; 



BOTAXY. 



89 



( 



It 



U 



V. 





SiMSiA (GEEiEA) CANESCENS, Graijy PL Feudl. p. 85. Sand hills near Fort Yuma, California, 



January ; Scliott, A 



striking 



species 



with a rcraarliably white-woolly involucre and large 



showy rays. A less hairy form with laciniate leaves was gathered on the Gila hy Dr. Parry, 

 SiMSiA (Ger^.a^ sed eradiata) frutescenSj (sp. nov.): hispidulo-scaherrima, ramosissima; foliis 



parvis (|-J-pollicaribus) oblongis seu 



ellipticis utrinque ohtusis integerrimiSj petiolo nudo ; 

 capitulis longiuscule pedunculatis ramulos teraiinantibus discoideis ; involucri squamis exterio- 

 ribus lanceolatis ovatisve acuminatis subsquarrosis albo-hirtis, interioribus obovatis obtusis ] 



w 



acheniis margine cum aristis brevibus (interdum fere obsoletis) longissime villosissirals. Agua 

 CalieutCj on the Gila ; Colonel Emorij^ November 28j 1846. Sierra Prieta, near Fort Yuma, 

 E. California, December, 1854 ; Scliott. Also gathered (with rather large heads) by Colonel 

 Fremont, in 1849, somewhere in the interior country of California. Fragments of this plant, 

 too poor to characterize, have been known for some years in a small collection made by Colonel 

 Emory in his earliest exploration of the Gila country. There are now good materials at hand. 

 It appears that the plant must be associated with another from the same region, upon which I 



formerly proposed to found a genus under the name of Germa^ but afterwards {PI. Fcndl. I. c) 

 concluded to append to Simsia. The present species is remarkably distinguished, however, by 

 its woody or sufFruticose, slender stems, (apparently belonging to a low and much branched 

 bushy plantj) and by the total absence of the rays, which are remarkably large in its congener. 

 Very likely the genus Ger^^ea (placed between Simsia and Encelia) should be re-established for 

 these two species ; but for the present they may be appended to Sirasiaj although new dis- 

 coveries may more probably approximate them to Encelia. The heads vary from a quarter to 

 half an inch in diameter. The awns of the pappus are often as long as the much elongated 

 and dense fringe of soft white hairs which surround the otherwise glabrous achenium, but always 

 covered with similar long hairs. Sometimes they are almost obsolete, or reduced to a slender 

 base for the insertion of the tuft of hairs. 



Simsia (Gerjea) scaposa, Gray^ PI. Wright. I. c. Stony hills between theJMimbres and the 



Eio Grande, New Mexico ; Wright. 



Simsia exakistatAj Gray^ PL Wright. 2, p. 87. On the San Pedro, &c., Sonora ; gathered 



by all the collectors. 



Simsia (BAnRAxiiA) calva, Gray^ PL Lindh. 2, p. 228, Throughout southern and western 



Texas ; *^ common on dry and stony hill-sides of the chalk and oolite ;" Schott. 



ViGUiERA CORDIFOLIA, Gray^ PL Wright, l^p. lOT, (k 2,^. 89» Common in New Mexico and 

 northern Sonora and Chihuahua ; gathered by all the collectors. 



ViGUiERA LAXA, DC; Gray^ I. c. Cobre, &c,, New Mexico; Wright. 



4 



ViGUiERA laci:n'IAta, (sp. nov.): frutescens, hispidulo-scabra; foliis plerisque alternis subcon- 

 fertis petiolatis hastato-lanceolatis incisis seu laciniato-pinnatifidis subtus grosse reticulatis 

 rigidis, summis parvis bracteiformibue ; capitulis geminis ternisve breviter pedunculatis ; invo- 

 lucri 2-3-serialis squamis ovato-oblongis vix appendiculatis ; receptaculo planiusculo ; ligulis 

 integerrimis ; acheniis subciliatis aristis paleseformibus 2 et squamellis latis apice eroso-dentatis 

 6 — 8 coronatis. — Eancho Gamacha, east of San Diego, California, September, 1855 ; Schott. A 

 remarkable species, apparently a low and more or less shrubby plant, with slender branches. 



including the petiole, thin but rigid, very scabrous, the coarse 

 teeth, or lobes, ovate or triangular, blunt. Heads nearly half an inch long ; rays nearly of the 

 same length. Sq[uamello3 pf the pappus thick, Pale^ of the receptacle acutish. 



12 k 



Leaves about 1^ inch long. 





i^ 



