OF ARTS AND SCIENCES : JANUARY 26, 1870. 181 



segraentis oblongo-ovatis acutiusculis suba?qualibus extus parce hirsutis. 

 Oxytheca glandulosa, Nutt. PL Gamb. p. 170. — " Rocky Mountains 

 of Upper California," according to Nuttall ; an impossible habitat. 

 Dr. Gambell probably collected it in New Mexico. Involucre and 

 flowers half a line, the divaricate pedicels two or three lines long. . 



* * Panicula cum pedunculo et involucris (iis pedicellisque raro mi- 

 nutissime glandulosis) laevissima. 



-i— Effuso-ramosissima floribunda ; pedicellis rigidis nunc subrace- 

 moso-secundis mox deflexis. Involucra pluriflora, circa lineam 

 longa. Perigonium glaberrimum. Achenium rostro plus minus 

 scabro. Annua ; sp. prima etiam Virgatis approximanda. 



61. E. deflexum, Toit. in Ives Colorado Exped. Bot. p. 24. Sub- 

 validum ; foliis omnibus radicalibus orbiculatis subcordatis floccoso- 

 lanatis (majoribus sesquipollicaribus) longe petiolatis ; paniculre nunc 

 ultrapedalis ramis rigidis junceis srepius divaricatis ; pedicellis brevis- 

 simis saltern involucro brevi-campanulato vel hemisphrerico breviori- 

 bus ; bracteolis (extimis lato-linearibus, intimis filiformi-spathulatis) 

 barbato ciliatis ; perigonii albi basi obtusissimi segmentis exterioribus 

 orbiculatis basi cordatis, interioribus minimis obovatis retusis multoties 

 minoribus. — S. E. California, on the Colorado, &c, Schott, New- 

 berry, Cooper. In sand, in a canon of the Wasatch Mountains, Utah, 

 S. Watson, in Clarence King's Expedition. Tucson, S. Arizona, Dr. 

 Palmer: a form with the smaller involucres shorter than the pedicel. 

 Involucre a line long and about as broad, rather many-flowered, the 

 five teeth broad and rounded. Exterior segments of the perigonium 

 becoming a line in length and breadth, the inner segments hardly longer 

 than the ovary. 



62. E. nutans, n. sp. Tenellum ; folds omnibus radicalibus rotun- 

 dis floccoso-lanatis longe vel breve petiolatis ; panicula efFusa ; pedi- 

 cellis nutantibus cum involucro late campanulato 2-3-plo breviori 

 minutissime viscoso-glandulosis ; bracteolis filiformibus creberrime 

 glandulosis; perigonii late rosei basi obtusissimi segmentis exterioribus 

 late ovalibus emarginatis (fere obcordatis), interioribus oblongis retusis 

 paullo brevioribus plus dimidio minoribus demum conduplicatis. — Ne- 

 vada : canon at the eastern base of the Sierra Nevada, Lieut. Beck- 

 with ; passed over in Pacif. R. R. 2, p. 129, as E. cernuum. Canon 

 in W. Humboldt Mountains and Unionville Valley, S. Watson in C. 

 King's Expedition. The specimens at most are barely a span high ; 



