台湾胶木Palaquium formosanum

中文名(Chinese Name):台湾胶木
学名(Scientific Name):Palaquium formosanum Hayata
英文名(English Common Name):
别名(Chinese Common Name):大叶山榄
异名(Synonym):Palaquium hayatae H. J. Lam  Palaquium paucivenosum H.J.Lam  Croixia formosana (Hayata) Baehni
科属(Family & Genus):山榄科Sapotaceae胶木属Palaquium
形态特征(Description):乔木,高5-7(20)米;树皮黑褐色,纵裂;小枝圆柱形,暗褐色,被红褐色柔毛或无毛,叶痕显著。托叶披针形,长3毫米,宽1.5毫米,先端急尖,外面被灰色柔毛,内面无毛,早落。叶互生,密聚于枝顶,厚革质,倒卵状长圆形、倒卵形或匙形,长10-17厘米,宽4.5-7.5厘米,先端圆或微心形,基部宽楔形,两面无毛,或沿中脉和侧脉簇生白色绒毛,幼叶两面通常被红褐色绒毛,中脉在上面明显,下面圆而凸起,侧脉10-12对,成50度角上升,先端弧曲,上面明显,下面凸起,网脉少数,远离,两面均明显;叶柄粗,长7-12毫米,上面平坦,具2-4条纵肋,被暗黄色绒毛。花单生或3-6朵簇生于叶腋;花梗长7-12毫米,具棱,果时延长至28毫米并加粗,被锈黄色柔毛;花萼裂片阔卵形,长4-4.5毫米,宽4-5毫米,先端近急尖或钝,外面被褐色绒毛,内面无毛,果时扩大,长6毫米,宽5毫米,内轮裂片膜质,无毛,边缘疏被睫毛;花冠淡黄灰白色,6裂,裂片披针形,长1.5-1.7厘米,宽4毫米,被微柔毛;能育雄蕊12-15枚,着生于花冠上,较花冠短,花丝丝状,花药卵形,疏被锈色绢毛,2室,外向开裂;子房6室,每室1胚珠,花柱圆柱形,伸出花冠外,无毛。浆果椭圆形,通常偏斜,长4-5厘米,宽1.5-2厘米,先端圆或近平截,通常具长15毫米的宿存花柱,基部渐狭,果皮肉质,无毛;种子1-4,纺锤形,两面压扁,长3.5厘米,宽1.1厘米,厚0.9厘米,先端钝,基部急尖,褐色,具光泽,疤痕长为种子的一半,无胚乳,胚根伸出。
分布(Distribution):产台湾,生于低海拔林中。菲律宾也产。
用途(Use):木材可用,果可食。
引自中国植物志英文版:FOC Vol. 15 Page 207   
Palaquium formosanum Hayata, J. Coll. Sci. Imp. Univ. Tokyo. 30: 184. 1911.
台湾胶木 tai wan jiao mu | Sapotaceae  | Palaquium
Palaquium hayatae H. J. Lam.
Trees 5--7(--20) m tall. Bark dark brown. Branchlets terete, reddish brown tomentose or glabrous, with distinct leaf scars. Leaves alternate, closely clustered at end of branchlets; stipules lanceolate, grayish tomentose abaxially, early deciduous; petiole 7--12 mm, yellowish puberulent; leaf blade thickly leathery, ovate-oblong, obovate, or spathulate, 10--17 X 4.5--7.5 cm, both surfaces glabrous or with clustered white hairs on veins, cinnamomous puberulent on veins when young, base broadly cuneate, apex rounded to cordate, lateral veins 10--12 pairs. Flowers axillary, solitary or in clusters of 3--6. Pedicels angular, 7--12 mm, thickened in fruit and to 2.8 cm, yellowish rust colored tomentose. Sepals broadly ovate, 4--4.5 X 4--5 mm, outside brownish tomentose, enlarged in fruit and to ca. 6 X 5 mm. Corolla pale yellowish gray, 6-lobed. Stamens 12--15, included. Ovary 6-locular. Fruit ellipsoid, often oblique, 4--5 X 1.5--2 cm, apex rounded to subtruncate, often with a ca. 1.5 cm persistent style. Seeds fusiform, compressed, ca. 3.5 X 1.1 X 0.9 cm.
Forests; low elevations. Taiwan [Philippines]
No specimen has been seen by the authors. The description is based on the original protolog and P. Royen (Blumea: 10: 472. 1960).
Timber. Fruit edible.
 台湾胶木Palaquium formosanum

台湾胶木Palaquium formosanum
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