穗萼葉下珠

穗萼葉下珠
來自植物智的圖片

中文名:穗萼葉下珠界:植物界門:被子植物門綱:雙子葉植物綱亞綱:原始花被亞綱目:大戟目亞目:大戟亞目科:大戟科亞科:葉下珠亞科屬:葉下珠屬分布區域:中國雲南西南地區

穗萼葉下珠(suì è yè xià zhū)，學名：Phyllanthus fimbricalyx P. T. Li，大戟科灌木，高約1米。產於雲南西南部，生於海拔1000-1100米山谷密林中。 ^[1]

穗萼葉下珠形態特徵

灌木，高約1米；莖灰褐色，與小枝和葉柄同樣被粗硬毛；枝條圓柱形，長達70厘米。葉片紙質，長圓形或長卵形，長7-12厘米，寬3-4.5厘米，頂端短漸尖；

基部圓，不對稱，上面無毛，下面被糠秕狀毛；側脈每邊7-8條；葉柄長約3毫米；托葉卵狀披針形，長3- 5毫米，着生於葉柄基部兩側。

花紫紅色，雌雄同株，3-7朵組成腋生的聚傘花序，總花序梗短；苞片披針形，膜質；雄花：生於枝條下部，花梗絲狀，長1-1.5厘米，被疏短柔毛；

萼片4，呈花瓣狀，長卵形，長約2毫米，外面被微毛，內面無毛，邊緣呈流蘇狀。雄蕊4，花絲合生，藥室2，橫裂；花盤腺體4；

雌花：生於枝條上部，花梗長約1厘米，上部較粗，被短柔毛；萼片5，呈花瓣狀，長橢圓形，長約3毫米，寬約1.5毫米，兩面被微毛，邊緣呈流蘇狀；

花盤杯狀，圍繞子房，且與子房等高，頂端邊緣淺波狀；子房近球形，3室，每室2顆胚珠，花柱3，頂端2深裂，裂片直立，線形。花期6月。

Shrubs, ca. 1 m tall, monoecious; stem gray-brown, hispid; branches terete, to 70 cm, hispid. Stipules ovate-lanceolate, 3-5 mm; petiole ca. 3 mm, hispid; leaf blade oblong or oblong-ovate, 7-12 × 3-4.5 cm, papery, abaxially scurfy-hairy, adaxially glabrous, base rounded, oblique, apex shortly acuminate; lateral veins 7 or 8 pairs. Inflorescence an axillary cyme, 3-7-flowered, those along proximal part of branchlet male, distal inflorescences female; peduncle short; bracts lanceolate, membranous.

Male flowers: pedicels filamentous, 1-1.5 cm, sparsely pubescent; sepals 4, oblong-ovate, ca. 2 mm, purple, puberulent outside, glabrous inside, margin fimbriate; disk glands 4; stamens 4; filaments connate; anthers transversely dehiscent.

Female flowers: pedicels ca. 1 cm, thicker at apex, pubescent; sepals 5, oblong-elliptic, ca. 3 × 1.5 mm, both surfaces puberulent, margin fimbriate; disk cup-shaped, as long as ovary and enclosing it, apex slightly undulate; ovary subglobose, 3-celled; styles 3, deeply bifid at apex, lobes erect, linear. Fl. Jun-Sep, fr. Aug-Oct.

分類文獻

Phyllanthus fimbricalyx P. T. Li in Acta Phytotax. Sin. 25: 380. fig. 4. 1987.