540 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Calais macrochaeia Gray is founded upon immatiu'e specimens collected by Spalding on 

 the Clearwater, Idaho. They are undoulitedly young plants of C. Imearifolia, as the pap- 

 pus of that species shows just the transitions from young flowers to adult akenes needed 

 to connect the differences supposed to be specific. 



NOTHOCALAIS. 



1. Nothocalais troximoides (A. Gray) Greene, Bull. Cal. Acad. 2: 55. 1880. 



Microfteris troximoides A. Gray, Proc. Am. Acad. 9: 211. 1874. 



Nothocalais suksdorfii Greene, Bull. Cal. Acad. 2: 54. 1886. 



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

 Spalding. 



Range: Idaho and Washington to California. 



Specimens examined: Ellensburg, Piper 267H; Kincaid S4i; Ninth Ynkima, Mrs. Stein- 

 weg in 1894; Leckenhy, April 22, 1898; west Klickitat County, Suksdorf, April, May, 1880; 

 Klickitat County, Hoivell, June, 1879; Wenache, Whited 78, 1038; Rattlesnake Mountains, 

 Cotton 323; Sprague, Sandherg & Leiberg 147; Spangle, Piper 2438; Spokane, Henderson, 

 May 31, 1892; Hangman Creek, Sandherg d' Leiberg 38; Blue Mountains, Piper 2439; 

 Walla Walla region, Brandegee 929; Waitsburg, Horner 325; Mabton, Cotton 747; Prosserj 

 Cotton 585. 



Zonal distribution: Arid Transition. 



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

 too unstable. In the type specimen of troximoides the paleae 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. hptosepala. 



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; base of the pappus scales much 



shorter than the akene : 4. .S'. Jacin lata. 



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

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

 Leontodon borede DC. Prod. 7: 102. 1838. 



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

 Microseris borealis Schultz Bip. Pollichia 22-24: 310. 1866. 

 Type locality: Sitka. 

 Range: Alaska to California. 



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

 Tolrnie. 



Zonal distribution: Hudsonian. 



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

 Microseris leptosepala (Nutt.) A. Gray, Proc. Am. Acad. 9: 209. 1874. 

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

 Range: Washington to California in tlie coast region. 



Specimens examined: Falcon Valley, SufeZo// 147, 148, 149, June 26, 1886. 



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

 Microseris holanJeri 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. 



