plsylab9.doc - Plant Systematics Laboratory Manual 9.1 Plant Taxonomy Laboratory#9 PLANT MORPHOLOGY A VEGETATIVE MORPHOLOGY PLANT HABIT\/HABITAT ROOTS

plsylab9.doc - Plant Systematics Laboratory Manual 9.1...

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Plant Systematics Laboratory Manual 9. 1 Plant Taxonomy Laboratory #9 PLANT MORPHOLOGY A. VEGETATIVE MORPHOLOGY: PLANT HABIT/HABITAT, ROOTS, STEMS, AND LEAVES Objective: To be able to recognize and define the plant characters listed below. Working in pairs, determine the state (covered with a card) for each character on display. Then, check correct answer and discuss. Test yourselves at the end. [You need not memorize specific examples on display.] PLANT HABIT: Observe the examples on display and answer the following. 1) What does plant habit refer to? 2) List one example and define each of the following character states. Draw or photograph as needed. Example Definition a) herb b) shrub [cf. subshrub] c) vine [cf. liana] d) tree PLANT HABITAT: Observe the examples on display and answer the following. 1) What does plant habitat refer to? 2) List one example and define each of the following character states. Draw or photograph as needed. Example Definition a) terrestrial b) aquatic-floating c) aquatic-emergent d) epiphytic ROOTS: Observe the examples on display and answer the following. 1) What is the function of a root? 2) Observe and list the parts of a root. 3) List one example and define each of the following character states. Draw or photograph as needed. Example Definition a) adventitious root b) fibrous root system c) haustorial roots d) prop root e) taproot STEMS/SHOOTS: Observe the examples on display and answer the following.
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Plant Systematics Laboratory Manual 9. 2 1) What is the function of a stem? 2) Define and list the parts ofa shoot. 3) List one example and define each of the following character states. Draw or photograph as needed. Example Definition a) areole b) bulb c) caudex d) caudiciform stem e) cladode f) corm g) pachycaul h) pseudobulb i) rhizome j) short shoot/fascicle k) stolon / runner l) tuber m) thorn STEM HABIT: Observe the examples on display and answer the following. 1) What does stem habit refer to? 2) List one example and define each of the following character states. Draw or photograph as needed. Example Definition a) acaulescent b) caulescent c) decumbent d) prostrate TWIG MORPHOLOGY: Observe the examples on display and answer the following. 1) Draw a representative twig and label the following: leaf scar , leaf vascular bundle scars , stipule scars (if present), terminal bud , lateral (axillary) bud , node , internode , lenticels . 2) For a single bud, carefully make a longitudinal section with a razor blade. Observe (under dissecting scope) the bud scales and young leaf primordia . Draw and label .
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Plant Systematics Laboratory Manual 9. 3 3) List one example and define each of the following character states. Draw or photograph as needed. Example Definition a) collateral buds b) infrapetiolar bud c) naked bud d) pseudoterminal bud e) superposed buds STEM BRANCHING: Observe the examples on display and answer the following.
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  • Spring '09
  • jhon
  • Plant morphology, Plant Systematics Laboratory, Systematics Laboratory Manual

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