570 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Leaves broadly lanceolate : . 4. E. engehnanni. 



Leaves narrowly lanceolate 5. E. serrulaius. 



1. Eucephalus paucicapitatus (^ Robinson) Greene, Pittonia 3: 56. 1896. 

 Aster paucimpitatus Robinson, Proc., Am. Acad. 29: 329. 1894. 



' Aster engehnanni jxiucicapitatits Robinson, Proc. Am. Acad. 26: 176. 1891. 

 Type ixx^ality: Olympic Mountains, Wjj^hington. 

 Range: Olympic Mountains. 



Speci-Mens examined: Olympic Mountains, Piper 2195; Flett 819. 

 Zonal distribution: Iludsonian. 



2. Bucephalus ledophyllus (A. Gray) Greene, Pittonia 3: 55. 1896. 

 Aster ledophiiUus A. Gray, Proc. Am. Acad. 16: 98. 1880. 



Aster emielmanni ledophijUns A. Gray, Proc. Am. Acad. 8: 388. 1872. 

 T^PE uh'ai.ity: " In the Ca.scade Mountains." Collected 1)V Ly all. 

 Range: British Columbia ti> Oregon in the Ca.scade Mountains. 



Specimen-s EXA.MINED: Mouut Rainier, P»7'fr2147; .<4//en284; Mount Adams, //flnrfcrson, 

 Aupist 5, 1892; Suksdorf^X. 



ZoNAi, nisTRint'Tiox: Iludsonian. 



3. Bucephalus glaucophyllus nom. nov. 



Astfr engelmanni glaucescem A. Gniy, Syn. Fl. ed. 2. 1^: 200. 1886, not Aster glaitcescens 

 Wender. 1832. 



Eucephalus glaitcescens Greene, Pittonia 3: 56. 1896. 



Type locality: "On Mount Paddo" [Adams], VVasliinpton. Collected by Suksdorf. 



Range: Wa.shington to California. 



Specimens examined: Mount Adams, Henderson, Aupjust 12, 1892; Suksdorf 651; 

 Flou^ell 401 : Flett 1089; vSimccM" Mountains, Howell, Scptembt^r 1880; Falcon Valley, Suks- 

 dorf 3^; Skamania County, Suksdorf, August 10, 1886. 



Zonal DLSTiuniTioN: Iludsonian. 



4. Bucephalus engeltuanni (A. Gray) Greene, Pittonia 3: 54. 1896. 

 Aster engehnanni A. Gray, Syn. Fl. 1^: 19?). 1884. 



Aster elegans engelmanni D. C. Eaton in S. Wats. Bot. King Explor. 144. 1871. 



Type ijocxuty: "Cascade .Mountains, latitude 49°." Collected by Lyall. 



Range: British Columbia to Utah and Wyoming. 



Speclmen.s examined: Cascade Mountains, latitude 49°, Lyall: Colville to Cascade 

 Mountains, latitude 49^, Lyall in 1860; head of Twisp River, Whited 39; Atanum River, 

 Henderson, August 2, 1892; Stehekin, Whited 1401; near Skagit Pa.ss, Lake cfc Hull 693; 

 North Fork Bridge Creek, Elmer 649; without locality, Vasey 526; Mount Stuart, Sandherg 

 <k Leiberg 559; Clcalum Lake, Cotton 869, Fort Simcoe, Cotton 1562. 



Zonal distribution: Canadian and Hudsonian. 



5. Eucephalus serrulatus Greene, Pittonia 3: 55. 1896. 



Type locality: Mount Adams. Collected by Suksdorf (no. 1563). 



Known only from the type collection. The plant is exceedingly close to E. engelmanni. 



ASTBR. 



Leaves coriaceous, serrate; involucre well imbricated. 



Involucre campanulate, glandular ^ 1. A. conspicuus. 



Involucre broadly turbinate, not glandular 2. A. radulinus. 



Leaves membranaceous. 



Involucre viscid or pruinose-glandular. 



Heads less than 1 cm . broad .' . 3. A. campestris. 



Heads over 1 cm. broad. 



Leaves entire, firm; bracts rather rigid, well imbricated. 4. A. integrif alius. 



