毛九節檢視原始碼討論檢視歷史
| 毛九節 |
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中文名:毛九節 拉丁學名:Psychotria pilifera Hutchinson 別 名:牙歪硬、花葉九節木、 毛九節木、小功勞、牙歪摁 界:植物界 門:被子植物門 綱:木蘭綱 亞 綱:菊亞綱 目:茜草目 科:茜草科 亞 科:茜草亞科 族:九節族 屬:九節屬 |
毛九節(máo jiǔ jié)，學名：Psychotria pilifera Hutchinson，俗名：牙歪硬、花葉九節木、毛九節木、小功勞、牙歪摁，異名：Psychotria siamica ，是茜草科，九節屬植物。為灌木，高0.75-1.75米；小枝密被棕褐色捲曲長毛。果紅色，長圓狀橢圓形，無毛，長0.8-1厘米，直徑4-5毫米，有縱棱，頂冠以宿萼片，宿萼片外面被長毛；種子2，黑色，腹面稍凹下，長5-6毫米。果期8-12月。 [1]
毛九節形態特徵
灌木，高0.75-1.75米；小枝密被棕褐色捲曲長毛。葉對生，膜質或紙質，橢圓形、橢圓狀倒卵形或長圓狀倒披針形，有時稍彎，長8-17.5厘米，寬3-9.5厘米，頂端短漸尖或短尖；
基部鈍圓、短尖或楔形，邊全緣，具緣毛，干時暗紅褐色，兩面被緊貼的長毛，在中脈較密，中脈在上面平或微凹，在下面凸起，側脈8-15對，與中脈成45度角開出，在上面平，在下面凸起；
葉柄長1-5厘米，密被棕褐色捲曲長毛，毛常漸脫落；托葉膜質，脫落，卵狀三角形，頂端2裂，漸尖，外面密被棕褐色捲曲長毛，長達2厘米。
聚傘花序頂生或腋生，長6-8厘米，寬5-6厘米，總花梗和分枝密被棕褐色捲曲長毛，總花梗長3.5-6.5厘米；苞片線狀披針形，漸尖，長達1厘米，被疏緣毛。
果紅色，長圓狀橢圓形，無毛，長0.8-1厘米，直徑4-5毫米，有縱棱，頂冠以宿萼片，宿萼片外面被長毛；種子2，黑色，腹面稍凹下，長5-6毫米。果期8-12月。
Shrubs, 0.75-1.75 m tall; stems densely villous to villosulous. Petiole 1-5 cm, densely villous; leaf blade drying papery or membranous, dark reddish brown, elliptic, elliptic-obovate, or elliptic-oblong, 8-23 × 3-11 cm, moderately to densely and similarly strigose to hirsute on both surfaces, base acute or obtuse to rounded, margins flat and ciliate, apex acute to shortly acuminate with tip to 1 cm and sometimes curved; secondary veins 5-15 pairs, not forming a submarginal vein, apparently without domatia; stipules caducous to tardily deciduous, ovate-triangular, interpetiolar, 15-25 mm, densely hirsute to villosulous, 2-lobed for ca. 1/2, lobes narrowly triangular, acuminate to caudate.
Inflorescences terminal becoming pseudoaxillary, congested-cymose to subcapitate, densely hirsute or villous, pedunculate; peduncle 3-6.5 cm; branched portion pyramidal to subglobose, 2-3.5 × 2-5 cm; bracts linear-lanceolate, 4-10 mm, ciliate, acuminate. Flowers subsessile. Calyx glabrescent to sparsely villosulous; hypanthium portion obconic, ca. 1 mm; limb 2.5-3.5 mm, lobed for ca. 2/3; lobes narrowly triangular to linear-lanceolate. Corolla in bud funnelform, outside villosulous, to 4 mm. Drupes red, oblong-ellipsoid, 8-10 × 4-5 mm, sparsely villosulous to glabrescent; pyrenes 3- or 4-ribbed. Fl. Jul, fr. Aug-Dec.
The protologue described the inflorescences as sometimes axillary, but this appears to be a description of the position separated here as pseudoaxillary. W. C. Chen (in FRPS 71(2): 59. 1999) described the petioles as becoming glabrescent with age and the secondary leaf veins as impressed above, but these conditions have not been seen on any of the specimens studied.The protologue described the inflorescences as sometimes axillary, but this appears to be a description of the position separated here as pseudoaxillary. W. C. Chen (in FRPS 71(2): 59. 1999) described the petioles as becoming glabrescent with age and the secondary leaf veins as impressed above, but these conditions have not been seen on any of the specimens studied.
毛九節生長環境
生長於海拔1500-1700米的山谷溪邊林中。● Forests in ravines; 1300-1700 m. Yunnan.
毛九節分布範圍
主要分布在雲南省（金平、屏邊、蒙自、硯山、瀾滄）。模式標本采於雲南蒙自。
分類文獻
Psychotria pilifera Hutchins. in Sargent, Pl. Wils. 3: 415. 1916; 雲南種子植物名錄, 下冊: 1269. 1984.