麦珠子Alphitonia philippinensis Braid
麦珠子Alphitonia philippinensis Braid
1.麦珠子（中国高等植物图鉴）山木棉，蒙蒙木，山油麻，白石松，银树
Alphitonia philippinensis Braid in Kew Bull. 183. 1925; Merr. in Lingn. Sci. Journ. 6: 282. 1929; 中国高等植物图鉴2: 752,图3233. 1972;海南植物志3: 7, 图581. 1974.
常绿乔木，高达18米; 幼枝被锈色绒毛，小枝被细短柔毛。叶互生，厚纸质，卵状长椭圆形或卵状矩圆形，长7-13厘米，宽2.5-5厘米，顶端短渐尖或渐尖，稀锐尖，具小尖头，基部圆形或截形，全缘或波状，上面绿色，幼叶上面被锈色绒毛，后脱落，下面被灰白色棉毛，侧脉每边11-15条，上面下陷，下面凸起，具明显网脉；叶柄长0.9-1.5厘米，被密短柔毛。聚伞花序组成腋生聚伞总状或聚伞圆锥花序，被锈色密绒毛，长2-5厘米，具长3-5毫米的总梗，花两性，5基数，花梗长1-2毫米；花萼5裂，萼片三角形，内面中部以上具凸起的中肋；花瓣匙形，具爪，与雄蕊等长；花盘厚，五边形；子房藏于花盘内，2-3室, 每室1胚珠，花柱2-3半裂。蒴果状核果，球形，直径1-1.2 (1.4)厘米，成熟时黑色；中部以下为萼筒所包围，外果皮不规则开裂，内有2-3个木质化的分核，成熟时沿腹缝线开裂，每核具1种子；果梗长3-4毫米；种子红色，有光泽，具膜质假种皮，顶端开口。花期10-12月，果期翌年3-5月。
产广东（海南岛）。生中海拔的丘陵或山地疏林中，或成大片纯林，喜光。菲律宾、马来西亚和印度尼西亚也有分布。模式标本采自菲律宾。
幼树生长迅速，是优良的速生造林树种；木材结构细致，是制作家具的良好用材。
《Flora of China》 Vol. 12 (2007)
Alphitonia incana (Roxburgh) Teijsmann & Binnendijk ex Kurz
麦珠子 mai zhu zi
Rhamnus incana Roxburgh, Fl. Ind. 2: 350. 1824 ["incanus"]; Alphitonia excelsa (Fenzl) Reissek ex Endlicher; A. philippinensis Braid; Ceanothus excelsus (Fenzl) Steudel; Colubrina excelsa Fenzl.
Trees, small to medium-sized, evergreen, rarely to 30 m tall. Young branches ± densely yellowish to whitish pubescent. Leaves alternate, papery to subleathery; petiole 9-15 mm, densely pubescent; leaf blade 7-13 × 2.5-5 cm, ovate-lanceolate or ovate-elliptic, abaxially yellowish pubescent, adaxially ferruginous tomentose when young, glabrescent, primary veins prominent abaxially, impressed adaxially, lateral veins 11-15 pairs, base acute or obtuse to rounded, margin entire or slightly undulate, apex acute to shortly acuminate. Flowers light green to yellowish, 4-5 mm in diam., bisexual, 5-merous, in terminal or axillary cymes. Pedicel 1-2 mm. Calyx tube shallowly hemispherical, outside densely brownish pubescent; sepals triangular, ca. 1.5 mm, adaxially ± distinctly keeled. Petals erect to recurved, spatulate, ca. as long as stamens, clawed. Disk pentagonous, shallow, lining calyx tube, glandular. Ovary obconical, ± completely immersed in disk, 2- or 3-loculed; style
conical, nearly to half divided into 2 or 3 slightly capitate stylar branches. Drupe greenish when young, black at maturity, globose to broadly ovoid, 1-1.2(-1.4) cm in diam., basally surrounded by persistent calyx tube; exocarp irregularly dehiscent, with 2 or 3 woody locules, along ventral suture dehiscent at maturity, locules 1-seeded; fruiting pedicel 3-4 mm. Seeds red, shiny, with membranous aril, often permanently attached to receptacle after fruit dehiscence. Fl. Oct-Dec, fr. Mar-May of following year.
Sparse forests on mountains and hills; middle elevations. Hainan [Indonesia, Malaysia, Philippines].
The trees grow rapidly when young. This species is a good source of fine wood for making furniture.
别名：山木棉
科名：鼠李科 Rhamnaceae
属名：麦珠子属 Alphitonia
1.麦珠子（中国高等植物图鉴）山木棉，蒙蒙木，山油麻，白石松，银树
Alphitonia philippinensis Braid in Kew Bull. 183. 1925; Merr. in Lingn. Sci. Journ. 6: 282. 1929; 中国高等植物图鉴2: 752,图3233. 1972;海南植物志3: 7, 图581. 1974.
常绿乔木，高达18米; 幼枝被锈色绒毛，小枝被细短柔毛。叶互生，厚纸质，卵状长椭圆形或卵状矩圆形，长7-13厘米，宽2.5-5厘米，顶端短渐尖或渐尖，稀锐尖，具小尖头，基部圆形或截形，全缘或波状，上面绿色，幼叶上面被锈色绒毛，后脱落，下面被灰白色棉毛，侧脉每边11-15条，上面下陷，下面凸起，具明显网脉；叶柄长0.9-1.5厘米，被密短柔毛。聚伞花序组成腋生聚伞总状或聚伞圆锥花序，被锈色密绒毛，长2-5厘米，具长3-5毫米的总梗，花两性，5基数，花梗长1-2毫米；花萼5裂，萼片三角形，内面中部以上具凸起的中肋；花瓣匙形，具爪，与雄蕊等长；花盘厚，五边形；子房藏于花盘内，2-3室, 每室1胚珠，花柱2-3半裂。蒴果状核果，球形，直径1-1.2 (1.4)厘米，成熟时黑色；中部以下为萼筒所包围，外果皮不规则开裂，内有2-3个木质化的分核，成熟时沿腹缝线开裂，每核具1种子；果梗长3-4毫米；种子红色，有光泽，具膜质假种皮，顶端开口。花期10-12月，果期翌年3-5月。
产广东（海南岛）。生中海拔的丘陵或山地疏林中，或成大片纯林，喜光。菲律宾、马来西亚和印度尼西亚也有分布。模式标本采自菲律宾。
幼树生长迅速，是优良的速生造林树种；木材结构细致，是制作家具的良好用材。
《Flora of China》 Vol. 12 (2007)
Alphitonia incana (Roxburgh) Teijsmann & Binnendijk ex Kurz
麦珠子 mai zhu zi
Rhamnus incana Roxburgh, Fl. Ind. 2: 350. 1824 ["incanus"]; Alphitonia excelsa (Fenzl) Reissek ex Endlicher; A. philippinensis Braid; Ceanothus excelsus (Fenzl) Steudel; Colubrina excelsa Fenzl.
Trees, small to medium-sized, evergreen, rarely to 30 m tall. Young branches ± densely yellowish to whitish pubescent. Leaves alternate, papery to subleathery; petiole 9-15 mm, densely pubescent; leaf blade 7-13 × 2.5-5 cm, ovate-lanceolate or ovate-elliptic, abaxially yellowish pubescent, adaxially ferruginous tomentose when young, glabrescent, primary veins prominent abaxially, impressed adaxially, lateral veins 11-15 pairs, base acute or obtuse to rounded, margin entire or slightly undulate, apex acute to shortly acuminate. Flowers light green to yellowish, 4-5 mm in diam., bisexual, 5-merous, in terminal or axillary cymes. Pedicel 1-2 mm. Calyx tube shallowly hemispherical, outside densely brownish pubescent; sepals triangular, ca. 1.5 mm, adaxially ± distinctly keeled. Petals erect to recurved, spatulate, ca. as long as stamens, clawed. Disk pentagonous, shallow, lining calyx tube, glandular. Ovary obconical, ± completely immersed in disk, 2- or 3-loculed; style
conical, nearly to half divided into 2 or 3 slightly capitate stylar branches. Drupe greenish when young, black at maturity, globose to broadly ovoid, 1-1.2(-1.4) cm in diam., basally surrounded by persistent calyx tube; exocarp irregularly dehiscent, with 2 or 3 woody locules, along ventral suture dehiscent at maturity, locules 1-seeded; fruiting pedicel 3-4 mm. Seeds red, shiny, with membranous aril, often permanently attached to receptacle after fruit dehiscence. Fl. Oct-Dec, fr. Mar-May of following year.
Sparse forests on mountains and hills; middle elevations. Hainan [Indonesia, Malaysia, Philippines].
The trees grow rapidly when young. This species is a good source of fine wood for making furniture.