{Funaria, |leafy axis, |protonema from |Antheridia, |Archegonia, {Polytrichum|3 rows of |axis, leaves, |with |each with {etc. |leaves |or even |spermatozoids,|egg, on |(similar to |sporogonium. |at end of |female |jungermannia),|(In somegenera |stem of male |plant. |borne on an |by gemmæ.) |plant. |(Calyptra |earlier | | |found on |protonemal | | |sporogonium |stage Male | | |is remnant |and female | | |of archeg- |plants. | | | onium.) | | | | | | | | -------------+--------------+---------------+--------------+---------- ----------------------------------------------------------+--------- SPOROPHYTE. | (Attached to gametophyte and dependent | on it for nourishment.) | ---------------+--------------+------------+--------------+Beginning | Beginning | Sterile | Fertile | of | of | Part. | Part. |Gameto- | Sporophyte. | | | phyte. ---------------+--------------+------------+--------------+ Riccia. |Fertilized |Wall of |Central mass | |egg. (Develops|sporogonium,|(archesporium)| |sporogonium.) |of one-layer|develops .....| Spores. | |cells. | | ---------------+--------------+------------+--------------+--------- Marchantia. |Fertilized |Sterile part|Central part | |egg. (Develops|of stalked |of capsule | |sporogonium.) |capsule is |(archesporium)| Spores. | |stalk, wall |develops .....| | |of capsule |and elaters. | | |of several | | | |layers, | | | |elaters. | | ---------------+--------------+------------+--------------+--------- Jungermannia |Fertilized |Sterile part|Central part | (or |egg. (Develops|of stalked |of capsule | Cephalozia, |sporogonium.) |capsule is |(archesporium)| Spores. Porella, | |stalk, wall |develops .....| etc.) | |of capsule |and elaters. | | |of several | | | |layers, | |