Pseudoparmelia caperata
Xanthoparmelia conspersa
Collema w/Nostoc
Usnea
Cladonia cristatella
Cora paronia w/Scytonema
Dictyonema moorei
Physcia stellaris
Buellia
Lecanora
Trebouxia
A. carospora fuscata
A. fuscata
Trebouxia erici w/alagal hyphae
Trebouxia erici, fungal penetration
Trebouxia erici, w/enveloping
Trebouxia erici, early thallus differentiation
Cladomia cristatella
Trebouxia gelatinosa, parasitized
Coleus (dicot) SAM m.l.s.
Alternanthera SAM
Zea mays root m.l.s.
Zea mays RAM close-up
Pisum sativum RAM open organization
Pisum sativum RAM close-up
Aristolochia vessel element; simple perforation plate
Liriodendron vessel element; scalariform perforation plate
Ephedra (Gnetophyta) vessel element; foraminate perforation plate
Pine tracheids with circular bordered pits
Liriodendron vessel element, showing elongate bordered pits
Acer (maple) wood (secondary xylem), t.s.; vessels present
Drimys wood, t.s., no vessels, tracheids only
Liriodendron wood, t.s., diffuse porous
Quercus (oak) wood, t.s. ring porous
Fraxinus (ash) wood, t.s., paratracheal axial parenchyma distribution
Liriodendron wood, t.l.s. multiseriate rays
Liriodendron wood, close-up t.l.s.; scalariform perforation plate
Drimys wood, radial l.s.; side view of ray in upper left corner
Quercus (oak) wood, r.l.s., homocellular ray (all procumbent cells)
Liriodendron wood, r.l.s., heterocellular ray (upright cells on margins of ray, procumbent cells in center of ray)
Clematis developing flower
Lilium kelleyanum
Lilium bud x.s.
Lilium bud
PMC close-up
Early prophase I
Early prophase I close-up
Late prophase I
Metaphase I
Metaphase I close-up
Metaphase II close-up
Telophase II
Tetrad stage of microspores
Mature anther x.s.
Stigma and style with pollen grains and tubes
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