OF ARTS AND SCIENCES : JUNE 11, 1867. 355 



ato-acuminatis fere glabris ; receptaculi alveolis in dentes subulatos 

 productis ; acheniis sericeo-pubescentibus. — Mono Pass, at 9 - 10,000 

 feet of elevation, Bolander. — In aspect and foliage (except that the 

 leaves are more lanceolate and acute or acuminate), this much resem- 

 bles Aplopappus Macronema, Gray (Macronema discoidea, Nutt.) 

 which is one of the many links connecting Aplopappus and Linosyris ; 

 but it is a near relative of L. Parryi, and a genuine Chrysothamniis. 

 The narrow and much crowded heads are about three fourths of an 

 inch in length. 



CoNYZA. CouLTERi ( (7. suhdecurrens. Gray, PI. Fendl. p. 78, & 

 PI. Wright. 1, p. 102, non DC.) : molliter viscoso-pubescens ; caule 

 ramisque strictis ad apicem usque foliosis ; foliis adnato-sessilibus 

 lineari-oblongis vel inferioribus spathulatis plei'isque pinnatifido-denta- 

 tis incisisve ; panicula conferta virgata ; capitulis parvis (sesquilineam 

 longis) ; involucro disco breviore, squamis hirto-viscosis linearibus 

 acutis. — This is Coulter's No. 285 and 286, and has recently been col- 

 lected near Fort Mohave by Dr. Cooper. It is quite different from the 

 Mexican Conyza or Erigeron suhdecurrens, which I now possess from 

 Di-. Schultz. The pistillate flowers have no ligule, and the hermaphro- 

 dite flowers are only 5 - 7 ; so that, although the pappus is not copious, 

 the plant is better placed in Conyza. 



Franseria eriocentra: fruticosa; foliis oblanceolatis vel spathu- 

 latis ssepius sinuato vel inciso-dentatis cinereis, junioribus ramulisque 

 villosulis ; involucris fructiferis fusiformibus unilocularibus monosper- 

 mis cum aculeis longis validis longe lanatis. — East slope of Provi- 

 dence Mountain, Arizona, May, 1861, Dr. J. G. Cooper. In fruit 

 only ; the male flowers not seen. Apparently a low shrub. Spines 

 of the involucre 2 lines long, larger than the diameter of the cell, 

 thickly clothed with long white wool. 



ANCISTROCARPHUS, Nov. Gen. 



Capitulum pluriflorum, heterogamum ; floribus omnibus tubulosis, 

 singulis palea receptaculi suff'ultis ; exterioribus 5-10 foemineis in re- 

 ceptaculo breviter cylindrico 1 - 2-seriatis, corolla filiformi ; centralibus 

 5 masculis, corolla 4-dentata. Invohicrum proeter paleas flores invol- 

 ventes nullum. Palete subcoriaceie, ovatos, acuminata^, fl. foem. saccatae, 

 apiceque breviter scarioso-appendiculat^ modo Psilocarphi, achenium 

 obovato-fusiforme vix obcompressum includentes cum eo tardius de- 

 ciduae ; steril. 5 majores flores longius superantes, concava^ vel sub- 



