LIGNUM NEPHRITICUM SAFFOED. 



285 



the reflexed almost straight pods, like those in Ortega's figure already 

 referred to. 



It is also quite probable that the more robust Eysenhardtia adeno- 

 sfylis Baillon of Guatemala is a valid species, with pods and leaves 

 much larger than the typical E. polystachya. A leaf of this species 

 is shown in figure 1, h. On the other hand, Eysenhardtia o7'tho- 

 carpa Watson, based upon E. amorplioides var. orthocarfa Gray, 

 collected by Charles Wright in Sonora, approaches so closely to 

 forms of E. polystachya of central and southern Mexico that it can 

 scarcely be separated from that species. Watson recognized that 



Fig. 3. — Eysenhardtia polystacliya, a Jaliscan form with spreading fruit. 



the plants with straight reflexed pods, referred by him to E. ortho- 

 carpa, were specifically distinct from Lindheimer's Texas plant, 

 Avhich was erroneously believed to be identical with E. polystachya 

 (E. amorphoides H. B. K.). E. texana Scheele has much smaller 

 leaves and fewer leaflets, and its pods are ascending on the rachis 

 and subfalcate-incurved, as shown in figure 2. The group of low 

 scrubby plants including Eysenhardtia spinosa Engelmann, E. parvi- 

 folia Brandegee, and E. peninsularis Brandegee, is so distinct from 

 typical Eysenhardtia that it may possibly have to be removed from 

 this genus. To the recently described E. Olivana Safford I have 

 already referred in the footnote on page 279. 



