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大苞藤黄

中文学名:大苞藤黄

拉丁学名:Garcinia bracteata

C. Y. Wu ex Y. H. Li in

Acta Phytotax.

界:植物界

门:被子植物门

纲:双子叶植物纲

亚 纲:原始花被亚纲

目:侧膜胎座目

亚 目:山茶亚目

科:藤黄科

亚 科:藤黄亚科

族:藤黄族

属:藤黄属

分布区域:云南广西

大苞藤黄,拉丁文名:Garcinia bracteata C. Y. Wu ex Y. H. Li 藤黄科藤黄属乔木,产云南南部至东南部和广西南部。生于石灰岩山杂木林中,海拔400-1300(-1750)米。 [1]

大苞藤黄形态特征

大苞藤黄, 乔木,高约8米。枝条粗壮,淡绿色,具纵条纹。

叶片革质,卵形,卵状椭圆形或长圆形,长8-14(-18)厘米,宽4-8厘米,顶端渐尖或短渐尖,稀钝,基部宽楔形或近圆形,背面淡绿色,中脉在上面下陷,下面隆起,侧脉明显,密集,20-30对,网脉少而不明显;叶柄粗壮,长1-1.5厘米。

花杂性,异株,花2-7朵伞形排列;花序通常腋生,雄花序偶有顶生;总梗长(1-)2-3厘米,先端具苞叶2枚,苞叶革质,卵形,或大或小;

花梗长0.6-1.3厘米,每花梗基部具阔卵形或卵形小苞片4枚,小苞片长约1.5毫米;萼片和花瓣开放后逐渐下垂;雄花具退化雌蕊,能育雄蕊约40枚,花丝连合成杯状,肉质,包围退化雌蕊,花药分离,药室4;

雌花具退化雄蕊约20枚,花丝连合成碟状,膜质,包围子房基部,雌蕊圆柱状,中部膨大,柱头盾形,光滑,边缘具不规则的浅裂,子房1室。

果序通常着果1个;果卵球形,顶端通常偏斜,成熟时长2.2-2.5厘米,残留的花被宿存,果柄长1-1.2厘米;种子1个。[2] 花期4-5月,果期11-12月。

Garcinia bracteata C. Y. Wu ex Y. H. Li in Acta Phytotax. Sin. 19 (4): 490. fig. 1. 1981.

Trees ca. 8 m tall. Branchlets greenish, robust, striate, glabrous. Petiole robust, 1-1.5 cm; leaf blade abaxially greenish, ovate, ovate-elliptic, or oblong, 8-14(-18) × 4-8 cm, leathery, midvein raised abaxially, impressed adaxially; secondary veins conspicuous, dense, 20-30 pairs, near margin anastomosing; tertiary veins few and inconspicuous, base broadly cuneate or subrounded, margin cartilaginous, involute, apex acuminate or shortly acuminate, rarely obtuse. Plant dioecious, flowers in 2-7-flowered umbels; umbels usually axillary but male ones occasionally terminal; peduncles (1-)2-3 cm, with a distal pair of foliar bracts; foliar bracts ovate, large or small, leathery; pedicels 0.6-1.3 cm, 4-bracteolate at base; bracteoles broadly ovate or ovate, ca. 1.5 mm; sepals and petals gradually deflexed after anthesis. Male flowers with staminodes; fertile stamens ca. 40; filaments fleshy, connate into a cup and enveloping pistillode; anthers free, 4-celled, cells longitudinally dehiscent. Female flowers: staminodes ca. 20; filaments membranous, connate into a disk, enveloping ovary base; ovary cylindric but dilated at middle, 1-loculed; stigma peltate, smooth, irregularly lobed. Infructescence usually 1-fruited. Fruit ovoid, usually oblique at apex, 2.2-4 cm, to 3 cm in diam. when mature, ± smooth, finely striate, stipitate, wilted tepals persistent. Seed 1. Fl. Apr-May, fr. Nov-Dec.

大苞藤黄生长环境

大苞藤黄生长于 大苞藤黄 Garcinia bracteata 石灰岩山杂木林中,海拔400-1300(-1750)米。

大苞藤黄分布范围

  大苞藤产于云南南部至东南部和广西南部。模式标本采自云南勐腊县

参考来源

  1. 大苞藤黄, 植物智, 2020-01-18
  2. 《中国植物志》 第50(2)卷 (1990) >> 099页 PDF