155 



The following list of plants can be considered as extending 

 the p:)ublished distribution of the species. They are recorded 

 from Louisiana for the first time unless otherwise noted, or they 

 have been included because of some feature that makes their oc- 

 currence noteworthy. All specimens mentioned are in the Lou- 

 isiana State University Herbarium. 



Soliva sessilis R. & P. 



This species is reported in the North American Flora for 

 Mississippi and California (?) as an adventive from South Ameri- 

 ca. Its abundance is such that it can be classed as a plant that is 

 thoroughly naturalized. In many places it forms a mat of such 

 an extent that it gives the impression of a closely clipped lawn. 

 Represented by the following collections : Baton Rouge, Brown 

 932 ; East Baton Rouge Parish, Stewart's Swamp, Brown 1872. 



In Small's flora (9) the genus Soliva is represented by only 

 one species, S. nastiirtiifolia (Juss.) DC. which has been trans- 

 ferred to the genus Gymnostyles (12). The genus Gymnostyles 

 is represented in Louisiana by G. anthemifolia A. Juss. and G. 

 nastiirtiifolia A. Juss., both of which have been reported from 

 Louisiana and which I find very abundant as weeds particularly 

 in the streets of New Orleans and Baton Rouge as well as other 

 parts of the state. 



Verbena rigida Spreng. Syst. Veg. 4, pt. 2, 230, 1827. 

 V. venosa Gills & Hook. Bot. Misc. 1, 167, 1830. 



Small (9) reports this species as V. venosa from around Hous- 

 ton, Texas, as naturalized from South America, and describes 

 the plant as an annual. Our plant fits the description in Small's 

 flora very w^ell with the exception that the plant is perennial, 

 and has a long branching rhizome from which many plants arise. 



9. Small, J. K. "Flora of Southeastern United States." 1913. 

 12. "North American Flora." 



Mohr (7) whose synonomy I have followed states that the plant 

 is an .escape from cultivation and is naturalized in the Gulf coast 

 states and south Texas. Mohr also states the plant is a peren- 

 nial. This plant is common in many places and forms dense 

 patches which are conspicuous along roadsides due to the bril- 

 liant color of the blossoms. It is represented by the following 

 collections: Baton Rouge, Peterson , 1909; Covington, Peterson, 

 1909; Baton Rouge, E. A. Bessey, 1909; Kleinpeter, j5rou'w 1054. 



