Plant diversity Flashcards
taxon including plantae and charophytes
streptophyta
polymer layer prevents exposed charophyte zygotes from drying out and present in plant spores
sporopollenin
group of microtubules that forms the start of the cell wall during division
phragmoblast
plant group
embryophytes
clusters of sporangia in ferns
sori
cone shaped structures in many lycophytes and in most gymnosperms
strobilli
Phylum of liverworts
Hepatophyta
Phylum of hornworts
Anthoceratophyta
Phylum of mosses
Bryophyta
Phylum of lycophytes
Lycophyta
Phylum of ferns and allies
Monilophyta
Phylum of ginkgo
Ginkgophyta
Phylum of cycads
Cycadophyta
Phylum of Gnetophytes
Gnetophyta
Phylum of Conifers
Coniferophyta
Phylum of flowering plants
Anthophyta
Spore type of clubmosses
Homosporous
Spore type of quillworts
Heterosporous
Spore type of spikemosses
Heterosporous
Spore type of ferns
Mostly homosporous
Grouping of horsetails
Anthrophyta
Spore type of horsetails
Homosporous
Spore type of whisk ferns and allies
Homosporous
Global genus of Whisk Ferns
Psilotum
South pacific genus of Whisk Ferns
Tmesipteris
Moss haploid spores develop into this
Protonemata
on upper part of moss capsule; ring of interlocking, tooth-like structures
Peristome
Sporophytes have a short seta (stalk) with an oval or round capsule elevated on gametophyte “trees”
liverwort
liverworts with flattened gametophytes
thalloid liverwort
stemlike gametophytes have many leaflike appendages
leafy liverwort
sporophyte lacks a seta and is only sporangium
hornwort
compounds in moss cell walls absorb damaging levels of UV radiation present in deserts or at high altitudes
phenolics
compounds that help prevent decay
phenolics
two types of sporangia in heterosporous plants
Megasporangia and microsporangia
leaves bearing megasporangia
megasporophylls
leaves bearing microsporangia
microsporophylls
two types of gametangia
antheridia and archegonia
3 genuses in Gnetophyta
Gnetum, Ephedra, and Welwitschia
South African Gnetophyta
Welwitschia mirabilis
drug produced by Ephedra
ephedrine
Double fertilization produces two zygotes
Gnetophyta
Oldest Bristlecone pine and oldest tree
Methuselah
Two cells of male angiosperm gametophyte
generative cell and tube cell
Double fertilization produces one zygote
Anthophyta
Integument + megasporangium + megaspore
ovule
opening to megasporangium
micropyle
cells on female angiosperm gametophyte opposite the micropyle
antipodal cells
cells on female angiosperm gametophyte flanking the egg cell
synergids
nuclei in central cell of female gametophyte
polar nuclei
ploidy of endosperm
triploid
two parts of stamen
anther and filament
three parts of carpel
stigma, style, and ovary
single carpel
simple pistil
two or more fused carpels
compound pistil
fruit flesh
pericarp
pericarp derived from what structure
ovary wall
3 Basal angiosperms
Amborella, water lilies, and star anise and relatives
includes orchids
monocots
includes laurels
magnoliids
includes black pepper plants
magnoliids
includes strawberries
rosaceae
includes Apple and pear trees
rosaceae
includes peas and beans
legumes
spiral rather than whorled arrangement of floral organs
magnoliids
veins usually netlike
eudicots
veins usually parallel
monocots
vascular tissue arranged in rings
eudicot
vascular tissue scattered
monocots
fibrous root system
monocots
taproot system
eudicots
pollen grain with three openings
eudicots
pollen grain with one opening
monocots
floral organs in multiples of three
monocots
floral organs in multiples of 4 or 5
eudicots
maize originally was this
Teosinte