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
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.
Celtis sinensis Pers.
- 與四蕊樸的主要區別點在於：朴樹的葉多為卵形或卵狀橢圓形，但不帶菱形，基部幾乎不偏斜或僅稍偏斜，先端尖至漸尖，但不為尾狀漸尖，時質地也不及前一亞種那樣厚；果也較小，一般直徑5—7毫米，很少有達8毫米的；落葉喬木。 花期3—4月，果期9—10月。
- 5. Celtis sinensis Pers., Syn. Pl. 1: 292. 1805; Li in Fl. Taiwan 2: 109. 1976. 朴樹
Deciduous trees, up to 20 m tall; branchlets dark brown, velutinous and puberulous, glabrescent; bud scales brown, slightly brown puberulous, brown ciliate. Leaves chartaceous or coriaceous, asymmetrically or symmetrically broadly ovate, ovate to oblong-ovate, 4.5-12 cm long, 2.5-4 cm broad, puberulous or nearly glabrous on upper surface, velutinous and short rufous multicellular hairy on lower surface, apex acuminate, acute to obtuse, base oblique or slightly oblique to symmetrical, acute, obtuse, rounded or slightly cordate, margins serrate, rounded-serrate, serrulate, or sub-entire, lateral veins 3-5 pairs; petioles 5-10 mm long, puberulous. Flowers solitary, paired, or clustered; calyx 4-lobed, long-ovate, ca. 2 mm long, glabrous, ciliate; stamens 4, filamens ca. 2 mm long; ovary glabrous; pedicels 5-6 mm long, velutinous. Fruit solitary or paired, globose, 5-8 mm across.
China, Korea, Japan to the Ryukyus. Taiwan, along the coast, on plains and in thickets at low to medium elevations throughout, not no Hengchun Peninsula.
TAIPEI: Shihmen, Kao 3953; Neihu, Wang et al. 271. KEELUNG: Hopingtao, Chuang & Kao 5545. TAOYUAN: Chuwei, Kuo 10990. HSINCHU: Shienchiaoshih, Kao 10213; Kantin, Huang & Kao 3143. TAICHUNG: Chiayang, Lu 4823. KAOHSIUNG: Liukuei, Lin 2531.
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。
8. Celtis sinensis Persoon 朴树 po shu
Celtis bodinieri H. Léveillé; C. bungeana var. pubipedicella G. H. Wang; C. cercidifolia C. K. Schneider; C. hunanensis Handel-Mazzetti; C. labilis C. K. Schneider; C. nervosa Hemsley; C. tetrandra Roxburgh subsp. sinensis (Persoon) Y. C. Tang.
Trees, to 20 m tall, deciduous. Bark gray. Branchlets brown, brown pubescent, sometimes glabrescent late in season. Winter buds dark brown, 1-3 mm, glabrous or inconspicuously puberulent. Stipules linear to lanceolate, 3-5 mm, pubescent, fugacious. Petiole brown, 3-10 mm, pubescent, adaxially with a broad and shallow furrow; leaf blade ovate to ovate-elliptic, 3-10 × 3.5-6 cm, thickly papery, abaxially usually inconspicuously yellowish brown puberulent when young, abaxially with hairs scattered on major veins and sometimes tufted in vein axils with age, base rounded, obtuse, or obliquely truncate, ± symmetric to moderately oblique, margin subentire to crenate on apical half, teeth 0-16 on each side, apex acute to shortly acuminate; secondary veins 3 or 4 on each side of midvein. Flowers fascicled in leaf axils and stem bases. Style branches linear, undivided. Infructescences unbranched, 1(-3) per leaf axil, rather stout, pubescent at least proximally, 4-10 mm; fruiting pedicel 1-1.5 × as long as subtending petiole. Drupe ± globose, 5-7(-8) mm in diam. Stone white, ± globose, reticulately foveolate, ribbed. Fl. Mar-Apr, fr. Sep-Oct.
Roadsides, slopes; 100-1500 m. Anhui, Fujian, Gansu, Guangdong, Guizhou, Henan, Jiangsu, Jiangxi, NE Shandong, Sichuan, Taiwan, Zhejiang [Japan].
