水石榕 hainan elaeocarpus

上文看到宮燈懸掛的吊瓜樹,本文欣赏垂首的小碧玉 – 水石榕。

水石榕無論花和葉都有種來自外星的惑美。葉片尖長有鋸齒,葉紋明亮。淡酡紅花蕾一到時節掛滿樹,俏麗小鈴子如風鈴錘,仿佛聽到她們在風中搖晃。花開,流蘇盞盞,另一種銷魂。讓我引述植物學上的形容,風情盛載:「花瓣倒卵形,有毛,基部楔尖,頂端深裂,裂片 35 條,絲狀 …… 雄蕊多數,花藥頂端突出呈芒刺狀。」

hainan elaeocarpus can be considered a close relative. it originates from hainan island. it is a popular horticulture species in hong kong. gardeners especially like to plant them next to water features in parks when you see them in hong kong park, kowloon park or lai chi kok park, you do see how good the tree and water complement each other. hainan elaeocarpus has unique blossom, simply remind me of the sensational fashion of the 1920s and I almost picture lines of short-hair girls with white one piece dresses lining with fringes dancing all the way.

a nice and simple description of the plant, quoted from asiaplant.net : mid-canopy trees up to 37 m tall and 56 cm dbh. stipules dropped early. leaves alternate, simple, penni-veined, glabrous, short petioled, margin inconspicuously toothed. flowers ca. 18 mm in diameter, white-yellow, petals with fimbriate margins, placed in racemes. fruit ca. 21 mm long, green-blue, fleshy drupe.

水石榕又名海南杜英。可以猜得出原產中國海南。《中國百科網》說:廣東,越南也有分佈。(按:網上資料都集中來自香港和中國,連臺灣都比較少)喜溫暖氣候和濕潤環境,常見於野生平地、高山的山谷。這常綠喬木在香港廣泛種植,大型公園如香港公園、九龍公園、荔枝角公園的水池旁都見她們的芳蹤。

水石榕 hainan elaeocarpus (elaeocarpus hainanensis) – 植物界 plantae kingdom | 被子植物門 magnoliophyta division | 雙子葉植物綱 magnoliopsida class | 酢漿草目oxalidales order | 杜英科elaeocarpaceae family | 杜英屬elaeocarpus genus | 種:水石榕 e. hainanensis species

參考 reference:

  • 水石榕是一種常綠小喬木植物,可高達8米。嫩枝無毛。葉狹披針形或倒披針形,頂端急尖而鈍頭,葉基部漸狹尖,邊緣有小鋸齒,葉腹背兩面均無毛,革質,單葉,互生,聚生於枝頂,側脈14-16對,長約7-15厘米,寬約1.4-2.8厘米,葉柄長約1-2厘米。
  • 花為總狀花序腋生,有花2-6朵,比葉略短或與葉等長,花白色,兩性,直徑約3-4厘米;苞片寄存,葉狀,薄膜質,卵圓形,邊緣有齒,基部微心形,無柄,長約8-14毫米;花梗長約2.5-4厘米,披短柔毛;萼片5,狹披針形,長約1.8-2.4厘米;花瓣倒卵形,有毛,基部楔尖,頂端深裂,裂片35條,絲狀,花瓣與萼片等長;雄蕊多數,花藥頂端突出呈芒刺狀;子房無毛,2室,每室有胚,珠2顆,花期6-7月。
  • 果為紡錘形核果,光滑,兩端漸尖,長約2-3厘米,寬約0.8-1.2厘米,形如橄欖。花與果均垂掛於樹上。《維基百科
  • 杜英屬的植物,多屬熱帶和亞熱帶的喬木或灌木。
  •  《香港植物標本室
  • 中山大學校園植物圖鑑
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