus of three or four species widely scattered in southern and southwestern China, Taiwan and N. Vietnam; one species occurs in Taiwan.
1. Amentotaxus formosana Li in Journ. Arnold Arb. 33: 196. 1952; and in Fl. Taiwan 1: 502. pl. 172. 1975; Cheng et al. in Fl. Reip. Pop. Sin. 7: 452. pl. 104. f. 1-3. 1978. 台灣穗花杉 Pl.214, Photo 81, 82
Podocarpus argotaenia auct. Non Hance.: Matsum. & Hayata in Journ. Coll. Sci. Univ. Tokyo 22: 399. 1906 (Enum. Pl. Form.).
Amentotaxus argotaenia auct. Non Pilger.: Yamamoto in Bot. Mag. Tokyo 40: 453. 1926; Kanehira, Form. Trees rev. ed. F. 2. pl. 10. 1936.
A medium-sized or small tree up to 10 m high and 30 cm in diameter, thinly branched. Leaves falcate, 5-8.5 cm long, 7-8 mm broad, dark greenish above, with 2 broad white stomatic bands beneath, the stomatic bands about twice as broad as the marginal bands; the margins revolute. Seed drupe-like, axillary, long-pedicelled, ellipsoid, 2.5-3 mm long, becoming dark purple. Chromosome number x=7 (Chuang & Hu, 1963).
Endemic. It is confined to southeastern parts of Taiwan, at altitudes of 1,200-1,300 m in broad-leaved forests, very scarce.
TAITUNG: Kanehira s. n. 1925, Sasaki & Yamamoto s. n. 1927*.