"Genera Plantarum" was written by ........

Which solution is used to preserve specimens in a jar?

Statement $P$: Botanical gardens provide information regarding the identification of collected,authenticated,and newly discovered plant specimens.
Statement $Q$: Zoological parks provide information regarding the rehabilitation and care of rescued animals.

$A$ "systematic collection of trees, shrubs, herbs, climbers, and other living plants brought from different parts of the world for scientific purposes" is known as .......

Describe Key as a taxonomical aid.

Which one of the following is not a correct statement?