546 PROCEEDINGS OF THE AMERICAN ACADEMY 



subspatliulatis; corollis aureis, marginalibus ampliatis ; pappo dupHci 

 e paleis 4 oblongis obtusissimis corolla (disci paullo, radii dimidio) 

 brevioribus et 4 alternantibus minimis ovalibus. — Lake County, near 

 Clear Lake, H. N. Bolander. A very distinct species, with Tan>y-like 

 leaves in a radical tuft, heads rather smaller than those of G. lanosa, 

 and bright yellow flowers ; it makes the third known species with a 

 short outer pappus. 



AcTiNOLEPis MULTiCAULis, DC, var. PAPPOSA : acheniis disci 

 etiam pappo donatis. — Prof. Brewer's specimens, from three stations, 

 all in Santa Barbara County, uniformly have a pappus to the disk, like 

 that of the ray flowers. This is the same in specimens otherwise 

 exactly resembling the plant on which the genus was founded, and in a 

 more woolly form, gathered in Santa Maria Valley, which however, 

 except in the pappus, would not be distinguished from Dr. Parry's 

 specimens, figured in the Botany of the Mexican Boundary Survey. 

 Actinolepis might accordingly be reduced to a section of Bahia : but 

 the reception of the external achenia into a concavity at the base of 

 the involucral scales may still enable us to keep the genus. 



AcHYROPAPPUS WoODHOUSEi : humilis, ramosissiraus, subviscoso- 

 puberulus ; foliis fere omnibus oppositis tripartitis, segmentis linearibus 

 obtusis integerrimis vel interraedio trilobo ; capitulis brevi-peduncula- 

 tis ; involucri squamis obovato-oblongis ; (floi'ibus albidis ?) ligulis par- 

 vis ; cor. disci tubo gracili ; pappi paleis 8-10 lanceolatis acutis 

 (alternis saepe brevioribus) nervo valido excurrente modo PalafoxicB 

 instructis. — New Mexico, Dr. Woodhouse, in herb. Durand. Ap- 

 parently only a span high ; the leaves all less than an inch long. Rays 

 linear-oblong, a line and a half in length, scarcely exceeding the disk. 

 Branches of the style tipped with a short and obtuse puberulent cone. 

 This kind of style and the opposite divided leaves prevent us from 

 referring the plant to Palafoxia, of which it has the pappus, nor will it 

 fall into Florestina. 



BuRRiELiA LEPTALEA : fere glabra ; caule vel ramis subradicalibus 

 1-3 capillaribus simplicissimis monocephalis ; foliis perpaucis filifor- 

 mibus parvis ; involucri squamis 4-5 ovalibus oblongisve ; hgulis 

 totidem exsertis at disco maxime elevato brevioribus ; achemis parce 

 hispidulis bi- (raro tri-) aristatis ; aristis flores adajquantibus inferne 

 sensim leviter dilatatis superne tenuissimo scaberrimo. — Santa Lucia 

 Mountains, on very dry hillsides along the Nacismento River. Allied 



