Leaves HortBotany.

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Presentation transcript:

Leaves 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.

(angiosperm leaf types) 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.

(Angiosperm leaf types) Leaf morphology (Angiosperm leaf types)

(Angiosperm leaf types) Leaf morphology (Angiosperm leaf types)

(Angiosperm leaf types) Leaf morphology (Angiosperm leaf types)

(Angiosperm leaf types) Leaf morphology (Angiosperm leaf types)

Leaf morphology Leaf types Gymnosperm Needle-like Prickly to touch Juniperus spp.(adult foliage)

(Gymnosperm leaf types) 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)

(Gymnosperm leaf types) 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

(Gymnosperm leaf types) 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 morphology (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