powerpoint presentation - introduction to phenology, the science … · 2014-01-14 · s. mazer and...
TRANSCRIPT
![Page 1: PowerPoint Presentation - Introduction to Phenology, the Science … · 2014-01-14 · S. Mazer and L. Matthews, with comments from A. Evenden, K. Gerst, E. Surina, K. Callahan, F](https://reader034.vdocuments.net/reader034/viewer/2022050611/5fb21bf25bb8ca10df0fb921/html5/thumbnails/1.jpg)
Basic Botany
What are the most important events in a plant’s life cycle? • Seed germination• Production of new leaves• Opening of first flowers• Pollination• Fruiting• Seed dispersal
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Reproductive buds become flowers
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Vegetative buds become leaves
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S. Mazer and L. Matthews, with comments from A. Evenden, K. Gerst, E. Surina, K. Callahan, F. Villalba, M. Holmes, S.
Sutton 6/21/12
12
Buds may be found in several locations relative to leaves and stems. Generally, leaves ALWAYS have a bud in their
axil, even though it may be very small
Bud at node
Lateral bud
Terminal bud
BasicBotanyReview
Node
Leaf or
branch
The position of a bud, in general, doesn’t tell you whether it is going to produce leaves or flowers; you
have to keep looking at it over time to see how it develops.
As you become familiar with the “architecture” (the positions of buds, leaves, and flowers) of a given
species, you will soon be able to predict whether a bud will open up to produce leaves or flowers, based
on its appearance, size, color, and position.
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Terminology: Petiole
The stalk that joins a leaf to a stem
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Terminology: Infloresence
A characteristic arrangementof flowers on a stalk
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How do you tell a leaf from a leaflet? By the presence of a bud near the base of the petiole.
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Leaves of some CPP Plants
CaliforniaBay
CaliforniaBuckeye
Coyotebrush
BlueElderberry
Which are leaves and which are leaflets?Where is the petiole?
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California Bay
What do you see?
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California Bay
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Some phases of the Blue Elderberry
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Blue Elderberry
What do you see?
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Blue Elderberry
Can you see a breaking leafbud?
Do you see anypetioles?