Presentation on theme: "Morphology of Range Plants"— Presentation transcript:
1Morphology of Range Plants Range Plants -- OBJ 1: PPTMorphology of Range PlantsThere are 14 slides in this presentation
2Range Plants -- OBJ 1: PPT ObjectivesDefine plant morphologyDescribe characteristics of the leaves, stems, roots, and flowers of range plantsDescribe the anatomy of grassesThere are 14 slides in this presentation
3Range Plants -- OBJ 1: PPT Plant MorphologyDescribes the physical form and external structures of a plantThere are 14 slides in this presentation
4StemsStems—the axes of plants—consist of nodes (where leaves and axillary buds are produced) separated by internodes.
5Range Plants -- OBJ 1: PPT StemsGrassesGrass-likesForbsShrubs(Sedges)(Rushes)Hollow or PithySolid Not JointedSolidWoody SolidThere are 14 slides in this presentation
6Sharp things Thorn - sharp-pointed stem/shoot (fr. axillary bud) Spine - sharp-pointed leaf or leaf part leaf spine (also leaflet spine) stipular spine petiolar spinePrickle - sharp pointed epidermal appendage
14The major parts of the leaf are shown in Figure 4. 3 The major parts of the leaf are shown in Figure In monocots the leaf is almost always broadly sheathing at the base. In taxa such as grasses and gingers there is an adaxial flap or ligule at the junction of the sheath and blade. A leaf that lacks a petiole is said to be sessile.
15Range Plants -- OBJ 1: PPT Leaf TypesSimpleCompoundCompound - PalmateCompound - PinnateThere are 14 slides in this presentation
26Leaf Margin - The leaf blade may have lobed or unlobed margins Leaf Margin - The leaf blade may have lobed or unlobed margins. These and other types of margins are: unlobed, lobed, entire, dentate, serrate, and crenate.
27Range Plants -- OBJ 1: PPT Leaf MarginsLobed-pinnateLobed-palmateSerratedEntireScallopedToothedThere are 14 slides in this presentation
29Leaf Apex and Base - Various terms relating to the shape of the leaf apex or leaf base include: acute, obtuse, acuminate, emarginate, truncate, and rounded (apex); acute, obtuse, rounded, decurrent, truncate, cordate, lobate, and sagittate (bases).
30Range Plants -- OBJ 1: PPT Leaf VeinationsParallelPinnatePalmateNettedThere are 14 slides in this presentation
47Imperfect Flower Male or female reproductive organs not, but not both. Example:A male flower has sepals, petals, and stamen, but no pistils.A female flower has sepals, petals, and pistils, but no stamen.
48Perfect FlowersContains both male and female reproductive structures.
49Incomplete Flowers Missing one of the four major parts of the flower. StamenPistilSepalPetal
50Complete FlowersContains male and female reproductive organs along with petals and sepals.
51Flowers Imperfect flowers are always incomplete but…….. Perfect flowers are not always complete and……..Complete flowers are always perfect.
52Importance of Flowers Important in florist & nursery businesses. Many plants are grown solely for their flowers.Plants have flowers to attract insects for pollination, but people grow them for beauty & economic value.