to see all species with links to their anatomy page go here: species links |
Group 1: reticulate parenchyma
classic semi ring porous with a clear row of earlywood pores that only gradually reduce in size over the course of the year's growth rays are present and generally visible with a 10X loupe (but never with the naked eye) growth ring boundaries are clear to the naked eye reticulate parenchyma, usually obvious and easily visible at 10X (sometimes vague) varying quantities of pore multiples from few to many |
Group 2: diffuse-in-aggregate parenchyma
semi ring porous with a slightly vague row of earlywood pores that only gradually reduce in size over the course of the year's growth multitudinous diffuse-in-aggregate parenchyma lines are present (but sometimes hard to see even with a 10X loupe) and marginal parenchyma rays are present but usually are hardly visible even with a 10X loupe |
Group 4: strong rays
This group is misc semi diffuse and semi ring porous with ray that are close together and easily visible with a 10X loupe but not necessarily to the naked eye |
Group 5: winged aliform parenchyma
winged type aliform parenchyma, sometimes with long wings pores medium to small, fairly sparse, pore multiples are rare growth rings faint to invisible, even with a 10X loupe |
Group 6: strong line of earlywood pores
semi ring porous with a very heavy line of earlywood pores that only gradually reduce in size over the course of the year's growth growth ring boundaries are obvious to the naked eye |
Group 7: thick vasicentric parenchyma
large/moderate sized pores with thick vasicentric parenchyma rays always present, usually easily visible at 10X but never to the naked eye |
Group 8: relatively sparse pores
relatively sparse pores, a slightly vague row of earlywood pores that only gradually reduce in size over the course of the year's growth but often not visible even with a 10X loupe. rays are present but hardly visible even with a 10X loupe |
Group 9: small, medium density pores, obvious rays
medium density, very small pores, a thin, sometimes vague, row of earlywood pores that only vary slightly in size over the course of the year's growth, growth ring demarcation is weak but generally visible to the naked eye rays are clear with a 10X loupe but not to the naked eye |
Group 10: semi diffuse porous particularly obvious growth ring boundaries due to very significant color change from latewood to the next earlywood, rays are numerous but weak (sometimes visible with a 10X loupe) |
Group 11: ulmiform pore groups |
Group 12: OTHER semi ring porous and semi-diffuse porous species that do not fit readily into the other categories above |