130 PITTONIA. 



PTILOEIA. 



Eafinesqiie, Atl. Jonrn. 145 (1832). Sleplianomeria, Nutt. 

 Trans. Am. Phil. Soc. vii. 427 (1841). 



1. P. PAUCIFLOEA, Kaf. 1. c. (1832). Frenanfhes ? panci- 

 flora, Torr. Ann. Lye. N. Y. ii. 210 (1828). Stephanomcria 

 runcinala, Nutt. I.e. (1841), in part? From Nebraska to 

 Texas, and westward to the Rocky Monntaius, and perhaps 

 beyond them, into Utali, Nevada, ete. Named Prenanfhes 

 runcinata by Dr. James in 1825, but without description ; 

 and Nuttall's employment of this specific name appears to 

 have been made without any reference to Dr. James' use of 

 it, and his pLant may be different, obtained as it was from a 

 point to the westward of the Eocky Mountains. 



2. P. TENUiFOLiA, Raf. 1. c. (1832). Prenanihes ? icnui- 

 folia, Torr^l c. (1828). Lygodesmia minor, Hook. Fl. Bor.- 

 Am. i. 205. t. 103 a (1833). StcpJianomeria minor, Nutt. 

 Trans. Am. Phil. Soc. vii. 427 (1841). A species of our 

 northern borders only, as I judge ; well marked in habit, the 

 herbaceous stems being slender, reedy and flexible, usually 

 bearing but few heads, and well clothed with long slender 

 almost grassy leaves. None of the more southerly plants 

 commonly referred to it share these peculiarities. 



3. P. MYRiocLADA. Stcpliauomevia wyriodada, Eaton, 

 Bot. King Exp. 198. t. 20. Desert regions of the interior of 

 Nevada. 



4. P. Weightii. Stephwiomeria WrightH, Gray, Proc. 

 Am. Acad. xix. 62 (1SS3). Western Texas; perhaps extend- 

 ing to In ew Mexico and Arizona. 



^n^i'i y^^^-^^-^' ^i(^P^i(''>tomeria virgatu, Benth. Bot. Sulph. 

 . (1844). The herbage of this common species of the Call- 



