莖花守宮木檢視原始碼討論檢視歷史
| 莖花守宮木 |
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中文學名:莖花守宮木 拉丁學名:Sauropus bonii Beille 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 族:葉下珠族 屬:守宮木屬 |
莖花守宮木（jīng huā shǒu gōng mù，學名：Sauropus bonii Beille）大戟科守宮木屬植物。葉片紙質，長橢圓形、卵狀披針形或倒披針形，長7-14厘米，寬2.5-5厘米；主要分布於廣西龍州和天峨，越南和泰國等地。 [1]
莖花守宮木形態特徵
灌木，高達3米；莖皮灰色；枝條具棱，綠色；全株無毛。
葉片紙質，長橢圓形、卵狀披針形或倒披針形，長7-14厘米，寬2.5-5厘米，頂端漸尖或短漸尖，基部寬楔形，上面深綠色，下面淡綠色；側脈每邊7-11條，斜升至葉緣前彎曲連結；葉柄長3-6毫米；托葉三角形，長3-5毫米,着生於葉柄基部兩側。
總狀聚傘花序着生於莖的下部或基部，長6-15厘米，常下垂，雌雄同序；花序梗和花梗的基部均分別有覆瓦狀排列的苞片和小苞片；
雄花：花梗絲狀，長2-4毫米；花萼杯狀，邊緣波狀，直徑3-5毫米，膜質，淡黃色，有紅色斑紋；花盤6淺裂，貼生於花萼上；雄蕊3，合生呈柱狀，花葯長圓形；
雌花：花梗長2-3毫米；花萼鍾狀，直徑3-5毫米，6裂，裂片匙形或倒卵形，2輪，外輪的長3-5毫米，內輪的長2-4毫米；子房卵圓形或圓球形，3室，每室2顆胚珠，花柱3，分離，頂端2裂，裂片向下彎。
蒴果近圓球狀，直徑約2厘米，高約1.5厘米，6爿裂。 [2]
Sauropus bonii Beille in Lec. Fl. Gen. Indo-Chine 5: 651. 1927; Airy Shaw in Kew Bull. 26 (2): 334. 1972; P. T. Li in Guihaia 3(3): 168. 1983, et in Acta Phytotax. Sin. 25: 133. 1987.
Shrubs to 3 m tall, monoecious, glabrous throughout; stem gray; branches angular, green. Stipules triangular, 3-5 mm; petiole 3-6 mm; leaf blade oblong-elliptic, ovate-lanceolate, or oblanceolate, 7-14 × 2.5-5 cm, papery, abaxially greenish, dark green adaxially, base broadly cuneate, apex acuminate or shortly so; venation pinnate, lateral veins 7-11 pairs, obliquely ascending, arcuately anastomosing to before margins. Inflorescences cauliflorous, from base to lower part of stem, narrow racemelike thyrses, usually pendent, 6-15 cm, bisexual; peduncles and pedicels with imbricate bracts and bracteoles. Male flowers: pedicels filamentous, 2-34 mm; calyx cup-shaped, 3-5 mm in diam., margins undulate, membranous, yellowish, with red streak; disk shallowly 6-fid, adnate to calyx; stamens 3; filaments connate into a cylinder; anthers oblong. Female flowers: pedicels 2-3 mm; calyx campanulate, 3-5 mm in diam., 6-lobed; sepals biseriate, spatulate or obovate, outer 3-5 mm, inner 2-4 mm; ovary ovoid or globose, 3-locular; styles 3, free, bifid at apex, arms recurved. Capsules subglobose, ca. 1.5 × 2 cm, prominently 6-valved when mature. Fl. Apr-Aug, fr. Jun-Oct.
Forests or scrubby slopes on limestone; 200-500 m. NW and SW Guangxi (Longzhou, Tian』e) [Vietnam].
Records of Sauropus bonii from Thailand seem to be based on a misidentification of S. disciflorus Welzen, which has much shorter inflorescences.
莖花守宮木生長環境
生長於海拔200-500米石灰岩山地林下或山坡灌木叢中。