K: Charophyta/Div:Coleochaetales
Alternation of Generations
Moss sporophytes and gametophytes gametophytes sporophytes
Moss antheridia Sperm
Moss antheridia w/sperm
Moss archegonia ovum
Moss archegonia 2 ova
Moss archegonia 3
Moss sporophytes
Moss capsule (sporophyte) Operculum Spores
Liverwort
Liverwort antheridiophore
Liverwort antheridiophore 2
Liverwort antheridia Antheridiophore sperm
Liverwort antheridia w/sperm
Liverwort archegoniophore
Liverwort archegonia w/ova Archegoniophore Archegonium ovum
Liverwort sporophyte Archegoniophore
Liverwort sporophyte 2 spores
Liverwort gemmae cups(cupules)
Gemmae cups (cupules) Gemma cup (cupule) gemma
Hornwort sporophytes gametophyte
Hornwort 2 “Horn –like” Sporophyte gametophyte
Rhyniophyta
Psilophyta
Psilophyta gametophyte
Lycophyta strobila leaves
Lycophyta strobilus megaspores microspores sporophylls
Lycophyta strobilus 2 megsporangium Microspores Megaspores
Lycophyta gametophyte
Sphenophyta strobilus
Sphenophyta strobilus spores
Sphenophyta gametophyte
Pterophyta sporophyte
Pterophyta sporophyte2
Fern frond w/ sori
Sori on fern leaflets
Sorus
Fern sporangia Sporangium Annulus Spores
Fern sporangia and spores annulus
Fern gametophyte
Gametophyte w/antheridia Gametophyte (prothallus) Antheridiasperm
Antheridia w/sperm Antheridium sperm
Gametophyte w/archegonia Archegonia
Gametophyte w/archegonia 2 Archegonia
Archegonia on surface of prothallus
Fern sporangium and prothallus Sporophyte Gametophyte (prothallus)
Pinus staminate cones
Pinus Ovulate cone (mature)
Staminate cone with pollen Pollen grains (microspores or microgametophytes)
Pinus microgametophytes (mature pollen grains) Generative nucleus Tube nucleus “Wing”
Pinus ovulate cone megasporophyll ovule
Pinus megasporophyll Megasporophyll Megaspore mother cell
Ovule w/megaspore mother cell Megaspore mother cell Ovule
Pollen tubes
Pollen tube 2 Ovule (megagametophyte)
Conifer Life Cycle Animation re/content/chp30/30020.html
Pinus seed Haploid endosperm (gametophyte tissue)
Cycadophyta
Cycadophyta 2
Cycadophyta ovulate cones
Ginkgophyta
Ginkgophyta leaves
Ginkgo ovules/seeds (naked) ovules (naked) seeds
Ginkgo staminate cones
Gnetophyta
Gnetophyta/Ephedra
Flower structure (carpel) (corolla) (calyx)
Inflorescences
Anther1
Anther 2
Dehiscing anther Pollen grains
Mature pollen grains Microspore
Lilium ovary
megagametophyte ovule
Lilium ovule ovule Megagametophyte (embryo sac) funiculus
Double Fertilization Animation nnan/systbot/doublefertanimation.h tml
Dicot Seed Development 10v/media/ch19/dicot_seed_devt.ht ml
Dicot Seed
Radicle Plumule Cotyledon Endosperm (3n) Testa
Monocot seed Plumule Radicle Cotyledon Endosperm Embryo Testa
Dicot Seed E A= plumule B= hypocotyl C = cotyledon D = testa E = radicle
Dicot seed germination Radicle hypocotyl epicotyl
Seed Germination 10v/media/ch19/plant_development.html
Monocot seed germination
Dicot root
Dicot root 2 Parenchyma
Dicot root/Vascular Cylinder 3 Endodermis and casparian strip Pericycle Phloem Xylem Vascular cambium
Monocot root Pith
Monocot root 2 Parenchyma Pith (Parenchyma)
Monocot root 3 Endodermis
Monocot Root 4
Dicot stem
Dicot stem 2 sclerenchyma Vascular cambium phloem
Monocot stem
Monocot stem 2 Sclerenchyma Phloem Sieve element Companion cell Xylem vessel Air space Inside Outside
Woody stem Summerwood Springwood
Woody stem 2 Vascular cambium Phloem Phloem ray Xylem Cork
Woody stem 3 Cork (collenchyma tissue or periderm) Vascular cambium
Plant Structure
Leaf bud Ground meristem
Leaf bud 2 Provascular tissue Ground meristem Apical meristem