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the same swollen, supportiug basal cell, and, the same vertical divisions, 

 though they are in simple pits, not in the elaborate crypts of Ifomcea. 

 Warming (v, p. 193), too, describes glandular hairs in Ipomcea pes-caprce. 



Fig. 13. — Samoltjs kepens. 



a. T.S. leaf of b, X 60. b. Pit with glandular- hair, highly magnified. 

 c. Surface- view of pit with glandular hair, highly magnified. 



He gives it as his opinion that these hairs, as well as those of Glaux mari- 

 tima, function as hydathodes (v. p. 240). 



Fig. 14. — Samolits repens. 



a. T.S. leaf of var. strkta (?). X 60. b. T.S. epidermis of stem, showing pit with 



glandular hair ; highly magnified. 



Mesophyll : (a.) Pahsade parenchyma consists of 4 rows of cells, about 

 twice as long as they are wide. The chlorophyll grains are small, rather 



