Figure 185d - Polygala lutea (digital photographs taken by Nathan Howell; illustration from Britton and Brown 1913) Inflorescenc
Figure 188b - Berchemia scandens (digital photographs taken by; illustration from United St...
Figure 133f - Cyrilla racemiflora (digital photographs taken by Nathan Howell [inflorescenc...
Figure 122d - Pluchea baccharis (digital photographs taken by Nathan Howell) ...
Figure 205b - Gordonia lasianthus (digital photographs taken by Nathan Howell; illustration...
Figure 205f - Gordonia lasianthus (digital photographs taken by Nathan Howell; illustration...
Figure 205e - Gordonia lasianthus (digital photographs taken by Nathan Howell; illustration...
Figure 133e - Cyrilla racemiflora (digital photographs taken by Nathan Howell [inflorescenc...
Figure 191d - Aronia arbutifolia (digital photographs taken by Nathan Howell; illustration ...
Figure 40d - Cladium mariscoides (digital photographs taken by Nathan Howell) ...
Figure 181c - Ludwigia sphaerocarpa (digital photographs taken by Nathan Howell) ...
Figure 210d - Hydrocotyle verticillata (digital photographs taken by Alexander Krings) ...
Figure 177d - Nyssa aquatica (digital photographs taken by Nathan Howell [leaves, fruits] a...
Figure 173e - Morella cerifera (digital photographs taken by Nathan Howell; illustration fr...
Figure 183b - Nuttallanthus canadensis (digital photographs taken by Nathan Howell [inflore...
Figure 118d - Euthamia caroliniana (digital photographs taken by Nathan Howell [capitulesce...
Figure 188b - Berchemia scandens (digital photographs taken by; illustration from United St...
Figure 133f - Cyrilla racemiflora (digital photographs taken by Nathan Howell [inflorescenc...
Figure 122d - Pluchea baccharis (digital photographs taken by Nathan Howell) ...
Figure 205b - Gordonia lasianthus (digital photographs taken by Nathan Howell; illustration...
Figure 205f - Gordonia lasianthus (digital photographs taken by Nathan Howell; illustration...
Figure 205e - Gordonia lasianthus (digital photographs taken by Nathan Howell; illustration...
Figure 133e - Cyrilla racemiflora (digital photographs taken by Nathan Howell [inflorescenc...
Figure 191d - Aronia arbutifolia (digital photographs taken by Nathan Howell; illustration ...
Figure 40d - Cladium mariscoides (digital photographs taken by Nathan Howell) ...
Figure 181c - Ludwigia sphaerocarpa (digital photographs taken by Nathan Howell) ...
Figure 210d - Hydrocotyle verticillata (digital photographs taken by Alexander Krings) ...
Figure 177d - Nyssa aquatica (digital photographs taken by Nathan Howell [leaves, fruits] a...
Figure 173e - Morella cerifera (digital photographs taken by Nathan Howell; illustration fr...
Figure 183b - Nuttallanthus canadensis (digital photographs taken by Nathan Howell [inflore...
Figure 118d - Euthamia caroliniana (digital photographs taken by Nathan Howell [capitulesce...
Figure 188b - Berchemia scandens (digital photographs taken by; illustration from United St...
Figure 133f - Cyrilla racemiflora (digital photographs taken by Nathan Howell [inflorescenc...
Figure 122d - Pluchea baccharis (digital photographs taken by Nathan Howell) ...