討論:石朴
山羊百科，林文智老師的植物、山岳、攝影紀錄
1. 葉除基部3出脈外，無其餘側脈 4. C. philippensis
1. 葉除基部3或5出脈外，尚有側脈1-4對。
2. 葉先端銳尖至尾狀漸尖（當年生小枝近基部之2-3片葉除外）。
3. 葉僅中脈及側脈上具極稀疏之伏毛，基部明顯歪斜 2. C. formosana
3.葉具明顯伏毛，基部微或不歪斜 1. C. biondii
2.葉先端圓、鈍、銳尖、至稀漸尖。
4.葉下表面具短硬伏毛或近光滑；先端圓、鈍、銳尖、至漸尖 3. C. nervosa
4.葉下表面具長柔毛及紅褐色短毛；先端銳尖，稀漸尖 5. C. sinensis
2. Celtis formosana Hayata 石朴
Evergreen trees; branchlets slender, velutinous, glabrescent; bud scales brown, brown puberulous or tomentose, brown ciliate. Leaves ovate, elliptic-ovate or elliptic, 7-15 cm long, 2.5-5 cm broad, chartaceous, apex acuminate to caudate-acuminate, base rounded to obtuse, very oblique, margins serrulate to entire in upper part, green above, glaucous beneath, lateral veins 3-5 pairs; petioles 6-8 mm long, glabrous to sparsely velutinous. Flowers 1-3, fascicled, axillary; calyx lobes glabrous, ciliate on margins. Fruit 1 or 2 together, ovoid; pedicels slender, 8-10 mm long, glabrous.
Endemic, in thickets and secondary forests from low elevations to 1,500 m throughout the island.
TAIPEI: Waihsuanshih, Jeng 686; Toutinli, Kuo 12102. ILAN: Chilan, Huang et al. 10717. TAICHUNG: Anmashan, Liu et al. 3049; Chingshan, Lu 24819. NANTOU: Chingshuikou, Huang et al. 835. CHIAYI: Kuantzelin, Li 851. PINGTUNG: Shetin, Yang 1765; Laofoushan, Chen 000495. HUALIEN: Chimei, Li 3002; Honku, Kao 9840.
- タイワンエノキ Celtis tetrandra
四蕊朴 Celtis tetrandra Roxb.
- 乔木，高达30米，树皮灰白色；当年生小枝幼时密被黄褐色短柔毛，老后毛常脱落，去年生小枝褐色至深褐色，有时还可残留柔毛；冬芽棕色，鳞片无毛。叶厚纸质至近革质，通常卵状椭圆形或带菱形，长5-13厘米，宽3-5.5厘米，基部多偏斜，一侧近圆形，一侧楔形，先端渐尖至短尾状渐尖，边缘变异较大，近全缘至具钝齿，幼时叶背常和幼枝、叶柄一样，密生黄褐色短柔毛，老时或脱净或残存，变异也较大。果梗常2-3枚（少有单生）生于叶腋，其中一枚果梗（实为总梗）常有2果（少有多至具4果），其它的具1果，无毛或被短柔毛，长7-17毫米；果成熟时黄色至橙黄色，近球形，直径约8毫米；核近球形，直径约5毫米，具4条肋，表面有网孔状凹陷。花期3-4月，果期9-10月。
7. Celtis tetrandra Roxburgh, 四蕊朴 si rui po
Trees, to 30 m tall, deciduous or sometimes evergreen. Bark grayish white. Branchlets densely yellowish brown pubescent when young, brown, usually glabrescent with age; lenticels few or none. Winter buds brown, 1-3 mm; scales glabrous, margin ciliate. Stipules narrowly lanceolate, caducous, to 7 mm, never enclosing buds. Petiole 6-13 mm, brown, broadly sulcate, puberulous at least near adaxial furrow; leaf blade ovate-elliptic, ovate-lanceolate, or ± rhombic, 5-13 × 2.5-5.5 cm, thickly papery to ± papery, abaxially usually inconspicuously yellowish brown puberulent when young, with hairs scattered on major veins and sometimes tufted in vein axils with age, base oblique with one side ± rounded and other cuneate, margin entire or obtusely serrate, teeth 0-13 on each side, apex acuminate to shortly caudate-acuminate; secondary veins 3 or 4 on each side of midvein. Flowers fascicled, occasionally in racemes of 2 or 3 flowers. Style branches linear, undivided. Infructescences unbranched or seldom forked, rarely showing a small scar from a fallen male flower, 1-3 per leaf axil, rather slender, glabrous or pubescent, 0.8-1.5 cm; fruiting pedicel 1 or 2 × as long as subtending petiole. Drupe yellow to orange when mature, ± globose, 7-8 mm in diam. Stone ± globose, ca. 5 mm in diam., 4-ribbed. Fl. Mar-Apr, fr. Sep-Oct.
