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habitat adaptations
- climate, soils, elevation, shade tolerance
- wtland to upland habitats
- asspect
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angiospers
- ovaires and fruit
- 250,000 species largest and most divers
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gymnospermas
and vascular plant that reproduces by and exposed seed, cone are not same as fruit
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LA habitats
- oak hickry-
- oak pine
- tall grass parie
- coastal plane
- coastal marsh
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OBL
- obligate wetland
- 99% in wetland under natural condition
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FUCW
- fuculative wetland plants
- 67-99%
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natural range
land plant is restricted in nature to a particular geographical area wherne conditions of climate and soil are suitable and available for it growth and repro. and where it has been documented to occur
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FAC
- faculative wetland plant
- 33-66% occuance in wetland
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FACU
- facculative up land plant
- 33-66% non wetlands
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UPL
- faculative upland
- 99% not in wetlands
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Herb
no above ground persistent wood tissue by may have underground perennating structres,
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Subshrub
lower stems woody but upper stems herbaceous
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shrub
woody low stature perennial plant with one to many slender trucks arising from near its base
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Tree
large woody perennial plant with one the several relatively massive trunks and an elvated crown
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succulent
possessing think ussally soft watery lvs and stems
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vine
a woody or herbaceaus plant with a long slender more or less flexible stem whitch cannot support iteslf
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liana
a woody climbing vine
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4 primary habits are
- excuuent
- deliqusent
- palmlike
- yccan-type
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excuuent
- a central dominate truck and symmetrical croncal or spirelike crown of many conifers and some hardwoods
- Examples:
- Pinus Palustris
- P. Taeda
- Juniperus virginiana
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deliquescent
- with reeatedly forked stems giving rise to a spreading form such as in oak male and most hard woods
- example:
- Quercus virginia
- Q. Nigra
- Ulmus americana
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ycca type
- with a basal rosette of long stiff leavs and central tall flowering stalk or irregularly branched thick trunk as in the tree like yccas
- example:
- Yucca sp.
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palm like
- an ungranched trunk and leaves on in the top rosette in plams and mosy cycads
- Sabal Minor = example
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Leaves
- lateral appendages on stem
- usual serve as the primar photosynthetic surface on the plant
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Evergreen
bearig green foliage all year round
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Deciduous
the loss of leaves during unfav. conditions
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Leaf blade
expanded portion of a leaf
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stipules
pair of appendages located at the base
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simple leaf
leaf with a single blade it is not divided into leaflets there is always a flange of blade tissue connecting adjacent lobes
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Compound leaf
- a leaf with more than one blade per petiole
- it is made up of tow or more leaflets and these leaflets are wholly speerate
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petiolule
the stalk of a leaflet
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leaflet
on the segments of compound leaf
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rachis
the axis of a pinnately compound leaf
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pinnately compound
- a leaf in whcih there are more than 3 leaflet arranged in 2 row along common axis
- the leaflets are attahed like the vanes of a feather
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Pinna
the primary divison of a pinnateley compound leaf
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Bipinnately compound
leaf divided twice
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palmately compound
where the leafes arise form a common point of attachment NO RACHIS
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triboliolate
a compound leaf with 3 leaflets
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Trifoliate
3 seperate leaves arising form the same node
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Petolate
attching by a petiole
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subsessile
very short petiole
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sheathing
leaf base wraps around the stem
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Trees that have subopp. leaf arrangement
buckthorn, sweet leaf
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basal
leavs attached to rhizome or other underground stem
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cauline
leaves attached to above ground stem
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alternete
one leaf per node
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opposite
2 leaves per node
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Pinnate leaf venation
consistinf of central midvane with many secondary veins emerging on both sides to form a feather liek patteren
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palmate leaf venation
all primar arrise at the same point at the base of the leaf
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parallel
veins lie more or less strait to leaf margins
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pinnipalmate leaf venation
it some with intermdiat b/w pinnate and palmate with which the lower pair of veins arasiing at the mid rib is light larger than the other secondaires with large tertary veins going lower margins.
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dichotomous
has repeated forking or y branching found in gnko
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leaf shapes and examples
- Acicular = Pinus spp
- lanceolate= Salix nigra
- Spatulate= Quercus nigra
- Reniform= Cercis canadensis
- Deltae= Populus deltoides
- Rhombic Q. Laurifolia
- Linear=Q. phellos
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Linear
long and narrow with sided parell
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oblong
nearly rectangular with the side parellel
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lanceeolate
spear shaped widening about base then long spering to apex
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Ovate
egg shaped broad neares base
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obvate
ovate but with narrower end toward point of attchment
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Elliptic
ellipse shaped wides near middle and tapering at both ends
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acicular
needle likevery long and slender variously shaped in cross section
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Detate
delta shaped, trangular
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rhombic
dimond shaped more less symmetrical with the widest point at the center and the sides more or less straight to the apex and base
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spatulate n
narrower than obvate shaped like a pstula with a broad apex and tapering to the base
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acute
shar ending in a point with a straight side less than 90 degrees
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acumnate
sharp ending in long tapering with concave sides
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obtuse
blunt rounded greater than 90 degrees
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mucronate
a small abrute point
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acute
sharp less than 90 degrees
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cordate
sharp equal rounded lobes at the base
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peltate
unbrella the peiole is attached the blade inside to the margin
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entire margin
a margin without any toothing or division
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crenate margins
scallaped or round toothed
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serrate
a sawtooth margin with sharp teeth pointing toward
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dentale
sharp teeth projectin at right angles form the margin
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lobing
when the blade margins are indent one qrt to 1/2 disicht 2 midrib or base
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conifer leaves
in many conifers the linear sublate and scale leaves are attached and extend down the stem for some distance below the point of divergence= decuent leaf base
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pnnately lobed
loved towards the mid but not reachint it
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Palmately lobed
loves all arrising form 1 point a tthe base of the leaf
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cleft
indentino or incsions cut 1/2 - 1/4 a to mid rib or mid vein
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lobed
large 1/8 - 1/4 distance to mid vein
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Incises
margins shrply and deeply cut usually jaggedly
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