OP ARTS AND SCIENCES : FEBRUARY 13, 1872. 389 



246. Aster (Oritrophium) Sayi Nutt. herb. Near A. perigrinus, 

 Sibiricus, and scdsuginosus. 



247. Aster salsuginosus Richardson. An alpine form, scantily 

 collected with the next. 



248. Aster (Xylorhiza) alpigexus. Aplopappus ? alpigenus 

 Torr. & Gray, Fl. 2, p. 241. It appears from these copious and beau- 

 tiful specimens that the rays are violet-colored. The species is nearly 

 allied to A. Andersonii Gray; and, with A. pulchelhis of Eaton (just 

 published in the Botany of King's Exploration), we have now three 

 subscapigerous species of this group. 



249. Erigeron Bellidiastrum Nutt. 1. c. Not before reported 

 from Oregon. 



250. Erigeron glaucum Ker. Bot. Reg. 1. 10 ; Torr. & Gray, 1. c. 



251. Erigeron speciosuii DC. Stenactis speciosa Lindl. Bot. 

 Reg. t. 1577. 



252. Erigeron strigosum Muhl. ; Torr. & Gray, 1. c. 



253. Erigeron filifolium Nutt. ; Torr. & Gray, 1. c. 



254. Erigeron decumbens Nutt. ; Torr. & Gray, 1. c. A slender 

 form. 



255. Linostris viscldiflora Hook. ; Torr. & Gray, Fl. 2, p. 234. 



256. Aplopappus lanceolatus Torr. & Gray, 1. c. (at least it 

 is Homopappus midtijlorus Nutt.), var. stricta. Resembles Pyroco- 

 ma racemosa and panicidata, Torr. & Gray ; but achenia densely 

 silky-canescent and shorter. Stem slender, strict, leafy, bearing 3 to 

 10 rather distinct spicate heads. 



257. Aplopappus Hallii, n. sp. Puberulo-scaber, multicaulis; 

 caulibus (spithamaeis et ultra ad apicem usque foliosis ; foliis lanceo- 

 latis integerrimis apiculato-acuminatis rigidis, costa prominula ; capi- 

 tulis racemosis primum resinosis ; involucro obconico vix semipollicari, 

 squamis pluriseriali-imbricatis appressis lanceolatis acutis subglabris ; 

 ligulis 7 - 10-disco 10 - 12-floro vix longioribus ; acheniis pubescenti- 

 bus. — Specimens mostly too little developed : a species apparently 

 quite new, connecting Ericameria with Aplopappus proper. Bluffs 

 of Columbia River at the Dalles. 



258. Solidago Virgaurea L. var. humilis, connecting with the 

 var. alpina. 



259. Solidago elongata Nutt., var. 0. Torr. & Gray, Fl. 2, 

 p. 223. Evidently a low plant. 



260. Solidago gigantea Ait. Quite like the Eastern plant. 



