APPENDIX. 



HO IV TO DESCRIBE PLANTS. 



WHEN the student has acquired facility in filling up schedules 

 from plants belonging to all the principal divisions of Phanero- 

 gamia, it is desirable that he should proceed to describe speci- 

 mens more at length, as shown in the following examples. As 

 the principal use of the schedules is to compel the attention to cer- 

 tain important points of structure, care must be taken never to 

 omit reference to these important points in describing plants in 

 this way. If, however, as is best, the description be headed 

 with the Class and Division to which the plant belongs, it is 

 not necessary (except in Examination exercises) to detail all the 

 characters which are implied by referring it to such Class and 

 Division. The organs must be described seriatim in the order of 

 their development. 



COMMON WALLFLOWER. Cheiranthus Cheiri. 

 CLASS Dicotyledons. Division Thalamiflorae. 



A herbaceous plant, somewhat woody below, with alternate 

 entire exstipulate leaves, and racemose ebracteate flowers. 



ROOT biennial, woody, branched. 



STEM erect, branched, leafy, slightly angular, hoary at first, 

 with minute adpressed hairs, glabrescent. 



LEAVES cauline, alternate, linear-lanceolate or lanceolate 

 acute, attenuate below, entire or slightly-toothed, glabrous, 

 exstipulate. 



RACEMES terminal, erect, many-flowered. 



FLOWERS regular, ebracteate. 



T 2 



