Abstract: The following problems of textbook of Botany (the part taxonomy of Aangiosperms) (Wu Guo Fang et al., 1992) were discussed: 1. The Cronquist’s system of classification of flowering plants; 2. The systematic position of Hornwort Family (Ceratophyllaceae); 3. Principles of Angiosperm taxonomy; 4. The description of the figures and characters; 5. The description of some taxa.