214 



TRANS. ST. LOUIS ACAD. SCIENCE. 



border of Alabama ; but it is said to grow also in Mississippi and 

 Louisiana. 



X -ax . flaccida : the contracted panicle is usually shorter than the 

 peduncular part of the scape. 



Var. IcBvigata I have now also seen in cultivation, remarkable 

 for the narrow, smooth, flaccid or even prostrate leaves ; the tall 

 (6-9 feet high) scape purplish-brown ; the narrow panicle three 

 times as long as wide, about as long as the peduncular part of the 

 scape ; flowers and young fruit with purplish tinge ; secondary 

 dissepiments of large capsule very incomplete, or almost want- 

 ing ; in the wild plant they are nearly perfect. 



Page 54. T. Whipplei does not occur north of Monterey ; it 

 abounds near San Luis Obispo, whence Dr. W. W. Hays has sent 

 seeds and living plants. 



The following synopsis exhibits at a glance the arrangement of 

 the species and their geographical distribution : 



Yucca, Lin. 

 Sarcoyucca. 

 T. aloifolia, Lin., southeast and south. 

 T. Tucatafia. Eng., south. 

 T. Guatemalcnsis* Baker, south. 

 T. Treculiana, Carr., southwest. 

 T. baccata, Torr., southwest. 

 T. Sckottii, Eng., southwest. 



Clisto yucca. 

 T. brevifolia, Eng., southwest. 

 )'. gloriosa, Lin., southeast. 



Chcunoyucca. 

 T. rupicola, Scheele, southwest. 

 T. angustifolia, Pursh, west and southwest. 

 1'. jila7nentosa, Lin., southeast. 



Hesperoyucca. 



1'. Whipplei, Torr., southwest. 



