572 



STUDIES IN FOSSIL BOTANY 



have an approximately cylindrical form, with their 

 sides somewhat flattened by pressure. Through the 

 middle of each pedicel runs a vascular bundle, which, 

 so far as the preservation allows of an opinion, appears 

 to have had a concentric structure. Outside the 

 vascular strand is a well-marked bundle -sheath, suc- 



;. 204. —fictiuc't/itcsGibsouiaiiHs.—Transverse section of fruit, not quite complete. /■, 

 bracts; s, seeds, ranged in a ring around the fructification ; /, pedicels, belonging 

 to other seeds, borne at a higher le\el ; between the pedicels the interseminal scales 

 can be recognised. The pericarp is the dark 70ne in which the seeds are embedded. 

 X about 3. From a photograph by Dr. ISousfield. S. Coll. 350. 



ceeded by a wide cortex. 1 The surrounding epidermis 

 belongs in reality, as Dr. Wieland has shown, to the 

 adjacent interseminal scales. 



Each pedicel terminates directly in an orthotropous 

 seed. The xylem of the bundle ends at the chalaza 



1 It is possible, however, that the " bundle -sheath " is really the 

 epidermis, and that the so-called "cortex"' is built up of epidermal 

 appendages. 



