PLB 127 Quiz 1 (Labs 3, 4, 5)

Pinus (Pinaceae)

Three types of leaves, scale-like on branches, obvious needles in fascicles, sheath leaves surrounding

Picea (Pinaceae)

Leaf bases are decurrent (not really distigusiable), wood pegs on stems, seed cones hang down with thin scales

Abies (Pinaceae)

Flattened leaves with neat looking needles, do not have decurrent bases, stems smooth, seed cones upright on branches

Pseudotsuga (Pinaceae)

Have little teeth

Juniperus (Cupressaceae)

leaves awl llike and close to the stem, seed cones are round and fleshy

Calocedrus (Cupressaceae)

Leaf shape and arrangement make stems look flattened, scale of seed cones woody and look like duck bills

Sequoia (Cupressaceae)

Redwoods, leaves very flattened needles but scale like leaves near the top of the ree, seed cones are borne at the very end of the branches

Sequoiadendron (Cupressaceae)

leaves are more bunched together than others

Torreya (Taxaceae)

Dioecious, alterante flat needles, seed cones look like a berry, for Torreya the aril is green of purplish and the top is enclosed instead of open

Ephedra (Ephedraceae)

buds look like little dots

Gnetum (Gnetaceae)

very big generic looking leaves

Welwitschia (Welwitschiaceae)

cycad like cones with big long leaves

Ginkgo (Ginkgoaceae)

Cycadales

Amborella (Amborellaceae)

teethed leaves, simple

Nymphaeaceae

aquatic, water lilies

Magnoliaceae

elgonated recptical

Annonaceae

3 perinath whorls

Umbellularia (Lauraceae)

yellow flowers, bay leaf

Calycanthus (Calycanthaceae)

Aristolochia (Aristolochiaceae)

Asarum (Aristolochiaceae)

Piperaceae

Lycopodiaceae

sometimes has little cones or yellow dots

Isoetaceae

Selaginellaceae

thick and dense

Equisetum (Equisetaceae)

Ophioglossaceae

Polypodium (Polypodiaceae)

Adiantum (Pteridaceae)

leaves are rolled back to hide sori

Pentagramma (Pteridaceae)

Spits off into three leaves, sori coating the bottom

Azolla (Azollaceae)