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True Mosses - Evolution and Diversity of Plants - Lab Manual

Study Notes, Biology

Post: January 12th, 2013
Description
This lecture is from Evolution and Diversity of Plants. Key important points of lab manual are: True Mosses, Moss Archegonia, Moss Capsule, Mnium Sporophyte, Polytrichum Sporophyte, Filamentous Protonema, Jacket Cells, Sperm Mass, Perigonial Leaves, Filamentous Protonema
This lecture is from Evolution and Diversity of Plants. Key important points of lab manual are: True Mosses, Moss Archegonia, Moss Capsule, Mnium Sporophyte, Polytrichum Sporophyte, Filamentous Protonema, Jacket Cells, Sperm Mass, Perigonial Leaves, Filamentous Protonema
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Contents
Evolution and Diversity of Plants Lab 9 - True Mosses A) DRAW 1) Moss Archegonia (Slide) • Draw the tip of a female moss, indicating the following structures with labels: perichaetial leaves (i.e., leaves on the edge of the stem tip), 3-4 female gametangia (= archegonia), paraphyses, venter region, neck region, egg, ventral canal cell, neck canal cells, neck cells 2) Moss Antheridia (Preserved) • Draw the tip of a male moss, indicating the following structures with labels: perigonial leaves (i.e., leaves on the edge of the stem tip), 4-5 male gametangia (= antheridia), jacket cells, sperm mass, paraphyses 3) Moss Sporangium = Moss Capsule (Slide – l.s.) • Draw a moss sporangium (= “capsule”), indicating the following structures with labels: sporangium wall, columella, spore chamber, spores (or sporocytes, depending on maturity), operculum, annulus (if visible), peristome teeth B) OBSERVE (if available) 1) Mnium sporophyte (Preserved) • Be sure you can identify the foll..

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