a small usually single-celled asexual reproductive body produced by many nonflowering plants and fungi and some bacteria and protozoans and that are capable of developing into a new individual without sexual fusion

a sexually produced fungal spore borne on a basidium

a small asexual spore that develops inside the cell of some bacteria and algae

a nonmotile spore of red algae

thick-walled asexual resting spore of certain fungi and algae

an asexually produced fungal spore formed on a conidiophore

a thick-walled sexual spore that develops from a fertilized oosphere in some algae and fungi

a spore of certain algae or fungi that lies dormant; may germinate after a prolonged period

one of the four asexual spores produced within a sporangium

an asexual spore of some algae and fungi that moves by means of flagella

the asexual spore of ferns that resembles dust; once thought to be seeds and to make the possessor invisible

the fine spores that contain male gametes and that are borne by an anther in a flowering plant

smaller of the two types of spore produced in heterosporous plants; develops in the pollen sac into a male gametophyte

larger of the two types of spore produced in heterosporous plants; develops in ovule into a female gametophyte

spore of a rust fungus formed in an aecium

sexually produced fungal spore formed within an ascus

a plant spore formed by two similar sexual cells