Anthocerotaceae Apr 2026

The plants in this family possess several features that distinguish them from other bryophytes like mosses and liverworts:

The family currently centers on the genus Anthoceros , which is the largest and most widely distributed.

: Most species have only one large, lens-shaped chloroplast per cell, which contains a pyrenoid —a structure typically found in algae but rare in land plants. anthocerotaceae

: The thallus contains internal cavities filled with mucilage that often host Nostoc , a nitrogen-fixing cyanobacterium.

Anthocerotaceae is the primary family of within the order Anthocerotales. These unique bryophytes are characterized by their simple, thalloid gametophytes and distinctive horn-like sporophytes that grow continuously from a basal meristem. Key Botanical Characteristics The plants in this family possess several features

: The gametophyte is a flat, green, lobed body that lacks internal air chambers.

(PDF) Resolving relationships within the hornwort genus Anthoceros Anthocerotaceae is the primary family of within the

: Unlike other plants, the horn-shaped sporophyte grows from its base, allowing it to produce spores over an extended period. Classification and Taxonomy