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Gymnosperm
Generas, clades, names, and characteristics or Gymnosperms
29
Biology
Undergraduate 4
02/28/2013

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Cards

Term
Gymnosperm
Definition
Naked Seeds -Seeds not covered within fruit -Often arranged in cones
Term
Cycadaceae(Cycadophyta)
Definition

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The Cycads

Term
Gnetophyta
Definition
The Gnetophytes
-Unique among the gymnosperms in having vessels in the xylem.
Term
Coniferae(Pinophyta)
Definition

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The Conifers

Term
Hypodermis
Definition

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Layer located below dermis consisting of one to two layers of thick-walled cells that provide the plant protection from the environment

Term
Ginko(Ginkgophyta)
Definition

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Ginko (Maidenhair trees) -Single surviving species from what was once a large clade -Has unique Notched, broad, fan-shaped leaves -Dioecious

Term
Lignophytes
Definition
seed plants
Term
Angiospermae
Definition
Angiosperms-flowering plants
Term
Resin
Definition

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A liquid gel that is antiseptic and aromatic, prevents development of fungi, and deters insects.

Term
Taxus
Definition

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Yew -produces ovules surrounded by fleshy aril

Term
Dioecious
Definition
n

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Male and female structures on separate trees.

Term
Araucariaceae
Definition

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Gymnosperm family containing tropical trees such as the Monkey puzzle tree

Term
Cupressaceae
Definition

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Cypress Family Contains junipers, cedars, and redwoods

Term
Pinaceae
Definition

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Pine Family

(Includes hemlocks)

Term
Juniperus virginiana
Definition

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Eastern Red Cedar

Term
Thuja occidentalis
Definition

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Northern White-cedar

Term
Sequoia sempervirens
Definition

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Coastal Redwood

Term
Sequoiadendron giganteum
Definition

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Giant sequoia

Term
Abies
Definition

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Firs

Term
Larix
Definition

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Larches

Term
Picea
Definition

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Spruces

Term
Pinus
Definition

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Pine genus

Term
Pseudotsuga menziesii
Definition

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Douglas fir

Term
Tsuga
Definition

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Hemlocks

Term
Picea abies
Definition

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Norway Spruce

Term
Archegonia
Definition

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Multicellular structure produced by megagametophyte that contains the egg.

Term
Megasporocyte
Definition
Cell that undergoes meiosis forming megaspores
Term
Ovule
Definition

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Specialized megasporangium in which meiosis takes place and the megagametophye develops

Term
Welwitschia
Definition

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Species of desert Gnetophyta possesing two leaves

Dioecious

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