3. Polygala arillata Buchanan-Hamilton ex D. Don, Prodr. Fl. Nepal. 199. 1825. 荷包山桂花 he bao shan gui hua Polygala arillataCredit: Harvard University Herbaria Polygala arillata var. ovata Gagnepain.Shrubs or small trees, 1-5 m tall. Branchlets sometimes weakly ridged, densely pubescent; terminal buds densely yellow-brown felted-hairy. Petiole ca. 1 cm, pubescent; leaf blade green, elliptic or oblong-elliptic to oblong-lanceolate, 6.5-14 × 2-2.5 cm, papery, both surfaces sparsely pubescent especially on veins, glabrescent, midvein raised abaxially, depressed adaxially, lateral veins 5 or 6 pairs, anastomosing near margin, veinlets reticulate, evident, base cuneate or obtuse, margin entire, ciliate, apex acuminate. Racemes opposite to leaves, drooping, densely pubescent, 7-10 cm, to 25(-30) cm at fruiting. Pedicel ca. 3 mm, pubescent; bract 1, basal, triangular-acuminate. Flowers 1.3-2 cm. Sepals 5, unequal, ciliate, caducous after anthesis; outer sepals 3, small, upper one deeply cucullate, 8-9 mm, lateral sepals ovate, ca. 5 × 3 mm, apex rounded; inner sepals 2, red-purple, petaloid, oblong-obovate, 1.5-1.8 cm, nearly at right angle between them and petals. Petals 3, connate in lower 2/3, yellow, slightly fleshy; keel longer than lateral petals, apex with multifid appendages. Stamens 8; filaments ca. 1.4 cm, lower 2/3 united, forming an open staminal sheath, adnate with petals; anthers ovoid. Disk fleshy. Ovary compressed globose, ca. 3 mm in diam., narrowly winged, ciliate; style 8-12 mm, curved toward apex, apex 2-lobed; stigma on lower lobes. Capsule purple-red at maturity, baccate, broadly reniform or slightly cordate, ca. 1 cm, ca. 1.3 cm in diam., margin winged, ciliate, apex emarginate, mucronate; carpels with concentric circles costate. Seeds brown-red to black, globose, ca. 4 mm in diam., very sparsely pubescent, truncate at hiliferous end, shiny, with large helmet-shaped, somewhat irregular, projecting strophiole. Fl. May-Oct, fr. Jun-Nov.Forests, forest margins on mountain slopes; (700-)1000-2800(-3000) m. Anhui, Fujian, Guangxi, Guizhou, Henan, Hubei, Jiangxi, S Shaanxi, Sichuan, Xizang, Yunnan, Zhejiang [Bhutan, Cambodia, India (Darjeeling, Sikkim), Malaysia, Myanmar, Nepal, Sri Lanka, Thailand, Vietnam].Material with ovate leaves has been separated as Polygala arillata var. ovata (in Lecomte, Fl. Indo-Chine, Suppl. 1: 231. 1939); however, leaf shape, along with other characters, is very variable in P. arillata. Thus this variety, along with P. arillata var. laevicarpa R. N. Banerjee & G. S. Giri (Candollea 42(2): 55. 1987) described from Nepalese material, does not warrant recognition.【引自:Flora of China】
灌木或小乔木,高1-5米;小枝密被短柔毛,具纵棱;芽密被黄褐色毡毛。单叶互生,叶片纸质,椭圆形、长圆状椭圆形至长圆状披针形,长6.5-14厘米,宽2-2.5厘米,先端渐尖,基部楔形或钝圆,全缘,具缘毛,叶面绿色,背面淡绿色,两面均疏被短柔毛,沿脉较密,后渐无毛,主脉上面微凹,背面隆起,侧脉5-6对,于边缘附近网结,细脉网状,明显;叶柄长约1厘米,被短柔毛。总状花序与叶对生,下垂,密被短柔毛,长7-10厘米,果时长达25(-30)厘米;花长13-20毫米,花梗长约3毫米,玻短柔毛,基部具三角状渐尖的苞片1枚;萼片5,具缘毛,花后脱落,外面3枚小,不等大,上面1枚深兜状,长8-9毫米,侧生2枚卵形,长约5毫米,宽约3毫米,先端圆形,内萼片2枚,花瓣状,红紫色,长圆状倒卵形,长15-18毫米,与花瓣几成直角着生;花瓣3,肥厚,黄色,侧生花瓣长11-15毫米,较龙骨瓣短,2/3以下与龙骨瓣合生,基部外侧耳状,龙骨瓣盔状,具丰富条裂的鸡冠状附属物;雄蕊8,花丝长约14毫米,2/3以下连合成鞘,并与花瓣贴生,花药卵形,顶孔开裂;子房圆形,压扁,径约3毫米,具狭翅及缘毛,基部具肉质花盘,花柱长8-12毫米,向顶端弯曲,先端呈喇叭状2裂,柱头生于下裂片内。蒴果阔肾形至略心形,浆果状,长约10毫米,宽13毫米,成熟时紫红色,先端微缺,具短尖头,边缘具狭翅及缘毛,果爿具同心圆状肋。种子球形,棕红色,径约4毫米,极疏被白色短柔毛,种脐端平截,圆形微突起,亮黑色,种阜跨摺状。花期5-10月,果期6-11月。【引自:中国植物志】