齿叶四季桂
树枝和树叶
Branches and Leaves
•小乔木或丛生灌木状，树形较低矮，高1.5～4.5m, 在福建(武夷山)一带可高达6～8m, 树冠圆球形。东南和华南各地长势旺盛，北部长势较弱至中等，分枝短而密。叶二型：春 叶宽椭圆形或椭圆形，长7～9cm, 宽3.3～3.6cm, 长宽比约2.3;基部楔形或狭楔形； 先端突尖；全缘或近全缘。秋叶卵状椭圆形或卵状披针形，长8～10cm, 宽3 .3～4cm; 基部宽楔形至近圆形；先端渐尖；叶缘至少中部或上部1/3以上有细尖锯齿。侧脉7～9对， 网脉较明显，主脉和侧脉间的交角很大。叶柄长4～8(10)mm。 幼叶黄绿色或略带淡紫 红色，成年叶色较淡。
•fragrans‘Sijigui'(Everblooming)Small tree or frutescent to 1.5-4.5(6-8)m; crown spheroidal; branchlets short and dense, slight vigorousto vigorous. Leaves 2-shaped, those in spring wide elliptic or elliptic,7-9 cm×3.3-3.6 cm, base cuneateor narrow cuneate,apex cuspidate,margin entire or nearly so; those in autumn ovate-elliptic or ovate-lanceolate,8- 10 cm×3.3-4 cm, base wide cuneate to rounded, apex acuminate, margin minute serrate frommiddle or from above 1/3; secondary veins 7-9 pairs, the angle between the primary and secondary veinsusually obtuse; petiole 4-8(10) mm long; young leaves yellow green or purple red, mature leaves is muchslight
花
Flower
•顶花枝较短，通常长约6～8 cm, 仅顶部1～3节各具花芽1对，稀2对； 一般每花芽有花7～10朵，圆锥花序中的花朵数可多达12～22朵， 密集。花冠斜展，直径5～7mm, 乳 白 色 至淡黄白色 (RHS-CC<2B),深秋和早春花期花色可深至乳黄色 (RHS-CC6A～6B);裂片倒卵形或椭圆形，长3～3.5 mm, 宽 2mm; 雄蕊2,黄色；花梗长7～10(13)mm。 秋冬季节新梢之花直径可达10～17mm, 但花数较少；裂片肥厚，内扣。雌蕊完全败育，呈叶状或有时呈花瓣状。花期以秋季和春季为主，花量较少，常零星开放。秋季盛花期：9月下旬至10月中旬
•Flower twigs short, 6-8 cm long; only 1 to 3 nodes near apex with 1,rarely 2 pairs of flower buds,eachproducing 7- 10 flowers, sometimes to 12-22 flowers in panicle, dense; Pedicels 7- 10(13)mm long. Corollainclined, cream-white to light yellow white (RHS-CC<2B),5-7 mm,cream yellow (RHS-CC 6A-6B)inearly spring or late autumn; corolla lobes obovate or elliptic,3- 3.5 mm×2 mm; stamens 2, yellow; pistilsabortive; the flowers on young branchlets general are much bigger,10- 17 mm diameter, but the quantity offlower is a small; corolla lobes more thick, and incurved; pistils leaf-like or petal-like.
分布
Distribution
•黄河以南各地常见栽培。江苏南京、苏州；河南信阳、南阳、舞阳、新乡；上海；浙江杭州、金华、绍兴；江西赣州、南昌；福建武夷山、蒲城、龙岩；广西桂林；广东深圳、广州。散见于各地公园和苗圃中。
•Main blooming inautumn, last to next spring.Distribution: South of the Huanghe River, wide distributed in south of China.
备注
Remark
•识别要点： 四季桂‘Sijigui’是栽培最普遍的品种之一，该品种的主脉和侧脉之间的夹角很大，近于垂直状态。四季桂开花的多少、香气的浓淡与其生长环境和分布区域有关， 一般在我国西北部地区的四季桂花量均不多，香气较淡，而在东南部秋季开花时花极为繁密，香气也较浓，其他季节花量则较少，香气较淡。
•Identification point: Four laurel 'Sijigui' is one of the most common cultivated varieties, the Angle between the main and lateral veins of the variety is very large, close to the vertical state. The number of seasonal osmanthus flowering, the shade of the aroma is related to its growth environment and distribution area, generally in the northwest of China, the amount of seasonal osmanthus is not much, the aroma is light, and in the southeast autumn flowering flowers are very dense, the aroma is stronger, other seasons flower quantity is less, the aroma is light
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