Flora Library
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dichotomously branching axes
Listing 1 - 2 from 2 for dichotomously branching axes
late early sporing plants early devonian virtual paleobotany laboratory seed habit terminally positioned sporangia euphyllophyte clade axes bearing flowering plants pollen coat life history modifications vascular land plants parent sporophyte land plant vascular system sporophytic tissue
The Earliest Land Plants
... shows many anatomical details. The equally sized Zosterophyllophytes are characterized by having dichotomously branching axes bearing laterally inserted sporangia; sporangia may be standing in strobili. Some ... are a group Early and Middle Devonian plants with either dichotomously branching axes, or with a monopodial main axes. The Trimerophytes were certainly the most robust plants occurring ...
www.uni-muenster.de
Lab VII - The Origin of Seed Plants (1)
... characterized by a main axis that branches pseudomonopodially rather than dichotomously (Figure 7.2), although branching is generally very irregular. Axes may branch five or six times before terminating in ... to be one of those that lacks spines on the axes. (A) Reconstruction of sterile and fertile axes. Note irregular branching pattern. (B) Centrarch protostele with protoxylem black and metaxylem ...
www.ucmp.berkeley.edu