542 PROCEEDINGS OF THE AMERICAN ACADEMY 



rigidis uninerviis vel inferne obsolete trinerviis ; capitulis folioso-brac- 

 teatis ; involucre subturbinato 3 - 4-sei'iali, squamis coriaceis lanceo- 

 latis pi. m. resinosis et villoso-ciliatis, exterioribus folioso- vel subulato- 

 caudatis, intimis tenuioribus inappendiculatis ; floribus radii 3-4 ligula 

 oblonga exserta, disci 15-20; acheniis linearibus pubescentibus. — 

 On Mount Davidson, Nevada, H. G. Bloomer. Near Carson City, Dr. 

 C. L. Anderson, vi'ith a very narrow-leaved and more loosely corym- 

 bose-beaded foi'm. Leaves from one to barely 2 inches long. Heads 

 crowded, about half an inch long ; and the ligules 4 or 5 lines long. 

 Anthers and style exserted ; the short branches of the latter bearing 

 long subulate-filiform appendages, as in Linosyris section Chrysotham- 

 71US, Aplopappus section Ericameria, and in the following species, to 

 which it is nearly related. 



Aplopappus suffruticosus {Macronema suffruticosa, Nutt.) : 

 spithamasus e basi depresso-ramosa lignosa, glanduloso-puberulus, sub- 

 viscidus ; ramis usque ad apicem foliosis sajpissime monocephalis ; 

 foliis linearibus sen lineari-subspathulatis acutatis uninerviis ; involucre 

 folioso-bracteato fere hemisphserico, squamis tantum biseriatis requali- 

 bus laxis lineari-lanceolatis, extimis folioso-appendiculatis, intimis tenui- 

 oribus inappendiculatis, floribus radii 3 -8 ligulis discum subsuperan- 

 tibus, disci circa 30 ; acheniis linearibus pubescentibus. — Collected 

 by Prof. Brewer in the eastern part of the Sierra Nevada, on Pyramid 

 Peak, near Carson's Pass, alt. 8 - 10,000 feet. — This has no just claim 

 to a separate generic rank, but must be referred, with the preceding, 

 to Aplopappus. 



Aplopappus Macronema, Macronema dtscoidea, Nutt., of which 

 fine specimens were distributed in Hall and Harbour's Rocky Mountain 

 collection, is distinguished from the last by the arachnoid-woolly branches, 

 somewhat simpler involucre, and broader leaves, as well as by the ab- 

 sence of rays. The achenia are not glabrous, as described. 



Chrtsopsis (Ammodia) Brev^^eri : viscoso-subpubescens, laxe 

 paniculato-ramosa ; foliis oblongis seu ovato-lanceolatis membranaceis 

 basi lata tenuiter trinervi arete sessilibus ; capitulis (nunc nudis gracili- 

 ter pedunculatis nunc foliis 1-2 fulcratis) discoideis ; involucro quara 

 discus dimidio brevioribus, squamis lanceolatis acuminatis tenuibus ; 

 acheniis obovatis plano-compressis hirtellis ; pappo exteriori setuloso 

 satis copioso. — Near Sonora Pass and Ebbett's Pass, in the Sierra 

 Nevada, common at the elevation of 4,000 to 8,000 feet. — This is a 



