Sterile stems of vigorous Equisetum telmateia in November, in bed Torrent Major of Soller Valley on the Island of Mallorca.
Strobilus detailed above, with the sporangiophores to be separated as they mature and reveal the green sporangia filled with spores.
Mature spores of Equisetum telmateia bags out of the sporangia to start the adventure of a lifetime. The spores can be male or female. When germinating produce male and female gametophytes and in turn they produce male and female gametes. After fertilization of the oosphere of a female gametophyte by antherozoids of a male gametophyte, is born a new Equisetum telmateia. (Double click on the picture to enlarge)