•  
  •  
 

Publication Date

1983

Keywords

Stomata; Xerophytes; Leaves

Abstract

Recent general botany and plant anatomy textbooks state that stomatal density of xerophytic leaves is higher than that found in leaves of mesophytes. In contrast, previous textbooks indicate that stomatal density in xerophyte leaves is reduced. The purpose of this study is to examine the leaves of succulent and non-succulent xerophytes to determine if opposite trends in stomatal density correlate with the xeromorphic strategy employed. The species examined were the succulents Crassula argentea, Kalanchoe blossfeldiana, K. diagremontiana, K. tubiflorum, and the non-succulents Nerium oleander, Ammophila breviligulata, and Ficus elastica. Stomatal densities of succulents were determined directly from epidermal peels. Stomatal densities of non-succulents, whose stomates occur in crypts, were determined from cross-sections using stereo logical methods. Results indicate that stomatal density is reduced in leaf succulents and increased in non-succulent types.

First Page

7

Last Page

9

Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.