Botany - Classification.

The diversity and evolution of plants / by: (Language materials, printed)

Flora neotropica monograph.. no.47,. scrophulariaceae part I. calceolarieae / by: (Language materials, printed)

Flora neotropica monograph.. 46,. violaceae part I-rinorea and rinoreocarpus / by: (Language materials, printed)

Taxonomy of Polygonum section Echinocaulon (Polygonaceae) / by: (Language materials, printed)

The families of flowering plants : = arranged according to a new system based on their probable phylogeny / by: (Language materials, printed)

Green plants = their origin and diversity / by: (Language materials, printed)

Sampling methods and taxon analysis in vegetation science : = releve surveys, "Vegetationsaufnahmen," floristic analysis of plant communities / by: (Language materials, printed)

The vascular flora of Pennsylvania : = annotated checklist and atlas / by: (Language materials, printed)

Diversity and classification of flowering plants / by: (Language materials, printed)

Blumea. by: (Language materials, printed)

Polygonum

Angiosperms- Classification.

Botany.

Plants- Evolution.

Botany

Variation (Botanique)

Plant communities- Research.

Sampling (Statistics)

Plants- Phylogeny.

Botanique.

Botany- Classification.

Plantes

Plantes- 榼volution.

Botany- United States

Vegetation classification.

Vegetation surveys.

Botany- Classification.- Latin America

Botany- Classification.- Tropics

Phytogeography

Angiosperms.

Plants

Plants- Variation.