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刺毛柏拉木 |
中文学名:刺毛柏拉木 界:植物界 门:被子植物门Angiospermae 纲:双子叶植物纲Dicotyledoneae 目:桃金娘目Myrtiflorae 科:野牡丹科 属:柏拉木属 种:刺毛柏拉木 生长环境:山谷林下 |
刺毛柏拉木,拉丁文名:Blastus setulosus Diels. ,为野牡丹科、柏拉木属灌木,高约1米;小枝近圆柱形,分布于广西、广东。 [1]
刺毛柏拉木形态特征
刺毛柏拉木 灌木,高约1米;小枝近圆柱形,初时被腺状褐色柔毛,以后无毛。叶片纸质,长圆形或披针状长圆形,顶端渐尖,基部楔形,长7-12厘米,宽2-3.5厘米,全缘或具极不明显的浅波状齿,齿尖具刺毛,3(-5)基出脉,若为5条时近边缘的两条极细且极靠边缘,叶面被极细的微柔毛及疏糙伏毛,基出脉微凹,背面被极细的微柔毛,基出脉隆起,侧脉微隆起,均密被微柔毛;叶柄长1.5-3.5厘米,被密微柔毛。
伞状聚伞花序,有花约3(-5)朵,生于无叶的茎上,总梗几无,花梗极短或几无;花萼钟状漏斗形,具四棱,密被小腺点,长约3.5毫米,裂片卵形或卵状三角形,长不到1毫米;花瓣白色,卵形(原描述狭长的菱形)顶端渐尖,具小尖头,1侧偏斜,长约4毫米,宽约2.5毫米;雄蕊4,等长,花丝长3-4毫米,花药长约4.5毫米,基部无瘤(原描述具小瘤),药隔微膨大;子房下位,坛形,顶端具4突起,被小腺点。
蒴果椭圆形,4裂;宿存萼与果等大等长,檐部平截,被小鳞片。花期约7月,果期约8月。[2]
Blastus setulosus Diels in Engl. Bot. Jahrb. 65: 106. 1932; H. L. Li in Journ. Arn. Arb. 25: 15. 1944.
Shrubs to 1 m tall. Branches subterete, with brown glandular trichomes when young, glabrescent. Petiole 1.5-3.5 cm, densely puberulous; leaf blade oblong to lanceolate-oblong, 7-12 × 2-3.5 cm, papery, abaxially minutely puberulous especially along veins, adaxially minutely puberulous and sparsely strigose, secondary veins 1(or 2) on each side of midvein, base cuneate, margin entire or inconspicuously denticulate with each tooth having a terminal seta, apex acuminate. Inflorescences axillary a leaf scars, umbellate cymose, 3(-5)-flowered; peduncle almost absent. Flowers pedicellate to nearly sessile. Hypanthium campanulate-funnelform, ca. 3.5 mm, 4-sided, densely glandular. Calyx lobes ovate to ovate-triangular, to 1 mm. Petals 4, white, ovate, ca. 4 × 2.5 mm, inclined to one side, apex acuminate. Stamens 4; filaments 3-4 mm; anthers lanceolate, ca. 4.5 mm, not tuberculate at base; connective slightly inflated. Ovary inferior, urceolate, 4-celled, glandular. Capsule ellipsoid, small squamose. Fl. Jul, fr. Aug.
刺毛柏拉木生长环境
生长于海拔250-860米的山谷林下。
刺毛柏拉木分布范围
刺毛柏拉木分布于广西、广东(海南岛未发现)。 模式标本采自广西金秀。