BULLIFORM CELLS. 



FIG. 23. Cross-section of part of a leaf of 

 Dactylis glomerata showing one band of bulli- 

 form cells on the upper side of the middle. 

 1 - 38.-(Sudworth). 



1. The leaves of Dactylis 

 glomerata (orchard grass or 

 cock's foot) have one median 

 hand of bulliform cells. 



2. In Chloris petrcea, and 

 others there is one middle 1 

 band, and one or more on each side. 



3. The leaves of Poa 

 pratensis (June grass) and 

 some others have two bands, 

 one each side of the middle. 



4. In case of Andropogon 

 squarrosum and others 

 there is one band each side FlQ . 24.-A cross-section of part of a leaf of 



, ,. .,,, , ,, Poa pratensis (June grass) showing one band of 



Of the middle and a Small bulliform cells each side of the middle. 1 x 75. 

 (Sudworth). 



one at each edge. 



FIG. 25. A portion of a cross section of a leaf of Phleum prateme (Timothy), show- 

 ing bands of bulliform cells on each side the middle, and others between the veins. 

 1 x 20.-(Sudworth.) 



5. The leaves of Phleum pratense( Timothy), and many others 

 have one band of several shallow cells each side the middle, and 

 others between the veins. 



6. The leaves of Zea mays (Indian corn), and many others, 

 have a band between each two primary bundles, and above each 

 tertiary bundle. 



