Upload
shauna-norman
View
217
Download
0
Embed Size (px)
Citation preview
LeavesLeaves
HortBotany
Leaf morphology• Arrangement (look for bud)
•Alternate•1 leaf for each node• Betula spp., Cercis spp., Quercus spp., Gleditsia spp. Ulmus spp.
Leaf morphology(arrangement)
Leaf morphology• Arrangement (look for bud)
•Opposite•2 leaves for each node•Acer spp., Cornus spp., Fraxinus spp., Viburnum spp.
Leaf morphology(arrangement)
Leaf morphology• Arrangement (look for bud)
•Subopposite•2 leaves for each node•Lagerstroemia indica
Leaf morphology(arrangement)
Leaf morphology• Arrangement (look for bud)
•Whorled•3 or more leaves for each node•Catalpa spp., Hydrangea spp., Nerium oleander
Leaf morphology(arrangement)
Leaf morphology• Leaf types
•Angiosperm•Simple•Bud in leaf axil of single leaf•Acer spp., Betula spp., Cornus spp., Quercus spp., Ulmus spp.
Leaf morphology(angiosperm leaf types)
Leaf morphology• Leaf types
•Angiosperm•Compound•Bud in leaf axil of more than one leaflet
•Aesculus spp., Fraxinus spp., Gleditsia spp., Pistacia spp.
Leaf morphology(Angiosperm leaf types)
Leaf morphology(Angiosperm leaf types)
Leaf morphology(Angiosperm leaf types)
Leaf morphology(Angiosperm leaf types)
Leaf morphology• Leaf types
•Gymnosperm•Needle-like•Prickly to touch•Juniperus spp.(adult foliage)
Leaf morphology(Gymnosperm leaf types)
Leaf morphology• Leaf types
•Gymnosperm•Scale-like•Overlaps like shingles or fish scales
•Soft to touch•Cupressus spp., Thuja spp., Juniperus spp. (juvenile foliage)
Leaf morphology(Gymnosperm leaf types)
Leaf morphology• Leaf types
•Gymnosperm•Needle-like•Pinus spp.
•Combined in fascicles of 1, 2, 3, 4, or 5 needles
Leaf morphology(Gymnosperm leaf types)
Leaf morphology• Leaf types
•Gymnosperm•Abies spp., Cedrus spp., Picea spp., Taxus spp.•Singly or in clusters on stem
Leaf morphologyLeaf morphology(Gymnosperm leaf types)(Gymnosperm leaf types)
Spruce Foliage
Leaf morphology• Leaf shapes
•Angiosperm•Ovate
Leaf morphology• Leaf shapes
•Angiosperm•Obovate
Leaf morphology• Leaf shapes
•Angiosperm•Cordate
Leaf morphology• Leaf shapes
•Angiosperm•Lanceolate
Leaf morphology• Leaf shapes
•Angiosperm•Linear
Leaf morphology• Leaf shapes
•Angiosperm•Deltoid
Leaf morphology• Leaf margins
•Angiosperm•Entire
Leaf morphology• Leaf margins
•Angiosperm•Serrate
Leaf morphology• Leaf margins
•Angiosperm•Sinuate
Leaf morphology• Leaf margins
•Angiosperm•Lobed
Leaf morphology• Leaf margins
•Angiosperm•Crenate
The End