討論:野牡丹藤屬

山羊百科,林文智老師的植物、山岳、攝影紀錄

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5. MEDINILLA Gaud. 野牡丹藤屬

Branching shrubs, erect or scandent; branches terete, angular or winged. Leaves opposite or whorled, entire, often fleshy, glabrous or nearly so, longitudinally 3-9-nerved. Flowers in terminal panicles or lateral simple or compound cymes, white or rose, with or without bracts, 4- or 5- rarely 6-merous; calyx-tube ovoid or cylindric, the limbs truncate or obscurely toothed; stamens twice as many as the petals, equal or nearly equal (rarely unequal); anthers opening at the top by a pore; connectives not (or very shortly) produced at the base but having two appendages in front and a spur behind; ovary inferior, 4-6 celled, usually glabrous at the apex; styles filiform; ovules very many, the placentas axile. Berry crowned by the limb of the calyx; seeds very many, ovoid or subfalcate. Species about 400, tropical Africa, Madagascar, India, China, Taiwan, Pacific islands and northern Australia; two species in Taiwan. KEY TO SPECIES 1. Leaves 5-nerved; branch nodes densely surrounded with appendages; inflorescence terminal… 2. M. formosana

1. Leaves 3-nerved; branch nodes sparsely surrounded with appendages; inflorescence axillary… 1. M. hayataina

21.酸腳杆屬 Medinalla Gaud.

直立或攀援灌木,或小喬木,陸生或附生,莖常四棱形,有時具翅。葉對生或輪生,全緣或具齒,通常3-5基出脈,稀9條,側脈平行,細脈網狀,通常不明顯;具葉柄或無。聚傘花序或由聚傘花序組成的圓錐花序,頂生、腋生、生於老莖上或根莖的節上;苞片小,早落;花通常4數,稀5數,極少6數,花萼杯形、漏斗形、鐘形或圓柱形,澹部裂片明顯或不明顯,通常具小尖頭或小突尖,花瓣倒卵形至卵形,或近圓形,有時上部偏斜;雄蕊為花瓣數目的1倍,等長或近等長,常同形;花絲絲狀,花藥線形、披針形或長圓形,頂端具喙,單孔開裂,基部具小瘤或線狀突起物,藥隔微膨大,下延呈短距;子房下位,卵形,頂端平截或冠以與子房室同數的裂片,有時具隔片;花柱絲狀,柱頭點尖。漿果通常壇形、球形或卵形,頂端冠以宿存萼簷部,不開裂,通常具小突起;種子小,多數,倒卵形或短楔形,具明顯的小突起或光滑。

約400種,分佈於非洲熱帶、馬達加斯加、印度至太平洋諸島及澳大利亞北部。我國約16種,1變種,分佈于雲南、西藏、廣西、廣東及臺灣等省區。 本屬有的種果可食。

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