540 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Calais macrochaeta Gray is founded upon immature specimens collected by Spalding on 

 the Clearwater, Idaho. Thoy are undoubtedly young plants of O. linearifolia, a.s tiio pap- 

 pus of that species shows just the transitions from j'oimg flowers to adult akenes needed 

 to connect the differences supposed to be specific. 



NOTHOCALAIS. 



1. Nothocalais troxiinoides (A. Gray) Greene, Bull. €al. Arnd. 2: ."y"). ISSO. 



Microseris trorimoide.o A. Gray, Proo. Am. Acad. 9: 211. 1874. 



Nothocalaix mJoidorfn Greene, Bull. Cal. Acad. 2: M. 1S.S6. 



Type localitti': "From the hills on the Clearwater River," Idaho. Collected by 

 Spalding. 



Range: Idaho and Washington to California. 



Specimens examined: Ellensburg, Pi/Mr 2678; ^incm'if 344; North Ynkima, il/rs. Stein- 

 weg in 1894; LecJcenby, April 22, 1898; west Klickitat County, Sulcxdorf, AprW, May, 1886; 

 Klickitat County, Howell, June, 1879; Wenache, Whifed 78, 1038; Rattlesnake Mountains, 

 Cotton 323; Sprague, Sandberg <fe Leiberg 147; Spangle, Piper 2438; Spokane, Tlenderson, 

 May 31, 1892; Hangman Creek, Sandberg cfe Leiberg 38; Blue Mountains, Piper 2439; 

 Walla Walla region, Brandegee 929; Waitsburg, Homer 325; Mabton, Cotton 747; Prossor, 

 Cotton !m. 



Zonal distribution: Arid Transition. 



The distinctions relied upon by Professor Greene to separate two supposed species seem 

 too unstable. In the type specimen of troximoideti the paleao are not "very unequal." 



SCORZONELLA. 



Leaves all basal, entire or nearly so 1. S. borealis. 



Leaves mostly dentate or lobed, one or more cauline. 



Pappus scales each attenuate into an awn-like tip 2. S. leptosepala. 



Pappus scales abruptly awned. 



Involucre 1 to 1.5 cm. high; base of the pappus scales as long 



as or longer than the akenes 3. S. bolanderi. 



Involucre 2 to 2.5 cm. high; ba.se of the pappus scales much 

 shorter than the akcne 4. S. laciniata. 



1. Scorzonella borealis Greene, Pittoriia 2: 19. 1889. 

 Apargia boreale Bong. Mem. Acad. St. Petersb. VI. 2: 146. 1832. 

 Leontodon boreale DC. Prod. 7: 102. 1&38. 



Apargidium boreale Torr. & Gr. Fl. 2: 474. 1843. 

 Microseris borealis Schultz Bip. Pollichia 22-24: 310. 1806. 

 Type locality: Sitka. 

 Range: Alaska to California. 



Specimens examined: Mount Rainier, Flett 281; Greene in 1889; without locality, 

 Tolmie. 

 Zonal distribution: Hudsonian. 



2. Scorzonella leptosepala Nutt. Trans. Am. Phil. Soc. 7: 426. 1841. 

 Microseris leptosepala (Nutt.) A. Gray, Proc. Am. Acad. 0: 209. 1874. 

 Type locality: "Near the outlet of the Wahlamot. " Collected by Nuttall. 

 Range: Washington to California in the coast region. 



Specimens examined: Falcon Valley, Suksdorf 147 , 148, 149, Juno 26, 1886. 



3. Scorzonella bolanderi (A. Gray) Greene, Bull. Cal. Acad. 2: 54. 1886. 

 Microseris bolanderi A. Gray, Proc. Am. Acad. 19: 64. 1883. 



Calais bolanderi A. Gray, Proc. Am. Acad. 7: 365. 1867. 



Type locality: Fort Bragg, Mendocino County, Cal. 



Range: Washington to California, near the coast. 



Specimens examined: Seattle, Mrs. Summers, a doubtful, immature specimen. 



