242 



distinct stalklet, the disk of the fruit-summit is more elevated, ascends above the base of the valves, and 

 may even overreach them, while the calycine portion of the fruit is usually distinctly marked with 

 radiating narrow ridges, a characteristic in which the lid also mostly participates. But in the variety 

 Youngiana of E. pyri/ormis the stalklets are almost wanting, though fruit-stalks are always developed. 



Diels remarks : — 



The only near relative of this species is E. piriformis, Turcz., with mature leaves, which occurs in 

 still drier regions. There are forms of this which dififer from the typical E. p7jriformis in several 

 characters in the direction of E. macrocarpa. Some have opposite leaves, others have a white bloom, at 

 least in the inflorescence, the pedicels (generally very distinct) arc occasionally wanting ; in short, one can 

 see that E. pyriformis and E. macrocarpa are sisters, with lielicomorphic distinctions in the vegetative 

 spliere. 



I think the chief differences and resemblances have been already stated. 

 The chiei' practical resemblances lie in the fruit and leaves. 



In the northern specimens the leaves of E. macrocarpa tend to be narrower 

 than the normal, but the leaves of the two species can hardly be confused, those 

 of E. macrocarpa being broad, sessile and glaucous. 



