Bryophyte,Cryptogams,Gymno

http://faculty.clintoncc.suny.edu/faculty/Michael.Gregory/files/Bio%20102/Bio%20102%20lectures/Seedless%20Plants/seedless%20plants.htm

KINGDOM PLANTAE


PLANT KINGDOM

• Eukaryotic• Multicellular• Photoautotrophs• Chloro a and b, carotenoids• Cell wall- cellulose• starch


Kingdom Plantae

•Nonvascular Plants: No water-conducting cells (xylem).1. Division Bryophyta (mosses and liverworts).

•Vascular plants: Xylem tissue, true roots, stems & leaves.

Pteridophytes: Spores but no seeds

2. Division Psilophyta (Psilotum or whisk fern.3. Division Lycophyta (club mosses).4. Division Sphenophyta (horsetails).5. Division Pterophyta (ferns).

Spermatophytes: Seed Plants

•Gymnosperms--Naked Seeds6. Division Cycadophyta (cycads).7. Division Ginkgophyta (maidenhair tree).8. Division Gnetophyta (mormon tea & Welwitschia).9. Division Coniferophyta (conifers).

•Angiosperms--Seeds Enclosed In A Fruit10. Division Anthophyta (flowering plants)


Non vascular plants


Division Bryophyta

• lack complex vascular tissue

• No true roots, stem and leaf

• Rhizoids• sperms are flagellated• Sporophyte is

dependent on the gametophyte


Sporangium or capsule Seta or stalk *foot


Seedless Vascular Plants


Seedless Vascular plants

• include ferns, whisk ferns, club mosses, and horsetails

• do not produce seeds• gametophyte and

sporophyte are independent

• true roots, stems, and leaves


• Microphyll• Macrophyll• Sporophyll• Sporangia • Homosporous• Heterosporous• strobilus• Micro-• Mega-


• Division Psilophyta – Psilotum or whisk fern

• Division Lycophyta– Selaginella, Lycopodium

• Division Sphenophyta – Equisetum or horsetails

• Division Pterophyta (ferns).


Lycopodium (Club moss)

strobilus


Selaginella (Spike Moss)

Strobilus?


Equisetum (Horse Tail)


Seed Plants


Seed Plants

• Vascular tissues – X and P• Seeds• Gymnosperms and Angiosperms• Reduced gametophyte


Gymnosperms

• have naked seeds• Do not have flowers

• A. Division Cycadophyta (cycads).B. Division Ginkgophyta (maidenhair tree).C. Division Gnetophyta D. Division Coniferophyta (conifers).


Cycas revoluta

Division Cycadophyta


Division Coniferophyta

• the largest group of gymnosperms• pine, cedar, spruce, fir, and redwood trees• naked seeds produced in cones• Evergreen leaves• needle-like leaves- adapted for dry conditions

• Pinus insularis- Benguet pine• Pinus merkusii- Mindoro pine


Male cone- microstrobilus

Seed cone- megastrobilus

Bryophyte,Cryptogams,Gymno

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