PROCEEDINGS 



OF THE 



AMERICAN ACADEMY 



OF 



ARTS AND SCIENCES. 



VOL. XIX. 



MARINE BIOLOGICAL LABORATORY. 



Received /;^^^X;,./<i'' / T f d 



\/i 



Accession No. o T v^ 



Given by Jct^ .ij'or^ -^c^^ /?ri,x 



Place, 



:J: 



%*Ho book OP pamphlet is to be removed from the Uab- 

 OPatopy uiithout the permission of the Trustees. 



'tain 



XJdlJlJX tJtAUKJXU ^^ 



, bi- 

 bus) 

 reis ; 

 zona 



iu the plains near Cave Canon, Lemmon. The narrowest-leaved 

 forms referred to S. laxijlora (coll. Wislizenus, Schooner) notably 

 approach this. 



AsteroidecB. 



Aplopappus (Ericameria) monactis. Facie A. laridfolii, fru- 

 tex fastigiato-ramosissimus, 1-5-pedalis, vix resinosus ; foliis aceroso- 

 linearibus fere impunctatis ; capitulis corynaboso-cymosis paucifloris ; 

 involucro oblongo 8-10-phyllo ; bracteis chartaceis oblougis vel 

 sublanceolatis obtusis ; floribus hermaphroditis 5 vel 6, corollas lobis 

 ovato-oblongis, styli ramis latiusculis appendice subovata acuta super- 

 atis ; foemineo unico (interdum nullo), ligula elougato-oblonga ; 

 acheniis sericeo-villosis ; pappo albo molli. — Borders of the Mohave 



VOL. XIX. (N. S. XI.) 1 



