thallus

/thal-uhs/US // ˈθæl əs //UK // (ˈθæləs) //

苔藓,苔藓类,墙体,苔藓植物

Definitions

n.名词 noun

1
plural thal·li [thal-ahy], /ˈθæl aɪ/, thal·lus·es.Botany, Mycology.
- : a simple vegetative body undifferentiated into true leaves, stem, and root, ranging from an aggregation of filaments to a complex plantlike form.

In these there is a thallus which starts from a central point and continually divides in a forked or dichotomous manner.
The plant-body of a sea weed is called a thallus, and differs considerably in the various species.
Another method is by the agency of little spores (zoospores) that are produced at the edges or extremities of the thallus.
They are many times forked in the same plane, which produces a flat thallus.
The structure of the thallus may serve to represent that of most of the Lichens.