Opinions from F. H. Knowlton 1899
- 'Acacia belongs to Leguminosae'
- 'Acacia lamarensis belongs to Acacia'
- 'Acacia macrosperma belongs to Acacia'
- 'Acacia wardii belongs to Acacia'
- 'Acer belongs to Aceraceae'
- 'Acer vivarium belongs to Acer'
- 'Aralia belongs to Araliaceae'
- 'Aralia serrulata belongs to Aralia'
- 'Aralia wrightii belongs to Aralia'
- 'Arctostaphylos belongs to Ericaceae'
- 'Arctostaphylos elliptica belongs to Arctostaphylos'
- 'Artocarpus belongs to Urticaceae'
- 'Artocarpus quercoides belongs to Artocarpus'
- 'Asplenium belongs to Filices'
- 'Asplenium haguei belongs to Asplenium'
- 'Asplenium iddingsi belongs to Asplenium'
- 'Asplenium remotidens belongs to Asplenium'
- 'Betula belongs to Betulaceae'
- 'Betula iddingsi belongs to Betula'
- 'Carpites pedunculatus belongs to Carpites'
- 'Carpolithes osseus belongs to Carpolithes'
- 'Castanea belongs to Fagaceae'
- 'Castanea pulchella belongs to Castanea'
- 'Celastrus belongs to Celastraceae'
- 'Celastrus culveri belongs to Celastrus'
- 'Celastrus ellipticus belongs to Celastrus'
- 'Celastrus inaequalis belongs to Celastrus'
- 'Cinnamomum belongs to Lauraceae'
- 'Cinnamomum spectabile belongs to Cinnamomum'
- 'Cissus belongs to Vitaceae'
- 'Cissus haguei belongs to Cissus'
- 'Cornus belongs to Cornaceae'
- 'Cornus wrightii belongs to Cornus'
- 'Corylus belongs to Betulaceae'
- 'Credneria belongs to Credneriaceae'
- 'Credneria pachyphylla belongs to Credneria'
- 'Cyperacites belongs to Cyperaceae'
- 'Cyperacites giganteus belongs to Cyperacites'
- 'Devallia belongs to Filices'
- 'Diospyros belongs to Ebenaceae'
- 'Diospyros brachysepala belongs to Diospyros'
- 'Diospyros haguei belongs to Diospyros'
- 'Diospyros lamarensis belongs to Diospyros'
- 'Diospyros stenosepala belongs to Diospyros'
- 'Dryophyllum belongs to Fagaceae'
- 'Dryophyllum longipetiolatum belongs to Dryophyllum'
- 'Dryopteris belongs to Filices'
- 'Dryopteris weedii belongs to Dryopteris'
- 'Dryopteris xantholithense belongs to Dryopteris'
- 'Elaeodendron belongs to Celastraceae'
- 'Equisetum belongs to Equisetaceae'
- 'Equisetum canaliculatum belongs to Equisetum'
- 'Equisetum deciduum belongs to Equisetum'
- 'Equisetum haguei belongs to Equisetum'
- 'Fagus belongs to Fagaceae'
- 'Fagus undulata belongs to Fagus'
- 'Ficus belongs to Urticaceae'
- 'Ficus deformata belongs to Ficus'
- 'Ficus densifolia belongs to Ficus'
- 'Fraxinus belongs to Oleaceae'
- 'Fraxinus wrightii belongs to Fraxinus'
- 'Grewiopsis belongs to Tiliaceae'
- 'Grewiopsis aldersoni belongs to Grewiopsis'
- 'Hicoria belongs to Juglandaceae'
- 'Hicoria crescentia belongs to Hicoria'
- 'Hicoria culveri belongs to Hicoria'
- 'Juglans belongs to Juglandaceae'
- 'Juglans crescentia belongs to Juglans'
- 'Juglans laurifolia belongs to Juglans'
- 'Laurinoxylon pulchrum belongs to Laurinoxylon'
- 'Laurus belongs to Lauraceae'
- 'Laurus montana belongs to Laurus'
- 'Laurus perdita belongs to Laurus'
- 'Leguminosites belongs to Leguminosae'
- 'Leguminosites lamarensis belongs to Leguminosites'
- 'Litsea belongs to Lauraceae'
- 'Litsea cuneata belongs to Litsea'
- 'Magnolia belongs to Magnoliaceae'
- 'Magnolia culveri belongs to Magnolia'
- 'Magnolia microphylla belongs to Magnolia'
- 'Magnolia pollardi belongs to Magnolia'
- 'Magnolia spectabilis belongs to Magnolia'
- 'Malapoenna belongs to Lauraceae'
- 'Malapoenna lamarensis belongs to Malapoenna'
- 'Musophyllum belongs to Musaceae'
- 'Myrica lamarensis belongs to Myrica'
- 'Myrica wardii belongs to Myrica'
- 'Onoclea minima belongs to Onoclea'
- 'Osmunda belongs to Filices'
- 'Paliurus belongs to Rhamnaceae'
- 'Paliurus minimus belongs to Paliurus'
- 'Persea belongs to Lauraceae'
- 'Phragmites belongs to Typhaceae'
- 'Phragmites falcata belongs to Phragmites'
- 'Phragmites latissima belongs to Phragmites'
- 'Phyllites belongs to Oleaceae'
- 'Phyllites crassifolia belongs to Phyllites'
- 'Pinus belongs to Coniferae'
- 'Pinus gracilistrobus belongs to Pinus'
- 'Pinus iddingsi belongs to Pinus'
- 'Pinus macrolepis belongs to Pinus'
- 'Pinus premurrayana belongs to Pinus'
- 'Pinus wardii belongs to Pinus'
- 'Pityoxylon amethystinum belongs to Pityoxylon'
- 'Planera belongs to Ulmaceae'
- 'Platanus belongs to Platanaceae'
- 'Platanus montana belongs to Platanus'
- 'Populus belongs to Salicaceae'
- 'Populus vivaria belongs to Populus'
- 'Populus xantholithensis belongs to Populus'
- 'Pterospermites belongs to Sterculiaceae'
- 'Pterospermites haguei belongs to Pterospermites'
- 'Quercinium lamarense belongs to Quercinium'
- 'Quercus belongs to Fagaceae'
- 'Quercus culveri belongs to Quercus'
- 'Quercus grossidentata belongs to Quercus'
- 'Quercus hesperia belongs to Quercus'
- 'Quercus magnifolia belongs to Quercus'
- 'Quercus weedii belongs to Quercus'
- 'Quercus yanceyi belongs to Quercus'
- 'Rhamnus belongs to Rhamnaceae'
- 'Rhus belongs to Anacardiaceae'
- 'Salix belongs to Salicaceae'
- 'Sapindus belongs to Sapindaceae'
- 'Sapindus grandifolioloides belongs to Sapindus'
- 'Sapindus wardii belongs to Sapindus'
- 'Sequoia belongs to Coniferae'
- 'Smilax belongs to Smilaceae'
- 'Smilax lamarensis belongs to Smilax'
- 'Sparganium belongs to Sparganiaceae'
- 'Taxites belongs to Coniferae'
- 'Tilia belongs to Tiliaceae'
- 'Ulmus belongs to Ulmaceae'
- 'Ulmus rhamnifolia belongs to Ulmus' according to Ward 1885
- 'Woodwardia belongs to Filices'
- 'Woodwardia preareolata belongs to Woodwardia'
- 'Ziziphus belongs to Rhamnaceae'
- 'Zizyphus serrulatus belongs to Zizyphus' according to Ward 1885