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nouna plant body without true stems or roots or leaves or vascular system; characteristic of the thallophytestype of:
Definition that contains thallus
- genus cladonia type genus of Cladoniaceae; lichens characterized by a crustose thallus and capitate fruiting bodies borne on simple or branched podetia
- genus sphaerocarpos type genus of Sphaerocarpaceae; liverworts with small many-lobed usually orbicular thallus
- alectoria lichens having dark brown erect or pendulous much-branched cylindrical thallus
- ulva type genus of the family Ulvaceae; green seaweed having a thallus two cells thick: sea lettuce
- horsehair lichen any of several lichens of the genus Alectoria having a thallus consisting of filaments resembling hair
- crustose thallus thin crusty lichen thallus; adheres closely to or is embedded in the surface on which it grows
- sporophore a spore-bearing branch or organ: the part of the thallus of a sporophyte that develops spores; in ferns and mosses and liverworts is practically equivalent to the sporophyte
- ramalina shrubby lichens of the family Usneaceae having a flattened thallus
- genus evernia lichens of the family Usneaceae having a pendulous or shrubby thallus
- genus sphaerocarpus type genus of Sphaerocarpaceae; liverworts with small many-lobed usually orbicular thallus