Phytologia (A ug 2004) 86(2) 7 5 



TWO NEW SPECIES OF WEDELIA (ASTERACEAE: 



HELIANTHEAE), WITH A CONSPECTUS OF THE GENUS 



FOR MEXICO 



B. L. Turner 



Plant Resources Center 



University of Texas 



Austin, TX, 78712-0471, USA 



ABSTRACT 



Two new species of Wedelia are described from Mexico: W. elottiana 

 from the state of Jalisco, and W. juxtlahuacana from the state of Oaxaca. 

 Additionally, a new combination, Wedelia xylopoda (Greenm.) B. L. 

 Turner is proposed. A conspectus of the 27 species currently recognized 

 for Mexico is presented, along with a key to the taxa. 



KEY WORDS: Asteraceae, Wedelia, Mexico, Jalisco, Oaxaca. 



As noted below, Strother (1991) provided a taxonomic account of 

 Wedelia for North America. Turner (1992a,b) subsequently provided 

 an assessment of the Mexican species, this in connection with his 

 forthcoming treatment of the Heliantheae of Mexico (cf. Comps of 

 Mexico 5: Eupatorieae, Phytologia Memoirs 11. 1997). The following 

 account of Wedelia will acquaint the interested reader with this 

 formidable enterprise. Both of the new taxa are described and keyed in 

 this treatment, and will appear as such in the final product, except for a 

 shortening of their descriptive accounts. Additionally, all of the taxa will 

 be mapped, much as for taxa of the tribe Eupatorieae, as alluded to in 

 the foregoing. 



