頭序金錦香檢視原始碼討論檢視歷史
頭序金錦香 |
中文名:頭序金錦香 拉丁學名:Osbeckia capitata Benth. 界:植物界 門:被子植物門 Angiospermae 綱:雙子葉植物綱 Dicotyledoneae 亞 綱:原始花被亞綱 Archichlamydeae 目:桃金娘目 Myrtiflorae 科:野牡丹科 Melastomataceae 亞 科:野牡丹亞科 Melastomatoideae 族:野牡丹族 Trib. Melastomateae 屬:金錦香屬 Osbeckia 組:金錦香組 Sect. Osbeckia 生長環境:海拔約2500米的山坡矮草地上 |
頭序金錦香(學名:Osbeckia capitata)是野牡丹科、金錦香屬的植物。分布在不丹、印度以及中國大陸的雲南等地,生長於海拔2,500米的地區,多生于山坡矮草地上,目前尚未由人工引種栽培。 [1]
頭序金錦香形態特徵
頭序金錦香,直立草本或亞灌木,高8-25厘米擴莖四棱形,被疏緊貼的糙伏毛,從基部分枝。葉片堅紙質,卵形,頂端急尖,基部圓形或近心形,長1.7-2.5厘米,寬0.9-1.3厘米,全緣,兩面被糙伏毛,5基出脈,葉面葉脈下凹,背面隆起,細脈不明顯;葉柄幾無,被糙伏毛。
頭狀花序,頂生,有花2-3朵,基部具葉狀總苞2-4枚;苞片卵形,具刺毛狀緣毛,兩面無毛 或僅背面中肋被疏糙伏毛;無花梗;花萼長1.5厘米,通常帶紅色,無毛,裂片4,卵形,與萼管等長,具緣毛,僅各裂片間外緣具1有刺毛突起,通常隨萼片脫落;花瓣紫紅色或較淺,倒卵形,長約1.5厘米;雄蕊常偏向1側,花絲與花葯等長,花葯黃色,頂部具長喙,喙長為花葯之半,藥隔向前方呈小瘤,向後方微膨大呈短距;子房卵形,頂端有剛毛16-20條。
蒴果卵形,4縱裂;宿存萼壇狀,頂端平截,直徑約7毫米,無毛。花果期6-9月。
Osbeckia capitata Benth. in Wall. Cat. no. 4072. 1829, nom. nud.; Naud. in Ann. Sci. Nat. ser. 3, 14: 65. 1850, descr.; Triana in. Trans. Linn. Soc. 28: 53. t. 4, fig. 37e. 1871; Guillaum. in Lecte. Not. Syst. 2: 311. 1913; 雲南植物志2: 80. 1979.; C. Chen in Guihaia 2 (4): 183. fig. 1, 7-9. 1982
Herbs or shrublets, 8-25 cm tall, erect. Stems 4-sided, sparsely appressed strigose. Petiole very short, strigose; leaf blade ovate, 1.7-2.5 × 0.9-1.3 cm, stiffly papery, both surfaces strigose, secondary veins 2 on each side of midvein, tertiary veins inconspicuous, base rounded to subcordate, margin entire, apex acute. Inflorescences terminal, capitate, 2- or 3-flowered, with 2-4 bracteal leaves at base; bracts sessile, ovate, both surfaces glabrous or sparsely strigose only on midvein. Hypanthium often reddish, ca. 1.5 cm, glabrous. Calyx lobes 4, ovate, ca. 1.5 cm, setiform tuberculate among lobes, margin ciliate. Petals 4, purple to pale purple, obovate, ca. 1.5 cm, margin ciliate. Stamens 8, inclined to one side; filaments of equal lengths; anthers narrowly lanceolate, long beaked; connective abaxially with a short basal spur, adaxially slightly inflated tuberculate. Ovary ovoid, 4-celled, apex with 16-20 setae. Capsule purplish red, ovoid, ca. 7 × 7 mm, glabrous. Fl. and fr. Jun-Sep.
頭序金錦香生長環境
生於海拔約2500米的山坡矮草地上。
頭序金錦香分布範圍
頭序金錦香本種提示
本種與金錦香O. chinensis Linn.var. chinensis相近,但以葉卵形,葉面葉脈下凹,花序少花,花萼無毛及分布於大理等地,可以區別。