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毛天料木檢視原始碼討論檢視歷史

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毛天料木

中文學名:毛天料木

拉丁學名:Homalium mollissimum Merr.

界:植物界

門:被子植物門

綱:雙子葉植物綱

目:側膜胎座目

科:大風子科

屬:天料木屬

分布區域:產海南越南北部也有

毛天料木(máo tiān liào mù,學名 Homalium mollissimum Merr.),大風子科天料木屬植物。灌木或小喬木,高6-7米;樹皮灰色或灰褐色;生於低海拔山地林中。我國海南越南北部有分布。 [1]

毛天料木形態特徵

灌木或小喬木,高6-7米;樹皮灰色或灰褐色;小枝圓柱形,幼時密被短柔毛,逐漸脫落減少。

葉革質,橢圓形或長圓橢圓形,稀長圓形,長5-11厘米,寬2.5-5厘米,先端急尖至短尾尖,基部楔形至寬楔形,邊緣有疏離淺鋸齒,幼時兩面密被蒼黃色柔毛,以後逐漸減少,中脈和側脈在上面平坦,下面突起,側脈6-8對;葉柄長2-5毫米,密被柔毛;托葉披針形,長約1厘米,被柔毛,早落。

花白色,多數,以2朵簇生或單個而排成總狀,總狀花序頂生或生於上部的葉腋,長4-8厘米;花序梗和花梗密被蒼黃色柔毛;花梗長2-3毫米;花直徑4-6毫米,中部具節;萼筒狹陀螺狀,長約2毫米,有明顯縱槽紋,外面密被蒼黃色柔毛;

萼片線形或倒披針狀線形,長4-5毫米,寬1-1.5毫米,先端稍鈍,兩面疏被長柔毛,邊緣密被睫毛;

花瓣倒披針形,稍比萼片長,先端尖或鈍,兩面被長柔毛,邊緣密被睫毛,結果時有明顯脈紋;雄蕊7,花絲與花瓣近等長,下部被開展長柔毛;子房被開展長柔毛,花柱3-4,絲狀,長約3毫米,結果時加倍之,下部被開展長柔毛;側膜胎座3-4,每個有胚珠3-4顆。

蒴果倒圓錐形,長5-7毫米,被長柔毛。花期6-12月,果期7月至次年春季。 [2]

Homalium mollissimum Merr. in Lingn. Sci. Journ. 14: 39. 1935; How et Ko in Acta Bot. Sin. 8 (1): 42. 1959; 海南植物志1: 462. 1964; M. Lescot in Fl. Cambodge Laos et Vietanm 11: 86. 1970; G. S. Fan in Journ. Wuhan Bot. Res. 8 (2): 132. 1990; 廣東植物志2: 114. 1991.

Shrubs or small trees, 6-7 m tall; bark gray or gray-brown; branchlets terete, densely pubescent, hairs spreading, yellowish. Stipules sometimes persistent, 5-10 mm, linear, narrowly elliptic, or obovate, pubescent with long white hairs, margin toothed or erose; petiole 2-5 mm, densely pubescent; leaf blade elliptic or oblong-elliptic, rarely oblong or obovate, ca. 2 × as long as wide, 5-11 × 2.5-5 cm, leathery, both surfaces sparsely to densely yellow pubescent throughout, midvein and lateral veins raised abaxially, flat adaxially, lateral veins 6-8 pairs, base acute to rounded, margin remotely shallowly serrate, apex acute to shortly acuminate, acumen to ca. 7 mm. Inflorescence terminal or axillary, racemose, 4-8 cm; rachis densely pubescent, hairs spreading, yellowish white, long; bracts narrowly lanceolate to linear, 1-4 mm, papery, margin entire, toothed, or erose, pubescent, hairs spreading, white, long. Pedicels 2-3 mm, articulate above middle, densely pubescent, hairs spreading, yellowish, long. Flowers numerous, inserted along rachis singly or in pairs, white, 7- or 8-merous, 4-6 mm in diam. Calyx tube ca. 2 mm, conspicuously longitudinally ribbed, outside densely pubescent, hairs mostly as long as those on sepal and petal margins, spreading, yellowish; sepals linear or oblanceolate-linear, 3-5 × 1-1.5 mm, apex usually acute, both surfaces sparsely pubescent, hairs spreading, white, long; sepal margin densely ciliate, hairs spreading, white, long. Petals oblanceolate, slightly longer than sepals, apex acute or obtuse, both surfaces sparsely pubescent, hairs spreading, white, long; margin densely ciliate, hairs spreading, long, to 1.5-2 mm at petal apex. Disk glands minute. Stamens 7 or 8; filaments ca. equal to or overtopping petals, with long spreading hairs in lower part. Free part of ovary pubescent, hairs spreading, white, straight, ca. 1 mm or more; styles 3 or 4, ca. 3 mm, ca. 2 × longer at fruiting stage, hairy except for distal 1/4, hairs as for ovary; placentas 3 or 4, each with 3 or 4 ovules. Capsule 5-7 mm. Fl. Jun-Dec, fr. Jul-Jan of following year.

毛天料木生長環境

生長於低海拔山地林中。

毛天料木分布範圍

產於海南崖縣保亭昌江陵水萬寧樂東瓊中定安)。越南北部也有分布。模式標本采自鳳上村。

毛天料木主要價值

木材可供家具、農具及器具等用。

參考來源

  1. 毛天料木, 植物智, 2020-01-18
  2. 《中國植物志》 第52(1)卷 (1999) >> 031頁 PDF >> 毛天料木 Homalium mollissimum