SPECIES OF LAPPULA 539 
whence the type of &. diffusum came, viz., L. Hendersoni, L. 
arida and L. Californica. It is impossible to reconcile either of 
the first two with the original description of Z. diffusum, but it is 
possible that it may prove to be identical with Z. Californica. 
The following specimens have been examined. 
_ Britisn Cotumsia: Above Lake Louise, 27 July 1895, Candy; 
Kicking Horse Lake, 11 August 1890, Macoun ; Lake Louise, 9 
August 1898, /. R. Anderson; near Banff, 9 July 1891, Macoun, 676. 
WasHINGTON: Wenatchee Mts., 3 June 1900, Whited, 1258; 
Klickitat River, 27 June 1899, Fett, rorz,; without locality 
Vasey, 420; near Ellensburg, 21 May 1897, Piper, 2669; Blue 
Mts., 7 August 1897, Horner, 341 ; 11 June 1897, 727. 
Orecon: Near Snake River, 25 May 1898, Cusick, 1887 ; 
Stein’s Mts., 30 June 1898, Cusick; without locality, 1879, 
Cusick, 61g; Pine Creek, July 1893, Mrs. R. M. Austin, 121 ; 
Quartz Valley, Lake county, Mrs. R. M. Austin; Mt. Ashland, 
9 July 1886, Henderson ; Wallowa River below the Lake, 10 
August 1899, Cusick, 2323; Powder River Mts., August 1896, 
Piper, 2494. 
CaLiFoRNIA: Cottonwood Creek, White Mts., 13 July 1691, 
Coville and Funston, 1811; Siskiyou Mts., June 1884, Howell, 
219; Sisson, Siskiyou county, 7. &. Brown, 327; near Mineral 
Springs, Tulare county, 4 August 1891, Coville & Funston, 1484; 
Janesville, Lassen county, 29 June 1892, Brandegee. 
Ipano: Banks of Kootenai River, 1861, Lyadl. 
Urau: Thistle, 29 June 1894, I £. Jones, 5529; without 
locality, 1891, Mrs. W. C. Dodd. 
Montana: Spanish Basin, Gallatin county, 26 June 1897, 
Rydberg & Bessey, 4895 ; Bridger Mts., 12 June 1897, Rydberg 
& Bessey, 4896. 
Echinospermum subdecumbens Parry (Proc. Davenport Acad. 
I: 48) is probably a synonym of Z. diffusa ; at least an authentic 
Specimen in young flower in the Gray Herbarium seems to be 
referable here. The specimen is from central Utah. 
v 3. Lappula Hendersoni sp. nov. 
Perennial, erect, 60-80 cm. high, rather sparsely and softly pu- 
cent with appressed hairs, leafy to the top: leaves green, thin, the 
