Plant sexuality deals with the wide variety of sexual reproduction systems found across the plant kingdom. This article describes morphological aspects of sexual reproduction of plants. That ...

A variety of schemes are employed currently for the classification of plants into higher taxa. The two most widely used schemes, the traditional kingdom Plantae with sub-kingdoms Thallophyta and ...

Domestic Botany: an Exposition of the Structure and Classification of Plants, and of their Uses for Food, Clothing, Medicine, and Manufacturing Purposes.

The existence, however, of the very large neutral group which possesses no clearly defined critical photoperiod2 might almost alone indicate the invalidity of that classification; but the ...