TORREYA 



February, 1914. 

 Vol. 14 No. 2 



TWO ADDITIONS TO THE FLORA OF LOUISIANA 



By Paul C. Standley* 



Recently two plants were sent for determination to the U. S. 

 National Herbarium by Mr. E. C. Wurzlow, of Houma, Louis- 

 iana. Upon attempting to name them it was found that neither 

 was included in Small's Flora of the Southeastern United States, 

 although, from what Mr. Wurzlow writes concerning them, both 

 deserve a place in any flora of Louisiana, being well established 

 and so large and showy as to be at once noticed by any botanical 

 collector. One of them, a member of the Acanthaceae, was sent 

 for identification to Dr. G. Lindau, of Berlin, well known as an 

 authority upon this group, who reports that it is the plant 

 described from Mexico by Nees as Cryphiacanthiis angustifolius . 

 Since both plants received from Mr. Wurzlow are of considerable 

 interest it seems desirable to make some permanent record of 

 them. The data given below concerning distribution and growth 

 in Louisiana are from copious notes kindly furnished by the 

 collector. 



RuELLiA SPECTABiLis Britton 

 Cryphiacanthiis angtistifolius Nees in DC. Prodr. 11 : 199. 1847, 



not Ruellia angustifolia Sw. 1788. 

 Ruellia Tweediana Hemsl. Biol. Centr. Amer. Bot. 2: 508. 



1882, not Griseb. 

 Ruellia spectabilis Britton, Ann. N. Y. Acad. Sci. 7: 192. 1893. 



Nees based his description upon two specimens, the first from 

 Jalapa, Mexico, collected by Galeotti, the second from Entre 

 Rios, Argentina, collected by Tweedie. Grisebach, finding 

 that the two collections represented distinct species, named the 



* Published by permission ot the Secretary of the Smithsonian Institution 

 [No. I, Vol. 14 of ToRREYA, Comprising pp. 1-20, was issued 27 January, 1914.] 



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