PPT-Introduction to Seed Plants: Gymnosperms

Chapter 22 Outline Introduction Phylum Pinophyta The Conifers Other Gymnosperms Phylum Ginkgophyta Ginkgo Phylum Cycadophyta The Cycads Phylum Gnetophyta The . Spring 2013. Outline. Review of land plant phylogeny. Characters of seed plants. Gymnosperm phylogeny & diversity. Cycads. Gingko. Conifers. Gnetophytes. Review of land plant phylogeny. Green plants (viridophytes). Spring . 2014. Outline. Review of land plant phylogeny. Characters of seed plants. Gymnosperm phylogeny & diversity. Cycads. Gingko. Conifers. Gnetophytes. Review of land plant phylogeny. Green plants (viridophytes). Plantae. Phylum: . Pteropsida. Class:. Filicinae. , . Gymnospermae. , . Angiospermae. Pteropsida. . A large group of vascular plants characterized by having . parenchymatous. leaf gaps in the stele and by having leaves which are thought to have originated in the distant past as branched stem systems. . Plants Vascular Plants Seed Gymnosperms Angiosperms Seedless (flowerless) Ferns Horsetails Club Mosses Nonvascular Plants Seedless (flowerless) Moss Liverworts and Hornworts Essential Question: Seed plants are divided into two groups:. 1. gymnosperms – which bear their seeds directly on the surface of cones.. Gymnosperms include conifers such as pine and spruce, . palmlike. plants called cycads, ginkgoes, and the very weird . Objectives. 1. Name the . protist. group from which plants are hypothesized to have descended, and describe supporting evidence..  . 2. Discuss some environmental challenges of living on land, and describe how several adaptations meet these challenges.. Why should we care about plants, at all?. Carbon dioxide levels. Indicators for ground level pollution, long before animals. Japan/ radioactive food….. But… . Kudzu- invasive. Did you know……. G1.1. :. Understand how to classify and identify plants by order, family, genus, and. . species. Upon completion, students will:. Know the general hierarchy of classification– focusing on class, order, family, genus, and species. Spring . 2014. Outline. Review of land plant phylogeny. Characters of seed plants. Gymnosperm phylogeny & diversity. Cycads. Gingko. Conifers. Gnetophytes. Review of land plant phylogeny. Green plants (viridophytes). Seed Plants. Recall that seedless plants were either nonvascular or vascular… either way they did . NOT. produce seeds. Seeds can be found . everywhere. …acorns, dandelion seeds, kernels of corn, even peanuts!. Cycas. Asso. . Prof. . Seema. A. . Gaikwad. Dept. of Botany. . Vidnyan. . Mahavidyalaya. , . Sangola. .. Introduction and Salient features of Gymnosperms . .. Archegoniate. . Course Code: BOTACOR04T . Unit 6: Gymnosperms : an overview. Dr. Madhushri Das. Assistant Professor. Department of Botany. Hiralal. . Mazumdar. Memorial College for Women, . Dakshineswar. B.Sc- II – Sem – III. Unit - I. Dr. M. Nafees Iqbal. Head, Department of Botany. M.S.P Arts, Science & K.P.T Commerce College Manora. Gymnosperm . (Gk. . Gymnos. = naked; . sperma. = seed). The Importance of Seeds. Q: What adaptations allow seed plants to reproduce without open water?. A: Adaptations include 1)a reproductive process that takes place in cones or flowers, 2)the transfer of sperm by pollination, and 3)the protection of embryos in seeds.