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Plant Vocab
Vocab for plant anatomy, reproduction, etc. (bryophytes, vascular seedless, gymnosperms)
41
Biology
Undergraduate 1
03/09/2010

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Term
meiospore
Definition
product of meiosis in plants
Term
placenta
Definition
where gametophyte meets sporophyte
Term
operculum
Definition
"lid" on capsule
Term
hygroscopic
Definition
movement based on humidity
Term
antheridiophore
Definition
structure containing sperm-bearing organ- MALE
Term
archegoniophore
Definition
structure containing egg-bearing organ
Term
dermal tissue system
Definition
"epidermis" of plant
Term
vascular tissue system
Definition
xylem and phloem
Term
ground tissue system
Definition
roots
Term
plant organs
Definition
roots, stems, leaves
Term
apical meristems
Definition
root and shoot (primary growth)
Term
lateral meristems
Definition
secondary growth
Term
microphyll
Definition
leaf with one vascular bundle and no vein networks
Term
megaphyll
Definition
leaf with multiple veins (either branching or parallel)
Term
homospory
Definition
one type of spore
Term
heterospory
Definition
male and female spores
Term
microspore
Definition
male spores
Term
megaspore
Definition
female spores
Term
strobilus
Definition
clusters of sporophylls
Term
sporophyll
Definition
leaf or leaf-like organ that bears spores
Term
sporangia
Definition
structure in which spores are produced
Term
microsporophyll
Definition
leaf-like structure that bears microsporangia
Term
microsporangia
Definition
structure in which microspores are formed
Term
microsporocyte
Definition
cell that undergoes meiosis and to produce 4 microspores
Term
microgametophyte
Definition
pollen grain (4 cells)
Term
tube cell
Definition
cell that develops into pollen tube; conveys male gametophytes to ovule
Term
generative cell
Definition
cell that divides to create sperm
Term
megasporophyll
Definition
leaf or leaf-like structure that bears megasporangia
Term
micropyle
Definition
opening in ovule through which the pollen tube enters
Term
megasporangium
Definition
structure that bears megaspores
Term
megasporocyte
Definition
diploid cell that undergoes meiosis to produce megaspore
Term
megagametophyte
Definition
female gametophyte from a megaspore
Term
archegonia
Definition
egg producing organ
Term
antheridia
Definition
sperm producing organ
Term
cotyledon
Definition
seed leaf (bean halves)
Term
epicotyl
Definition
stem of seedling & first true leaves
Term
hypocotyl
Definition
part of axis below cotyledons
Term
dioecious
Definition
two homes for 2 sexes
Term
monotypic
Definition
only one type
Term
deciduous
Definition
loses its leaves once a year (autumn)
Term
monoecious
Definition
one home for 2 sexes
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