Guide to Hornworts of Oregon: Gallery of Spores
| The spore gallery compares the spores of all species found in the Pacific Northwest except Phymatoceros bulbiculosis. Phymatoceros is readily recognized by its stalked ventral tubers; sporophytes have not yet been seen on this species in Oregon. All the other hornwort species require study of spores for positive identification. This gallery provices a quick look at spore morphology in one place. Click on a picture to see an enlargement of that image. Additional photographs of spores may be found in the species pages. Click on the name under a picture to link to the species page. | |
 Anthoceros fusiformis |  Anthoceros punctatus |
 Phaeoceros carolinianus |  Phaeoceros oreganus |
 Phaeoceros pearsonii |   Phaeoceros hallii |
| Beginning of Key | Species Index |