Of or pertaining to a thallus.

Of the form of a thallus.

Formed like, of the nature of, or pertaining to a thallus.

= prothallial, adj.

Of the nature of or resembling a prothallus. Cf. prothallial, adj.

of or relating to a protonema.

Of or relating to a prothallus.

Having the form of a thallus.

= protonemal adj.

= thalloid, adj.