OP ARTS AND SCIENCES. 209 



spiraliter 3-4-seriatim imbricatis subcliartaccis (albidis nervo viridulo) 

 acutis inappeiuliculatis, extimis lato-lanceolalis brevibus, intimis line- 

 aribus ; corolliB lobis brevibus ovatis ; styli appemlicibus lineari-lance- 

 olatis parte stigmatifera loiigioribus ; acbeniis teretibus pluristriatis 

 hirsutulis pappo dimidio brevioribus. — S. E. California, in the Moliave 

 desert, at Lancaster station, Parry. A notable species, having the 

 very short corolla-lobes of the section Clirysothnmnopsis, along with the 

 involucre of the EiiOiamioidece division of tiie Aplodiscus section. 



BiGELOViA ALBIDA, Marcus Joues in berb. Chrysothomnus, 

 fruticosa, 2-3-pedalis, fastigiato-ramosa, snbglaber, glutinosa ; ramis 

 ad apicem usque (sajpius fasciculatim) foliosis ; foliis fere filiformibus 

 (poUicaribus) inucronatis ; capitulis cymoso-confertis semipoUicaribus 

 5-floris ; involucri bracteis lanceolatis subcoriaceis, exterioribus sursum 

 subfoliaceis subpatentibus in acumen aristellatum productis, intimis 

 papyraceis muticis ; corolla " alba ! " (ut videtur ochroleuca), lobis 

 linearibus ; antlierai appendicibus brevissirais obtusissimis ; styli appen- 

 dicibus lineari-filiformibus parte stigmatifera 2-3-plo longioribus ; 

 acheniis villosulis. — In alkaline soil, Wells, Nevada, Jl/a?'CT<5 ./ones, 

 August, 1881. 



Aster (Orthomeris) stenomeres. lanthe, A- scopulorum 

 (Diplopappus alpinus, Nutt.) proximus ; caulibus gracilibus subpedali- 

 bus ; foliis viridibus angusto-linearibus longioribus vix marginatis ; 

 involucre lato, bracteis parum biseriatis tenuioribus minus inajqualibus 

 linearibus, junioribus laxe pubescentibus ; ligulis ultra-semipollicari- 

 bus. — Rocky Mountains of Montana and Idaho, Burke, Watson ; 

 collected by the former many years ago, by the latter in 1881 at 

 Battle Camp. 



Aster (Orthomeris) Palmeri. A. spinoso aliquanto affinis, 

 caule frutescente capitulisque Feliciis Capensibus similis, glaber.; 

 ramis herbaceis e caule lignoso 4-pedali paniculato-ramosissimis Bac- 

 chai-idis modo striato-angulatis ; foliis integerrimis angustissime linea- 

 ribus leviter uniuerviis, ramulorum parvis obtusis ; capitulis panicu- 

 latis sparsis lin. 3 longis ; involucri campanulati bracteis imbricatis 

 erectis oblongis obtusis rigidulis, dorso versus apicem viiidulo, margi- 

 nibus scariosis ; receptaculo fimbrillis acheniis angustis subteretibus 

 hirsuto-sericeis dimidio brevioribus onusto; ligulis 8-10 brevibus 

 albis; fl. disci circiter 20. — S. Texas, at Corpus Cbristi Bay and on 

 the Rio Grande at Eagle Pass, September and December, 1879. 

 Palmer, no. 509, 516. This militates against the West Indian genus, 

 Gundlachica, of Proc. Am. Acad. xvi. 100. 



VOL. XVII. (n. 8. IX.) 14 



