Licence de Biologie, LSV3. Botanique Syst matique et Phylog n se Les Gnetophytes Gnetum sp. (Gnetac es) Gnetum sp. Appareil reproducteur Ephedra sp.(Ephedrac es ...
... cycads, gnetophytes, and conifers Ginkgo Cycad Welwitschia Gnetum Ephedra Gymnosperms called gnetophytes; only 3 extant species Conifers: top row ...
Divisions of Seed Plants. Div: Gnetophyta. The 'Gnetophytes' 1. Are gymnosperms. ... 1. Resembles whisk ferns. 2. Most of the photosynthesis occurs in new branches. ...
... Welwitschia two huge leathery leaves Ephedra Mormon tree Gnetum leaves angiosperm-like vessels in the xylem considered an angiosperm characteristic have ...
Gymnosperms- Chapter 18 Naked versus Enclosed Seed Plants Gymnosperms Gymno- gr. naked. Sperma- gr. seed. Angiosperms Angeion- gr. vessel. Sperma- gr. seed. Extant ...
... and the vascular seed plants (5 phyla) Describe the basic plant life cycle and details of the ... Gymnosperms & Angiosperms Gymnosperm Life Cycle ...
The Plant Kingdom: Gymnosperms Chapter 24 LEARNING OBJECTIVE 1 Compare the features of seeds with those of spores Discuss the adaptive advantages of plants that ...
Plants B 3.3 Seed Plants Seed Plants The seed plants generally are classified into two major groups gymnosperms (JIHM nuh spurmz) and angiosperms (AN jee uh spurmz).
Plants Starr/Taggart s Biology: The Unity and Diversity of Life Key Concepts: The plant kingdom consists mostly of multicelled photoautotrophs Almost all plants ...
What is a Plant? with Plant Diversity Chapter 21 & 22 What is a plant? Multicellular eukaryote Produce their own food through photosynthesis Have thick cell walls ...
Plant Diversity Chapter 22 What is a Plant? Plants are the base for the food chain on land. Provide shade, shelter and oxygen Evolved more than 470 million years ago ...
Seed Plants BSC 2011L Seed Vascular Plants Among plants, these include the gymnosperms and angiosperms Reproductive differences in seedless vs. seed plants Sporangia ...
Seed Plants BSC 2011L Seed Vascular Plants Among plants, these include the gymnosperms and angiosperms Reproductive differences in seedless vs. seed plants Sporangia ...
Botany Unit Notes Part II Seed Producing Plants Plants require water to photosynthesize sugars and make food Many plants even need water for reproduction!
Each pollen grain consists of four cells and a pair of wings which are used for dispersal. ... The anthers have fours chambers that produce quartets of pollen.
Modification to process: a ovule is formed that becomes the seed. ... slender branch, ovule plants to Carboniferous plants that look like tree ferns. ...
Fertilization happens in the megasporangium. Ovule/Seed= a megasporangium with an 'integument' ... spp.) Conifers _ cones. Dioecious or monoecious plants. Non ...
Gymnosperms- Chapter 18 Naked versus Enclosed Seed Plants Gymnosperms Gymno- gr. naked. Sperma- gr. seed. Angiosperms Angeion- gr. vessel. Sperma- gr. seed. Extant ...
Part I What is a Plant? When you are asked, what color is life? , the color that comes to mind is usually green! It is no wonder that all of Earth s living ...
Unit 7 Plants Ch. 22 Plant Diversity What is a Plant? Plants are multicellular eukaryotes that have cell walls made of cellulose They develop from multicellular ...
Chloroplasts contain Chloro-phylls a and b. Nonvascular plants. No vascular tissue ... Most have true roots and leaves. Require water for sexual reproduction ...
Seed Plants 3 Characteristics of Seed Plants Most seed plants have leaves, stems, roots, and vascular tissue. They also produce seeds, which usually contain an embryo ...
IN ANGIOSPERMS, VESSEL ELEMENTS AND FIBERS EVOLVED FROM TRACHEIDS, A TYPE OF XYLEM. ... B. THE LIFE CYCLE OF AN ANGIOSPERM IS A HIGHLY REFINED VERSION OF THE. ALTER. ...
Maintain physiological integrity in the dry state. Mobilize repair mechanisms upon rehydration ... descendant comparison using. reconstructed ancestral states ...
First cycad fossils from late ... Dioecious, both types of strobili large. Several features may be ancestral ... First unequivocal fossils date from Lower ...
Plants Chapters 22-25 Flowering plants Cone-bearing plants Ferns and their relatives Flowers; Seeds Enclosed in Fruit Mosses and their relatives *FYI: GREEN ALGAE is ...
Gymnosperm vs Angiosperm Flowers, Fruits and Seeds too Seed Plants Seed plants are plants that produce seeds in order to reproduce. Two types of seed plants exist ...
Plants are multicellular eukaryotes that have cell walls made of cellulose. They develop from multicellular embryos and carry out ... Primrose, parsley, celery ...
The ginkgo, also called the maidenhair tree, has fan-shaped leaves and fleshy seeds. Unlike other gymnosperms, the leaves of a ginkgo fall from the tree in autumn. ...
These are germinated in artificial culture, in a sugar solution ... from Lab 2 Gnetophyta Gnetophyta D Ephedra D Ephedra pollen cone D Ephedra pollen ...
Taxonomy. Plant Science I. What is Taxonomy. Taxonomy is an organizational system ... What use they are grown for. Natural ... Variety or Cultivar. Naming ...
Division: Cycadophyta Cycads are vascular, seed plants that are palm-like and are called Sago Palms. The leaves are found in a cluster at the tops of the trunks.
Evolution of plants marked by four evolutionary events associated with four ... Liverworts (phylum Hepatophyta) have either flattened thallus or leafy appearance ...
a ring. Taproot. Section 22-5. Comparison of. Monocots and Dicots. Go to Section: Stem types ... Cherry, soybean pod. Aggregate fruit single flower with ...
Gymnosperms- Chapter 18 Naked versus Enclosed Seed Plants Gymnosperms Gymno- gr. naked. Sperma- gr. seed. Angiosperms Angeion- gr. vessel. Sperma- gr. seed. Extant ...
angiosperms enclosed seeds (in fruits) about 900 species ... pollen sacs of anther (microsporangium) nucellus of ovule (megasporangium) microsporocytes ...