Antheridium of Bracken

| View Cart ⇗ | Info

An illustration of the anteridium of a bracken. An antheridium (plural: antheridia) is a haploid structure or organ producing and containing male gametes (called antherozoids or sperm). Brackens (Pteridium) are a genus of about ten species of large, coarse ferns, in the family Dennstaedtiaceae. The genus has probably the widest distribution of any fern genus in the world, being found on all continents except Antarctica and in all environments except for hot and cold deserts. Therefore it is considered to have a cosmopolitan distribution.




Benson John Lossing, ed. The New Popular Educator (London, England: Cassell & Company Limited, 1891)


TIFF (full resolution)

1746×2400, 460.7 KiB

Large GIF

744×1024, 79.1 KiB

Medium GIF

465×640, 43.2 KiB

Small GIF

232×320, 16.6 KiB