Antheridium

Shepherd VA, Goodwin PB. Seasonal patterns of cell-to-cell communication in Chara corallina Klein ex Willd. 1. Cell-to-cell communication during the development of antheridia. Plant Cell Environ 1992 15 151-162. 

Dioecious In the lower plants referring to the individuals having the archegonia and antheridia on separate plants referring also to those seed plants having staminate and pistillate flowers borne on different individuals. 

Monoecious Having the archegonia or female sex organ and antheridia or male sex organ on different branches of the same plant or producing staminate and pistillate flowers on a single plant. 

Fig. 120.—Fucus vesiculosus. Section of a male conceptacle lined with branched paraphyses which bear the antheridia (highly magnified).

Prothallus (ProthalTium).—thalloid body bearing antheridia and a rche-gonia, produced by the germination of a spore of a Pteridophyte into a protonema which later undergoes differentiation. 

Antheridiogens (D 6.3) F erns (Prothalli) Causing antheridia formation... 

The prothalli of Pteridium aquilinum produce a phytohormone (Apt) which induces the development of antheridia (the male reproductive organs) in many, if not all, polypodiaceous ferns sensu lato (350) such hormones are called antheridogens or antheridiogens. The physiology and chemistry of such fern antheridiogens have been reviewed by Naf, Nakanishi, and Endo (351). From the prothalli of Anemia... 

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