thallus
Lichen's simple form
A thallus is a plant body that lacks the differentiated structures—roots, stems, leaves—found in higher plants.
The term applies to algae, fungi, lichens, and some liverworts, whose tissues are relatively undifferentiated: The lichen's thallus spread across the rock face.
Plural: thalli or thalluses.
Large brown marine algae
- seaweedSaltwater aquatic plants
- frondLarge, segmented plant blade
- holdfastDevice for secure attachment
- bladeFlat cutting edge
stipe · lamina · air bladder · rhodophyta · chlorophyta · macroalgae · dulse · nori
Fungal filament network
- hyphaeFungal filamentous structures
- sporesAsexual reproductive bodies
- mushroomFleshy fungal body
- moldForm-giving container
yeast · basidiomycota · ascomycota · mycology · chitin · penicillium · aspergillus · shiitake
Spore-bearing ground cover
- liverwortPrimitive spore-bearing plant
- hornwortSpore plant with projections
- gametophyteHaploid reproductive generation
- sphagnumAbsorbent bog moss
non-vascular · hepatic · gemma
Not separated into types
- vegetativeOf plant growth
- filamentousComposed of thin strands
- colonialOf occupied territories
- cortexOrgan's external tissue
medulla · rhizoid · prostrate · erect · branching · lobed · unicellular · multicellular
Interspecies biological interdependence
- bioindicatorSpecies showing ecosystem health
- cortexOrgan's external tissue
- medullaInnermost organ tissue
- reindeer mossBranching arctic lichen
Light-harvesting plant pigment
- chloroplastLight-harvesting cell structure
- pigmentsColor-giving compounds
- carotenoidsFat-soluble plant pigments
- light-dependentRequiring illumination to function
kelp
Large brown marine algae
- seaweedSaltwater aquatic plants
- frondLarge, segmented plant blade
- holdfastDevice for secure attachment
blade · stipe · lamina · air bladder · rhodophyta · chlorophyta · macroalgae · dulse · nori · wakame
mycelium
Fungal filament network
mold · yeast · basidiomycota · ascomycota · mycology · chitin · penicillium · aspergillus · shiitake · truffle
moss
Spore-bearing ground cover
- liverwortPrimitive spore-bearing plant
- hornwortSpore plant with projections
- gametophyteHaploid reproductive generation
sphagnum · non-vascular · hepatic · gemma
undifferentiated
Not separated into types
- vegetativeOf plant growth
- filamentousComposed of thin strands
- colonialOf occupied territories
cortex · medulla · rhizoid · prostrate · erect · branching · lobed · unicellular · multicellular
symbiosis
Interspecies biological interdependence
- bioindicatorSpecies showing ecosystem health
- cortexOrgan's external tissue
- medullaInnermost organ tissue
chlorophyll
Light-harvesting plant pigment
- chloroplastLight-harvesting cell structure
- pigmentsColor-giving compounds
- carotenoidsFat-soluble plant pigments
thallusflowering plant
Seed-in-fruit producer
angiosperm · gymnosperm · fern · true leaves