ASCENDING PART. HERBAGE. 7 



18. The Scapus is either simple or branched ; single- 

 or many-flowered ; erect or procumbent ; straight, 

 or wavy ; or spiral, as in Cyclamen and Valisneria 

 after flowering. 



19. Pedunculus, a Flower-stalk, springs from some 

 part of the stem, and bears the flowers and fruit; 

 if radical, it is a Scapus. 



20. A Flower-stalk is either terminal or lateral : if 

 lateral, it is either axillary, or oppositifolius (oppo- 

 site to each solitary leaf), or inierpetidlaris '(between 

 the bases of two footstalks, laterally), or internodis 

 (from the part of a branch between 2 joints, or 

 leaves). It is termed gemmaceus, when proceeding 

 from the same bud with the leaves. It is simple or 

 compound; solitary or aggregate ; erect, spreading, 

 drooping or pendulous. 



21. Flowers destitute of a stalk are termed sessiles, 

 sessile. 



22. Pedicellus, a partial Flower-stalk, is the ultimate 

 division of a Pedunculus (19). It is also used for 

 the Fruit-stalk, elevating the Germen and Fruit 

 in Mosses, and some other plants. 



23. Petiolus, a Footstalk, is the stalk of a Leaf, very 

 rarely connected with, or bearing, the flower-stalks. 

 This part, usually channelled along the upper side, 

 is either simple, as in all simple, and some com- 

 pound leaves ; or compound, either once, twice, 

 or more ; and sometimes, as in the Pea and Vetch 

 tribe, ends in tendrils (47 : 5). 



