order filicales

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Order Filicales
... a reduced prothallus. Two Families do diverge from the common characters in that they are heterosporous and live in aquatic habitats. Morphology of Order Filicales Family Osmundaceae Osmunda regalis Family Polypodiaceae Adiantum pedatum Athyrium asplendoides Comptosorous rhizophyllus Cysopteris bulbifera Woodsia obtusa Dryopteris spinulosa Onoclea sensibilis Polystichum acrostichoides Pteridium ...
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Morphology of Order Filicales
... Morphology of the Order Filicales Sorus structure has been the basis for dividing the Filicales into Families. This character is sufficiently comprehensive to further subdivide the Families. In recent decades the ... adventitious roots and shoots bearing young leaves. When mature, leaves unfold to develop fronds by circinate vernation. Right: Diagram of l.s. of a mature sorus. Return to Main Menu Order ...
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Fern notes
... attain many feet in height, and indeed are tree-sized plants. There is a distinct alternation of generations, and both generations are independent, photosynthetic plants. II. Taxonomy - Class Filicinae, Order Filicales - chief order, with 11 families; other Fossil forms known. III. Mature sporophyte. A. Leaves or fronds are main portion - differ from angiosperm leaves in that: 1. there is an ...
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