观花植物检索表.docx
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观花植物检索表.docx
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观花植物检索表
中国农业大学东校区春季开花植物花器官
分类检索表
1草本········································································2
1木本········································································4
2雄蕊背部具细管状距···················································紫花地丁
2花不具距····································································3
3头状花序·······························································蒲公英
3总状花序·······························································二月兰
4花瓣合生····································································5
4花瓣离生····································································7
5花瓣颜色为紫色或白色·····················································丁香
5花瓣颜色为黄色······························································6
6花冠通常6裂···························································迎春花
6花冠通常4裂·····························································连翘
7假蝶形花冠··································································8
7非假蝶形花冠································································9
8单叶互生,心形,全缘(叶缘有增厚的透明边),光滑无毛·····················紫荆
8成下垂的总状花序,叶广卵圆形,先端急尖,基部截形或浅心形,背面有短绒毛,脉上毛较多·································································垂丝紫荆
9花叶同放···································································桃
9花叶不同放·································································10
10先花后叶··································································11
10先叶后花··································································17
11雄蕊和雌蕊均多数,分离,螺旋状排列于柱状花托上····························12
11无柱状花托································································14
12花大,花萼、花瓣相似,共9片,纯白色····································玉兰
12花大,花瓣6片,萼片3·····················································13
13花瓣外面紫色,里面近白色··············································紫玉兰
13花瓣外面多淡紫色,基部色较深,里面白色······························二乔玉兰
14花单生····································································15
14花簇生····································································16
15萼筒广钟状,长3—5mm,微被毛或无毛···································榆叶梅
15萼筒圆筒状,外面基部被短柔毛···············································杏
16伞房花序································································樱桃
16短总状花序······························································樱花
17花单生,粉红色··························································木瓜
17花簇生····································································18
18萼筒外面无毛或有白色绒毛,萼片三角卵形,比萼筒短或近等长,先端急尖,全缘,外面无毛或偶有稀疏绒毛,内面密被白色绒毛·································海棠花
18萼筒钟状,外面无毛;萼片直立,半圆形稀卵形·························贴梗海棠
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