Photos
Western White Pine Seedling with spermatis spore drops
| Title: | Western White Pine Seedling with spermatis spore drops |
|---|---|
| Description: | Western white pine seedling with large blister rust canker showing pycnia (spermagonium) stage in June 2007 following inoculation in September 2004. The drops carry spermatia spores. See (http://www.forestpathology.org/dis_wpbr.html) for details of blister rust. |
| Photographer: | Richard Sniezko |
