570 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Leaves broadly lanceolate ..........-..------------ 4. E. engelmanni. 
Leaves narrowly lanceolate ........---------------- 5. E. serrulatus. 
1. Eucephalus paucicapitatus (Robinson) Greene, Pittonia 3: 56. 1896. 
Aster paucicapitatus Robinson, Proc. Am. Acad. 29: 329. 1894. 
Aster engelmanni paucicapitatus Robinson, Proc. Am. Acad. 26: 176. 1891. 
Type Locatiry: Olympic Mountains, Washington. 
Rance: Olympic Mountains. 
SPECIMENS EXAMINED: Olympic Mountains, Piper 2195; Fett 819. 
ZONAL DISTRIBUTION: Hudsonian. 
2. Eucephalus ledophyllus (A. Gray) Greene, Pittonia 3: 55. 1896. 
Aster ledophyllus A. Gray, Proc. Am. Acad. 16: 98. 1880. 
Aster engelmanni ledophyllus A. Gray, Proc. Am. Acad. 8: 388. 1872. 
Type Locatity: “In the Cascade Mountains.” Collected by Lyall. 
Rance: British Columbia to Oregon in the Cascade Mountains. 
SPECIMENS EXAMINED: Mount Rainier, Piper 2147; Allen 284; Mount Adams, Henderson, 
August 5, 1892; Suksdorf 61. 
ZONAL DISTRIBUTION: Hudsonian. 
3. Eucephalus glaucophyllus nom. nov. 
Aster engelmanni glaucescens A. Gray, Syn. Fl. ed. 2. 17: 200. 1886, not Aster glaucescens 
Wender. 1882. 
Eucephalus glaucescens Greene, Pittonia 8: 56. 1896. 
Tyre Locatity: “On Mount Paddo” [Adams], Washington. Collected by Suksdorf. 
Rance: Washington to California. 
SPECIMENS EXAMINED: Mount Adams, Henderson, August 12, 1892; Suksdorf 651; 
Howell 401; Flett 1089; Simcoe Mountains, Howell, September 1880; Falcon Valley, Suks- 
dorf 398; Skamania County, Suksdorf, August 10, 1886. 
ZONAL. DISTRIBUTION: Hudsonian. 
4. Eucephalus engelmanni (A. Gray) Greene, Pittonia 3: 54. 1896. 
Aster engelmanni A. Gray, Syn. FI. 17: 199. 1884. 
Aster elegans engelmanni D. C. Eaton in S. Wats. Bot. King Explor. 144. 1871. 
Type Locatity: “Cascade Mountains, latitude 49°.’ Collected by Lyall. 
Rance: British Columbia to Utah and Wyoming. 
SPECIMENS 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 Pass, Lake & Hull 693; 
North Fork Bridge Creek, Elmer 649; without locality, Vasey 526; Mount Stuart, Sandberg 
& Leiberg 559; Clealum Lake, Cotton 869, Fort Simcoe, Cotton 1562. 
ZONAL DISTRIBUTION: Canadian and Hudsonian. 
5. Eucephalus serrulatus Greene, Pittonia 3: 55. 1896. 
Type Locatity: Mount Adams. Collected by Suksdorf (no. 1563). 
Known only from the type collection. The plant is exceedingly close to E. engelmanni. 
ASTER. 
Leaves coriaceous, serrate; involucre well imbricated. 
Involucre campanulate, glandular ..........--.--------------- 1. A. conspienus. 
Involucre broadly turbinate, not glandular .....2.........-.--- 2. A. radulinus. 
Leaves membranaceous. 
Involucre viscid or pruinose-glandular. 
Heads less than 1 em. broad ......-...-.----------------- 3. A. campestris. 
Heads over 1 cm. broad. 
Leaves entire, firm; bracts rather rigid, well imbricated. 4. A. integrifolius. 
