討論:細枝柃木

山羊百科，林文智老師的植物、山岳、攝影紀錄

33. 细枝柃 Eurya loquaiana Dunn

33a. var. loquaiana

灌木或小乔木，高2-10米；树皮灰褐色或深褐色，平滑；枝纤细，嫩枝圆柱形，黄绿色或淡褐色，密被微毛，小枝褐色或灰褐色，无毛或几无毛；顶芽狭披针形，除密被微毛外，其基部和芽鳞背部的中脉上还被短柔毛。叶薄革质，窄椭圆形或长圆状窄椭圆形，有时为卵状披针形，长4-9厘米，宽1.5-2.5厘米，顶端长渐尖，基部楔形，有时为阔楔形，上面暗绿色，有光泽，无毛，下面干后常变为红褐色，除沿中脉被微毛外，其余无毛，中脉在上面凹下，下面凸起，侧脉约10对，纤细，两面均稍明显；叶柄长3-4毫米，被微毛。花1-4朵簇生于叶腋，花梗长2-3毫米，被微毛。雄花：小苞片2，极小，卵圆形，长约1毫米；萼片5，卵形或卵圆形；长约2毫米，顶端钝或近圆形，外面被微毛或偶有近无毛；花瓣5，白色，倒卵形；雄蕊10-15枚，花药不具分格，退化子房无毛。雌花的小苞片和萼片与雄花同；花瓣5，白色，卵形，长约3毫米；子房卵圆形，无毛，3室，花柱长2-3毫米，顶端3裂。果实圆球形，成熟时黑色，直径3-4毫米；种子肾形，稍扁，暗褐色，有光泽，表面具细蜂窝状网纹。花期10-12月，果期次年7-9月。

36.细枝柃 Eurya loquaiana Dunn, J. Linn. Soc., Bot. 38: 355. 1908.

Shrubs or trees, 2-10 m tall. Young branches grayish brown, glabrous or subglabrous; current year branchlets yellowish green, terete, slender, puberulent; terminal buds puberulent and pubescent. Petiole 2-4 mm, puberulent; leaf blade oblong-elliptic, oblong-lanceolate, ovate-lanceolate, ovate, ovate-elliptic, or elliptic, (2-)4-9 × 1.5-2.5 cm, thinly leathery to papery, abaxially pale green, sparsely puberulent to puberulent only along midvein, and purplish red when dry, adaxially dark green to yellowish green, glabrous, and sometimes golden yellow glandular, midvein abaxially elevated and adaxially impressed, secondary veins (8-)10-20 on each side of midvein, slender, and visible on both surfaces, base cuneate to broadly cuneate, margin serrulate, apex long acuminate. Flowers axillary, solitary or to 4 in a cluster. Pedicel 2-3 mm, puberulent. Male flowers: bracteoles ovate, ca. 1 mm; sepals ovate to suborbicular, ca. 3 mm, outside puberulent to subglabrous, inside sericeous; petals obovate, 5-6 mm; stamens 10-15; anthers not locellate; pistillode glabrous or sparsely pubescent, 3-loculed. Female flowers: bracteoles, sepals, and petals similar to those of male flowers; style (1-)2-3 mm, apically 3-lobed. Fruit black when mature, globose, 3-4 mm in diam. Seeds blackish brown, reniform, shiny. Fl. Oct-Dec, fr. Jul-Sep.

1 Leaf blade oblong-elliptic, oblong- lanceolate, or ovate-lanceolate, 4-9 × 1.5-2.5 cm, adaxially not golden yellow glandular punctate; stamens ca. 15; style 2-3 mm. 36a var. loquaiana

尾尖叶柃 Eurya acuminata DC.

灌木或小乔木；嫩枝纤细，灰褐色或红褐色，密被短柔毛；顶芽锥形，密被短柔毛。叶纸质或薄革质，披针形、长圆状披针形或狭椭圆形，长5.5-9.5厘米，宽1.5-2.5厘米，顶端尾状渐尖，尖头钝，基部楔形，边缘有细锯齿，上面绿色，稍有光泽，无毛，下面淡绿色，被短柔毛，中脉在上面稍凹下，下面凸起，侧脉两面均不甚明显或在下面稍明显，网脉两面不明显；叶柄长3-6毫米，被短柔毛。花1-3朵簇生于叶腋，花梗长2-3毫米。雄花：小苞片2，圆形；萼片5，几圆形，近革质，长约2-2.5毫米，顶端钝，外面被短柔毛；花瓣5，白色，长圆形或卵圆形，长3.5-4毫米；雄蕊15-20枚，花药不具分格；退化子房无毛。雌花的小苞片、萼片和花瓣与雄花同，但较小，子房圆球形，无毛，通常3室，花柱长2-73毫米，顶端3-5浅裂或深裂。果实圆球形，直径3-4毫米。花期11-12月。

产于我国台湾（台北、台中、南投、嘉义、台东、阿里山）、云南东南部（屏边）、西藏南部（墨脱）等地；多生于海拔700-2700米的山坡疏林或灌丛中。越南、缅甸、尼泊尔、印度、斯里兰卡、马来半岛及印度尼西亚等地也有分布。模式标本采自印度。

34. Eurya acuminata Candolle, 尖叶柃

Shrubs or small trees. Young branches grayish brown, glabrous; current year branchlets reddish brown, densely pubescent; terminal buds densely pubescent. Petiole 3-6 mm, pubescent; leaf blade lanceolate, oblong-lanceolate, or rarely ovate-oblong, 5.5-9.5 × 1.5-2.5 cm, papery to thinly leathery, abaxially pale green and pubescent, adaxially green, shiny, and glabrous, midvein abaxially elevated and adaxially slightly impressed, secondary veins more than 15 on each side of midvein and visible or slightly raised on both surfaces, base cuneate, obtuse, or rounded, margin serrulate, apex caudate-acuminate and with an obtuse tip. Flowers axillary, solitary or to 3 in a cluster. Pedicel 2-3 mm, pubescent. Male flowers: bracteoles orbicular, ca. 1 mm; sepals 2-2.5 mm, subleathery, outside pubescent, apex obtuse; petals oblong to ovate, 3.5-4 mm; stamens 15-20; anthers not locellate; pistillode glabrous. Female flowers: bracteoles, sepals, and petals similar to those of male flowers but slightly smaller; ovary globose, glabrous, 3-loculed; style 2-3 mm, apically 3-5-lobed or parted. Fruit globose, 3-4 mm in diam. Fl. Nov-Dec, fr. Jun-Aug. 2n = 58.