OF ART3 AND SCIENCES: JUNE 11, 1867. 359 



receptaculo hemisphferico ; pappi paleis 6 - 8 e lanceolata vel subulata 

 sensim aristatis inferne rai'iter spinuloso-dentatis laciniatisve corollam 

 subiBquantibus achenio immaturo villoso subduplo longioribus. — 

 Plains of Mendocino, Sept. 1865, and (1866) from Shelter Cove on 

 the borders of Humboldt Co. down to the Albion River. Very com- 

 mon in moist open meadows and sphagnous swamps. The head with 

 the copious rays expanded is full three inches in diameter in the more 

 luxuriant specimens. — This, much the most showy species of the 

 genus, may well bear the name of the indefatigable discoverer.* 



AcTiNELLA CooPERt : bipedalis, laxe ramosa, puberula ; foliis 

 (superioribus) tripartitis segmentis anguste linearibus ; capitulis sub- 

 paniculatis breviter pedunculatis lis A. Richardsonii similibus etsi duplo 

 triplove majoribus ; pappi paleis 5 late ovatis muticis corolla viscoso- 

 pubente plus dimidio achenio paullo brevioribus. — On Providence 

 Mountain in the Mohave district, alt. 5,000 feet, May, June, Dr. J. G. 

 Cooper. Lower part of the plant not collected. Rays half an inch 

 long, 3-lobed at the apex. 



HuLSEA BREViFOLiA : viscoso-pubcsccns ; caulibus e radice gracili 

 adscendentibus sjepius ramosis (1 - 1^-pedalibus) ad apicem usque 

 ffiqualiter foliosis ; foliis oblongis lingulatisve ultra medium repando- 

 dentatis sessilibus, infimis basi attenuata spathulatis ; capitulis ramos 

 terminantibus minoribus ; involucri squamis linearibus obtusiusculis 

 biseriatis ; ligulis 10 - 12 luteis ; pappi paleis 2 dimidium tubi nudi- 

 usculi corollas adfequantibus, 2 alternis paullo brevioribus. — Mariposa 

 Big-tree Gi'ove, Bolander. Root perhaps only annual or biennial. Stem 

 and branches slender. Leaves thin, 1 - 1^, or some of the lower ones 

 2 inches long. Heads short-peduncled. Involucre half an inch long, 

 nearly equalling the disk, of about 20 scales. Rays small. Branches 

 of the style in the perfect flowers tipped with a very short blunt cone. 

 Achenia 3^ lines long, the villous hairs one half shorter than the con- 

 spicuous pappus. Mr. Bolander also collected, on Mount Dana, speci- 

 mens of the striking H. algida a foot in height, and in the Yosemite 

 Valley a single specimen of the following. 



HuLSEA HETEROCHROMA : viscoso-pubescens ; caule e radice gra- 

 cili erecto bipedali ad apicem usque a^quahter foliosis oligocephalis ; 



* Helenidm (HECUBiEA DC.) SCORZONER.EFOLIA, var. Ghiesbrechtii : 

 acheniis pappo minimo multipaleolato coronatis, paleolis latis truncato-obtusissimis 

 insiso-denticulatis. — Chiapas Ghiesbrecht. Except as to the pappus this seems to 

 be exactly De Candolle's Hecubcea. 



