柔弱润楠
柔弱润楠 |
中文名:柔弱润楠 拉丁学名:Machilus gracillima Chun 界:植物界 科:樟科 属:润楠属 种:柔弱润楠 |
柔弱润楠(róu ruò rùn nán,学名 Machilus gracillima Chun,异名:Persea gracillima ),小乔木,高4米,胸径达10厘米,性状柔弱,多叶,全体无毛。小枝纤细。果序萎缩,单独腋生;果近球形,未十分成熟时长13毫米,宿存花被裂片开展,倒披针形,近相等,长5毫米,宽1.2毫米,纸质,浅黄色;果梗短于叶柄,长5毫米,上部略肿胀。 [1]
目录
柔弱润楠形态特征
柔弱润楠 小乔木,高4米,胸径达10厘米,性状柔弱,多叶,全体无毛。小枝纤细。
叶在枝条下部的为互生而大型,中部的近对生,而上部的稠密,但两者全是小型,长短不一,叶片均长椭圆形,略带菱形,老叶长10-11厘米,宽2.5-3.5厘米;
先端渐尖,尖头常略弯曲,基部楔形,厚纸质,上面灰绿色,下面灰褐色,带粉白,中脉纤细,上面凹下,成狭窄浅槽,下面凸起,侧脉每边10-12条,侧脉和蜂窝形的网脉在叶的两面同样微弱,但在放大镜下同样分明,叶柄长10-12毫米。
花未见。果序萎缩,单独腋生;果近球形,未十分成熟时长13毫米,宿存花被裂片开展,倒披针形,近相等,长5毫米,宽1.2毫米,纸质,浅黄色;
果梗短于叶柄,长5毫米,上部略肿胀。[2]
分类文献
Machilus gracillima Chun in Act. Phytotax. Sin. 2: 171, t. 35. 1953.——Persea gracillima (Chun) Kosterm. in Reinwardtia 6: 192. 1962.
Persea gracillima (Chun) Kostermans.
Small trees, to 4 m tall; trunk to 10 cm d.b.h., glabrous throughout. Branchlets slender. Petiole 10-12 mm; leaf blade abaxially grayish brown and glaucous, adaxially grayish green, oblong, somewhat rhombic, 10-11 × 2.5-3.5 cm, thinly leathery, midrib slender, abaxially elevated, adaxially concave, lateral veins 10-12 pairs, together with reticulate veinlets slender on both surfaces but distinctly visible by lens, base cuneate, apex caudate-acuminate.
Flowers unknown. Infructescences very short, solitary in leaf axil. Fruit subglobose, ca. 1.3 cm in diam. (immature); persistent perianth lobes yellowish, patent, oblanceolate, subequal, ca. 5 × 1.2 mm, papery; fruiting pedicel shorter than petiole, ca. 5 mm, upper parts slightly thickened.
● Dense broad-leaved forests. N Guangxi.
This is a very rare species apparently known only from the type gathering.This is a very rare species apparently known only from the type gathering.
柔弱润楠生长环境
主要生长于阔叶混交密林中。 [3]
柔弱润楠分布范围
参考来源
- ↑ 柔弱润楠, 植物智, 2020-01-18
- ↑ 柔弱润楠长这样_好看视频 - 秒懂百科 视频时长 00:50 2019年8月30日 - 原来柔弱润楠长这样,本视频由秒懂百科原创提供,0次播放,有0人点赞,0人对此视频发表评论,好看视频是由百度团队打...
- ↑ 柔弱润楠 Machilus gracillima 13.柔弱润楠 Machilus gracillima Chun in Act. Phytotax. Sin. 2: 171, t. 35. 1953.——Persea gracillima (Chun) Kosterm. in Reinwardtia 6: 192...
- ↑ 《中国植物志》 第31卷 (1982) >> 026页 PDF >> 柔弱润楠 Machilus gracillima