LASTHENIA californica. 



Downy Lasthenia. 



SYNGENESIA POLYGAMIA SUPERFLUA. 



Nat. ord. Asterace.i; (Composite). 

 LASTHENIA.—Siiprd, voL2\,foL 1780. 



L. californica ; subpubescens ; foliis integerrimis, capitulis basi umbonatls. 



Supra I. c. 

 L. californica. De Cand. j)rodr. hied. 



This species differs from the one already published in the 

 present work in little except its smaller size, and differently 

 formed flower heads, w^hich are impressed at the base with 

 a cavity for the peduncle, and like the peduncles themselves 

 are slightly downy. 



It is an annual plant, flowering for about six weeks at 

 difl'erent periods of the year, according to the season at which 

 its seeds are sown. 



Professor De Candolle, in a manuscript list of the genera 

 of CompositaB, which we have just received from him, 

 includes it in his first series Tuhulifiorai, fourth tribe Senecio- 

 nidecB, fifth sub-tribe HcleniccB, first division Gaillardicco , 

 second sub-division Euheleniece, along witli Cephalophora 

 and Helenium, both of which are known in our gardens. 

 We observe that Professor De Candolle attributes the genus 

 to Cassini, but we have not succeeded in discovering it in any 

 of the writings of that most unmethodical of Botanists. 



* Sec folio 1780. 



