Lycopodiaceae Clubmoss Family. Lycopodiaceae 10-15 genera 350-400 species Consists of a rhizome with...
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Transcript of Lycopodiaceae Clubmoss Family. Lycopodiaceae 10-15 genera 350-400 species Consists of a rhizome with...
Lycopodiaceae
Clubmoss Family
Lycopodiaceae
• 10-15 genera• 350-400 species• Consists of a rhizome with adventitious roots• Small, creeping, terrestrial, vascular plants, which
lack flowers and reproduce sexually by spores. The sporophyte consists of true roots, an aerial stem and scale-like leaves
Lycopodium annotinumBristly clubmoss
-Horizontal stems grow up to 40”, branching, creeping on ground, with upright groups of branching stems -Vertical stem stiff, erect; circular or oval in cross-section; bristly with few branches- Leaves 1/3" long, pointing downward-Cones individual, slim and pointed, yellow, 1 ½ “
Lycopodium clavatumRunning Clubmoss
• It is a spore-bearing vascular plant, growing mainly along the ground with stems up to 1 m long
• Stems have many branches, and have small spirally-arranged leaves -The horizontal stems produce roots allowing the stem to grow indefinitely along the ground
• Leaves are 3-5 mm long. The branches bearing spore cones turn erect, reaching 5-15 cm above ground
• Cones are yellow-green, 2-3 cm long and 5 mm broad
Lycopodium spp.Club mosses
• Have horizontal branching stems, both underground and above
• These plants produce spores in a cone like structure at the end of the stem. Once the spores germinate, they develop into a thallus which then produce male and female egg cells. This can take up to twenty years to complete.
Huperzia lucidulaShining firmoss
• They grow 14-20 cm long, sometimes up to 1 m long
• Leaves are 7-11 mm long, narrow, shiny, and evergreen. The edges are irregularly toothed. The sporangia (spore cases) are in the upper leaves
• Roots of this plant grow from a creeping, branching, underground rhizome
• Bright, vivid green color
Lycopodium dendroideum/hickeyiGroundpines
• Spreads by subterranean horizontal stems, each upright shoot appearing somewhat like a small individual tree.
• The lateral branches are round, not flattened.
Diphasiastrum complanatum/digitatumNorthern & Wirey groundcedar
• A creeping, evergreen, rhizomatous clubmoss; has the appearance of a miniature tree
• Vertical stem– branchlets regularly fan-
shaped, generally on a horizontal plane, flat in cross section, blade-like, their undersides dull, pale, flat; their uppersides green, flat, shiny.
• Horizontal stems are on or just below the surface
• Cones 2-4 per upright shoot, ½"-1½" long; has elongated sterile tip which occurs on about half the specimens. Cone stalks are 1¾"-5" long.
DIGITATUM
COMPLANATUM
References• http://www.botany.hawaii.edu/faculty/carr/lycopodi.htm• http://www.rook.org/earl/bwca/nature/ferns/lycopodann-WIP.html• http://en.wikipedia.org/wiki/Lycopodium_clavatum• http://en.wikipedia.org/wiki/File:Lycopodium_clavatum_151207.jpg• http://cloudbridge.org/plants/lycopod-2.jpg• http://www.voyageurcountry.com/htmls/floweringplants/plants/clubmoss.html• http://upload.wikimedia.org/wikipedia/commons/thumb/7/75/Shining_firmoss.jp
g/735px-Shining_firmoss.jpg• http://www.uwgb.edu/biodiversity/herbarium/pteridophytes/lycden01.htm• http://plants.usda.gov/java/profile?symbol=LYHI2• http://www.ncwildflower.org/images/plants/Diphasiastrum_digitatum_pl
ant.jpg• http://www.rook.org/earl/bwca/nature/ferns/diphasiastrumdi.html• http://www.atlas-roslin.pl/foto/mr/mr-diphasiastrum_complanatum_s121
_29.jpg