seedless vascular plants

xylem

straws that transport water, minerals, and dead cells up from roots

2 types of vascular tissue

xylem, phloem

phloem

living cells that distribute sugars, amino acids down in plant

roots

organs that anchor vascular plants and absorb water and nutrients from soil

leaves

organs that increase surface area of vascular plants

microphyll leaves

single vein

megaphyll leaves

highly branched veins

sporophylls

modified leaves with sporangia

sori

clusters of sporangia on underside of sporophylls

strobili

cone-like structures formed from groups of sporophylls

megasporanium produces

female gametophyte

microsporangium produces

male gametophyte

what is the dominant phase in the life cycle

sporophyte

homosporous

produces one type of spore that develops into bisexual gametophyte; most sv plants are this

heterosporous

produce megaspores and microspores; all s plants and some sv plants are this