Name that genus
These are spherical colonies containing hundreds of biflagellate cells, embedded in a matrix, moving with a rolling motion.
What is Volvox?
Tracheary elements have secondary cell walls strengthened with this complex molecule.
What is lignin?
This group of "green algae" contains many species that live as endosymbionts in lichens, protists, etc.
What are "Trebouxiophyceae"
Gametophytes are the conspicuous part of the lifecycle in this group of plants.
What are "bryophytes" ("non-vascular plants")?
This paraphyletic group contains the green algae most closely related to land plants.
What is "Charophyceae"?
These plantlike green algae have a node-internode body plan with whorled branches.
What is Chara?
This is the term for leaves in Euphyllophytes.
What is a megaphyll?
Members of this group are an important source of food for arctic animals such as musk ox, caribou, and arctic hares.
What are Bryophyta (mosses). (Andreaeidae acceptable)
Gametophytes of this group can be either thalloid or leafy.
What are Marchantiophyta (liverworts)?
This paraphyletic group would be monophyletic if it included vascular plants.
What are "bryophytes" ("non-vascular plants")?
Members of this "bryophyte" genus have explosive capsule dehiscence and are often included in soil mixes to increase water-retention.
What is Sphagnum?
This is the term describing a plant organ that contains sugars that are being transported elsewhere in the phloem.
What is a source?
Members of this group have dark pigments protecting them against high levels of solar radiation and are often found in high latitude or high elevation habitats.
What are Andreaeidae (granite or lantern mosses)?
This structure is the expanded, basal part of the archegonium that contains the egg.
What is the venter?
Members of this paraphyletic group have a multilayered structure, but not sterile-jacketed gametangia.
What are "Charophyceae"?
If you see a small, green, disk-like organism with sheathed hairs growing in freshwater, it is likely a member of this genus.
What is Coleochaete?
Tracheids have pits, but vessel elements also have these structures for conducting water from cell to cell.
What are perforations?
Waters in these habitats, where Sphagnum mosses are often abundant, are anoxic, thus allowing organic matter to build up and form peat.
What are bogs?
In "bryophytes", this structure is shared between the gametophyte and sporophyte and is made of tissue from both. (Hint: it plays a role in nutrient transfer.)
What is the placenta?
This paraphyletic groups includes some heterosporous members, but not seed plants.
What are "seedless vascular plants"?
This is a genus of parasitic green algae.
What is Helicosporidium?
This is the type of phyllotaxy found in Lycopodiopsida (lycophytes)?
What is spiral?
Members of this group were accidentally released into the Mediterranean Sea, where they have become incredibly invasive.
What are Caulerpa ("Ulvophyceae" OK).
Gametophytes of this group of plants contain intercellular spaces housing N-fixing Nostoc cyanobacteria.
What are Anthoceratophyta (hornworts)?
This paraphyletic group contains Ostreococcus, one of the smallest eukaryotes.
What are "prasinophytes"?