User: how is gametophyte of Marchantia sp. differ from the gametophyte of Polytrichum sp.?

Note: The gametophyte of Marchantia (a liverwort) is a flattened thallus while Funaria (a moss) gametophytes have a stem with "leaves" (properly termed phyllids). [ Both are anchored by rhizoid filaments.You are asking for the defining characteristics of a liverwort Marchantia versus a moss Polytrichum. Liverworts come in two basic types; the leathery, lobed thalloid sheets and the leafy or moss-like gametophytes. Only the edges of liverwort leaves have lobes or points. The leaves are aligned in two rows along the stem. Moss leaf edges may be serrated but are never lobed. The majority are smooth edged, all the same size, and are arranged in a spiral along the stem Only moss have phyllids (leaf-like flanges) with cells along the midline that have a facilitated internal osmosis of water: prevascular xylem-like hydroid cells and the phloem-like leptoid cells. Liverworts lack these cell types. ]
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Weegy: You are asking for the defining characteristics of a liverwort Marchantia versus a moss Polytrichum. Liverworts come in two basic types; the leathery, lobed thalloid sheets and the leafy or moss-like gametophytes. [ Only the edges of liverwort leaves have lobes or points. The leaves are aligned in two rows along the stem. Moss leaf edges may be serrated but are never lobed. The majority are smooth edged, all the same size, and are arranged in a spiral along the stem Only moss have phyllids (leaf-like flanges) with cells along the midline that have a facilitated internal osmosis of water: prevascular xylem-like hydroid cells and the phloem-like leptoid cells. Liverworts lack these cell types.http://malaysia.answers.yahoo.com/question/index?qid=20111213111128AAxI5qR ]
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