652 PROCEEDINGS OF THE AMERICAN ACADEMY 



are firm coriaceous or cartilaginous in texture, at length inclined to 

 split into two valves ; 2, the acbenia are strongly gibbous, so that the 

 style, with its filiform corolla, is lateral : the pappus wholly wanting. 

 Consequently, — 



Stylocline Nutt., with straight or hardly oblique achenia having 

 a terminal areola (as in all Filaginece except Micropus), and with its 

 other good characters, is to be restored : it will well include Bentham's 

 section Diplocymbiurn and my Ancistrocarphus, thus constituting a 

 genus of at least four species, thus: — 



§ 1. ElISTYLOCLINE. S. GNAPHALIOIDES Nutt., S. MICROPOIDES 



Gray. 



§ 2. Diplocymbium. {Micropus sect. 3, Diplocymbiurn Benth.) 

 Flores foeminei biseriati ; paleis tenui-membranaceis extus lanosissi- 

 mis, apice scarioso mutico, iis circa flores steriles angustioribus minus 

 involutis. S. Griffithii, Gnaphalii sp. Griffith," Notul. 4, p. 240, 

 t. 468. Affghanistan, Griffith ; no. 3220, 3221, Kew. distrib. 



§3. Ancistrocarphus. Flores foeminei 5-10 uni— biseriati, paleis 

 cymbiformibus fere Diphcymbii (sed minus lanatis firmioribusque) 

 obvoluti, steriles paleis 5 majoribus ovato-lanceolatis subfoliaceis apertis 

 in cuspidem incurvam rigidam desinentibus persistentibus fructiferis 

 delapsis stellato-patentibus. — S. filaginea, Ancistrocarphus fila- 

 gineus Gray, Proc. Am. Acad. 7, p. 356. 



Psilocarphus Nutt. The most important thing to note is, that the 

 leaves, even from the base of the stem, are almost always opposite. P. 

 globiferus, i. e. the Chilian Micropus globiferus of Bertero (Bezanilla 

 Ghilensis Remy), as well as I can judge from a single specimen, is 

 distinguishable from the North American species by its less elongated 

 (narrowly elliptical-oblong) as well as smaller achenia. The northern 

 species seem to be reducible to two, P. Oreganus and P. tenellus. 

 Var. elatior of the former (Oregon, Hall, no. 271, Kellogg and Har- 

 ford, 418) is a remarkably luxuriant state, a span high, and erect. 



Filago Arizonica. Floccoso-lanata, a basi ramosissima, diffusa 

 (spithamaaa) ; ramis proliferis filiformibus ; foliis linearibus brevibus, 

 caulinis plerisque glomerulos terminales et alares involucrantibus ; 

 capitulis ovato-pentagonis ; floribus foemineis 10-15 epapposis, her- 

 maphroditis (sterilibus?) 5-10 papposis ; receptaculi angusti paleis 

 ovalis, fructiferis cymbiformibus dorso chartaceo lanosissimis, apice hya- 

 1 lino brevi obtuso, interioribus subplanis scarioso-hyalinis acutiusculis ; 

 acheniis laevibus. — Arizona, at Verde Mesa, Dr. Charles Smart, coll. 



