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云南蓝果树 Nyssa yunnanensis W. Q. Yin ex H. N. Qin & Phengklai

目前为止,中国西南野生生物种质资源库共保藏该物种: DNA材料12份;

  • 科:蓝果树科    Nyssaceae
  • 属:蓝果树属   Nyssa
  • 种:云南蓝果树   Nyssa yunnanensis

1形状描述

7. Nyssa yunnanensis W. Q. Yin ex H. N. Qin & Phengklai, Fl. China. 13: 303. 2007. 云南蓝果树 yun nan lan guo shu Type: China. Yunnan: Jinghong Shi, Puwen, 27 Mar 1957 (fl.), Yunnan Expedition 9102 (holotype, KUN).Validating Latin diagnosis: that of "Nyssa yunnanensis W. C. [sic] Yin" (C. Y. Wu & J. R. Fan in C. Y. Wu, Fl. Yunnan. 1: 292. 1977).Trees dioecious, 25-30 m tall, ca. 1 m d.b.h. Bark dark brown, shallowly fissured, lenticels conspicuous. Branches densely yellowish tomentose. Petiole 2-3 cm, thick; leaf blade abaxially gray-green, adaxially dark green, elliptic or obovate, 15-22 × 8-12 cm, thickly leathery, abaxially densely tomentose, midvein and secondary veins 14-18 pairs, more densely tomentose, base obtuse or subrounded, margin entire to slightly sinuate; apex acute. Staminate flowers many, in axillary umbels; peduncle 2-2.5 cm, thick; pedicels ca. 3 mm, tomentose. Calyx lobes ovate-triangular, ca. 0.5 mm. Petals 5, oblong, ca. 2 × 1 mm. Stamens 2-3 mm; filaments linear. Female flowers not seen. Drupes 4 or 5 in head, purplish brown, ellipsoid, ca. 2 cm, ca. 1 mm in diam.; peduncles ca. 2 cm. Seeds slightly flattened, with 7 lengthwise grooves. Fl. Mar, fr. Sep.● Dense forests in valleys; 500-1100 m. S Yunnan.When Nyssa yunnanensis was originally described by Wu and Fan (loc. cit.), two gatherings were indicated as types, one flowering and one fruiting, with the result that the name was not validly published (see Art. 37.2 of the Vienna Code).Nyssa yunnanensis was listed as endangered in China by Xu (in Fu & Jin, China Pl. Red Data Book 1: 477. 1992). Also see SUN Bao-Ling & ZHANG Chang-Qin. 2007. A revised description of Nyssa yunnanensis (Nyssaceae). Acta Bot. Yunnan. 29(2): 173-175.【引自:Flora of China】

大乔木,高25-30米,胸径约l米;树皮深褐色,常现小纵裂;小枝粗壮,直径5毫米,微呈棱角状,当年生枝密被黄绿色微绒毛,二年生以上枝被宿存的黄褐色微绒毛;皮孔显著,近圆形或椭圆形,淡白色或淡黄白色;冬芽锥形,鳞片镊合状排列,密被黄绿色绒毛。叶厚纸质,椭圆形或倒卵形,稀长椭圆形,长15-22厘米,宽8-12厘米,顶端钝尖,具短尖头,基部钝形或近圆形,稀楔形,边缘全缘或微呈浅波状,上面深绿色,干燥后橄榄色,下面除叶脉深黄色外其余部分淡绿色,干燥后灰绿色,密被黄绿色微绒毛,叶脉上更密,中脉在上面微下凹,在下面凸起,侧脉14-18对,与中脉成40度的角开展,上部略向内弯曲;叶柄粗壮,长2-3厘米,近圆柱形,上面微呈浅沟状,密被黄绿色微绒毛。花单性,异株,由叶腋或叶已脱落的叶痕腋芽生出;雄花多数成伞形花序,花梗长约3毫米,被绒毛,总花梗粗壮,圆柱形,长2-2.5厘米,密被黄绿色微绒毛,单生于叶腋或叶已脱落的叶痕内侧;花托盘状;花萼有萼片5,卵形或三角状卵形,长约0.5毫米;外面被微绒毛,花萼下有小苞片4,卵形,密被绒毛;花瓣5,近长椭圆形,长2毫米,宽1毫米,外面被疏柔毛;雄蕊10,排列成2轮,长2-3毫米,生于花盘周围,花丝钻形,无毛,花药淡黄色,椭圆形;花盘肉质,微现裂痕。雌花未详。核果幼时绿色,干燥后紫褐色,长卵圆形或近椭圆形,长2厘米,宽1厘米,直径5毫米,被微绒毛,无果梗,通常4-5枚成头状果序,果实下边有矩圆形小苞片4枚;总果梗长2厘米,被黄绿色微绒毛,生于叶腋或叶已脱落的叶痕内侧;种子稍扁,外壳上有7条纵沟纹。花期3月下旬,果期9月。 【引自:中国植物志】

2分布信息

采集编号 国家 区县 详情
YAFYWZ014 中国 云南省 西双版纳傣族自治州 景洪市 详细
YAFYWZ01401 中国 云南省 西双版纳傣族自治州 景洪市 详细
YAFYWZ01503 中国 云南省 西双版纳傣族自治州 景洪市 详细
YAFYWZ013 中国 云南省 西双版纳傣族自治州 景洪市 详细
YAFYWZ01301 中国 云南省 西双版纳傣族自治州 景洪市 详细
YAFYWZ01501 中国 云南省 西双版纳傣族自治州 景洪市 详细
YAFYWZ01504 中国 云南省 西双版纳傣族自治州 景洪市 详细
YAFYWZ01502 中国 云南省 西双版纳傣族自治州 景洪市 详细
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