资料库编号: Database ID: |
MY-10717 |
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中文名称: Chinese Name: |
华南苏铁 |
中文別名: | 刺叶苏铁 |
学名: Scientific Name: | Cycas rumphii [找同属植物] |
学名2: Syn. Scientific Name: | Cycas celebica Miq. |
英文名称: English Name: | Queen sago palm |
英文別名: | Queen sago |
植物科名: Family Name: | 苏铁科 Cycadaceae [找同科植物] |
生长习性: Living Behavior | 苏铁类 |
图片花色: | 橙_orange |
生长环境: Living Environment: | 栽培 |
原产地: | 婆罗洲、印尼、巴布亚新几内亚、澳洲 |
输入时间: Input Time: | 202004 |
Remarks: 百度百科: 树干圆柱形,高4-8米,稀达15米,上部有残存的叶柄,分枝或不分枝。羽状叶长1-2米,叶轴横切面近圆形或三角状圆形,叶柄长10-15厘米或更长,常具三钝棱,两侧有短刺,刺间距离1.5-2厘米,稀无刺;羽状裂片50-80对排成两列,长披针状条形或条形,稍弯曲或直, 革质,绿色,有光泽,两面中脉微凹,先端渐长尖,边缘平或微反曲,稀微波状,基部不对称,上侧急窄,下侧较宽或微窄,下延生长,叶轴中部的羽状裂片长15-30厘米,宽10-15毫米。 雄球花有短梗,椭圆状矩圆形,长12-25厘米,径5-7厘米,小孢子叶楔形,长2.5-5厘米,顶部截状,密被红色或褐红色绒毛,微反曲或不反曲,有弯曲的钝尖头,花药2-5个聚生;大孢子叶长20-35厘米,初被绒毛,后渐脱落,下部柄长,常具四棱,在其上部两侧各有1-3 (多为2-3)枚胚珠,稀4-8枚胚珠,胚珠近光滑,幼嫩时半陷人穴中,上部的顶片窄匙形或披针状,先端有钻状尖头,两侧边缘具数枚细短的裂齿。种子扁圆形或卵圆形,先端有时微凹,中央微有凸尖,径3-4.5厘米,中种皮木质,有两条棱脊。花期5-6月,种子10月成熟。 Info from: http://www.llifle.com/Encyclopedia/PALMS_AND_CYCADS/Family/Cycadaceae/31824/Cycas_rumphii Cycas rumphii resembles a small palm tree, with a cylindrical, woody trunk 5-10 m in height. The plants are dioecious, that is to say that male plants produce pollen by leaf homologues called microsporophylls that are arranged in a long fusiform cone, thick and yellow to pale brown, arising annually, and female plants produce ovules in a row of leaf homologues known as megasporophylls. Fertilized ovules produce flatten-ovoid seeds that are red or orange at maturity, 3-4.5 cm in diameter with a spongy endocarp present, but only one sex is to be found on any one plant so both male and female plants must be grown if seed is required. The bright green, glossy leaves (fronds) are about the same size as Cycas circinalis with 150-200 leaflets. New leaves are produced in a dense terminal whorl in periodic "flushes" called a "break". Distinguishing features: Cycas rumphii distinguishes within the group of species with spongy encocarp by the broad, falcate, hard, glossy leaflets with relatively broad bases, the relatively long and usually wholly spinescent petiole, and the narrowly triangular megasporophyll lamina with a slender apical spine (10-23 mm long) and vestigial lateral spines. | |
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