Thallus

[θælәs]

解释:

(noun.) a plant body without true stems or roots or leaves or vascular system; characteristic of the thallophytes.

拜伦整理--From WordNet

解释:

(n.) A solid mass of cellular tissue, consisting of one or more layers, usually in the form of a flat stratum or expansion, but sometimes erect or pendulous, and elongated and branching, and forming the substance of the thallogens.

编辑:罗伊

解释:

n. a vegetative body showing little or no differentiation into leaf stem and root and characteristic of the Thall′ophytes or lower Cryptogamia including alg? fungi and lichens.—adjs. Thall′iform of the form of a thallus; Thall′ine Thallod′ic pertaining to a thallus.—n. Thall′ogen a thallophyte.—adjs. Thallog′enous belonging to the thallogens; Thall′oid Thall′ose resembling a thallus.—ns. Thall′ōme a thallus; Tham′nium the branched shrub-like thallus of fruticulose lichens.

凯瑟琳整理