OP ARTS AND SCIENCES. 299 



setiform or dissected squamellae between the small or minute paleic are 

 only hairs of the akene. And my Gyinnolomia encelioides proves to 

 be a more robust and less hoary form of the same species, with ampler 

 rays, the pappus in some flowers very manifest. 



Helianthus Oliveri. E grege //. Parishii et Californici, indu- 

 mento molli iusiguis, elatus, sat ramosus, foliosus, floribuiulus ; ramis 

 superne villoso-hirsutis vix scabris ; foliis utrinque pube moUissima 

 canescenti-tomentosis (subtus praesertim) alteruis lanceolatis acuminatis 

 fere integerrimis juxta basim acutiusculam triplinerviis brevipetiolatis ; 

 involucri bracteis lineari-subulatis laxis albo-villosis ; pappi paleis e 

 basi lata subulatis. — Coast of California, Cienega, between Los 

 Angeles and Santa Monica, Ji G. Oliver; received from J". C. Nevin, 

 1884. It is said to attain a height of ten or twelve feet, and its soft 

 and rather villous than tomentose pubescence is remarkable. 



Verbesina DissiTA. Ilerbacea, fere glabra et bcvis ; caule elato 

 tereti prorsus aptero ; foliis oppositis, caulinis (imis ignotis) internodiis 

 valde brevioribus ovatis serratis basi angusta sessilibus tenui-mem- 

 branaceis subtripliiiervibus venosis ; capitulis in pedunculo subpanicu- 

 latis (semipoUicaribus); involucro multifloro cinereo-puberulo, bracteis 

 pauciusculis lineari-lanceolatis acutis disco brevioribus ; ligulis paucis 

 neutris ; acheniis cum alls latis obovatis fere glabris, aristis basi aliE 

 coalitis. — Near All Saints' Bay, Lower California, Sept. 1884, 

 C. R. Orcutt. — This is the only known species of the Pterophjton 

 section in any pait of California, except the allied V. venosa, Greene 

 (in Proc. Am. Acad. six. 13). It is of the naked-stemmed group, 

 apparently a* full yard high, and with the pairs of leaves remote. 



Chcenaclls siiffrutescens, which was founded on Lemmon's plant 

 from the northern part of California, was in the Synoptical Flora, i.''^ 

 341, confounded with a related species from the southern borders of 

 the State, and the proper habitat was unreasonably discredited. 

 Both are suffrutescent-pereunial : they may be distinguished as 

 follows. 



Ch.enactis suffrutescens. Gray. Tomentoso-incana ; ramis e 

 caule decumbente lignoso erectis simplicissimis apice nudo mono- 

 cephalis ; foliis pinnatipartitis, lobis angusto-linearibus integerrimis ; 

 capitulo fere pollicem alto; pappi paleis 10 semper oblongo-liugulatis. 

 — Proc. Am, Acad. xvi. 100, & Syn. Fl. 1. c. pro parte. — Sandwashes 

 of the Upper Sacramento, California, near Mount Shasta, Lemmon 

 1879. 



CiiiENACTis Parishii. Canescens ; caulibus basi suffrutescentibus 

 parce ramosis oligocephalis ; foliis pinnatipartitis, lobis linearibus 



