Every day brought some new accession to botanical knowledge, or that of other branches of natural history.

Although later botanical knowledge revealed that this system was inadequate, it did lay the foundation for the science of plant taxonomy.

Barton helped to increase Lewis' botanical knowledge and collection skills which obviously worked.

Katanji was suspicious, but a city boy did not have the botanical knowledge, either.

His botanical knowledge led to study of gall wasps .

'It helps to have a little botanical knowledge, used to be known as laudanum.'

The job requires great artistic skill, attention to fine detail, and technical botanical knowledge.

Species Plantarum was his most acclaimed work and a summary of all his botanical knowledge.

Nevertheless, Rock's contributions to botanical knowledge were significant.

George, he rather thought, had some botanical knowledge.