BULLIFORM CELLH. 



Fio. .'51. -Part of ii »i>('lioii of tlie Iciif yf Mniiroii atmarrom, sliowinu tlirco gruupa oil 

 lumu bullifurui cullt), uxttiudiutf iur iutu tlio biadu. 1 )(OU.—(Sud worth.) 



Fu}. 34.— Part of a section, including mid-rib, of a leaf of Cathesteehum erectum, 

 sliowinK two groups of buUiilorui cella u^^ttiaduig twu*thirds of the way across tlie 

 leaf. 1 xa80.—(Sud worth.) 





Fig. a").— Section of part of a leaf ot Epicampea liffuMa, showing five groups of hxA- 

 liform cells. 1 x 00.— (budworth.) 



