Vol. XXVI, pp. 195-196 October 23, 1913 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



A NEW DODECATHEON FROM NEW MEXICO. 



BY PAUL C. STANDLEY. 

 [Published by permission of the Secretary of the Smithsonian Institution.] 



Iii a collection of plants from the Sandia Mountains of New 

 Mexico, received recently from Miss Charlotte C. Ellis, is a 

 specimen of what appears to be an undescribed species of 

 Dodecatheon. Heretofore only a single member of this genus 

 has been known from the State, D. radicatum Greene, the type 

 of which was collected by Fendler in the mountains east of 

 Santa Fe. 



Miss Ellis has been an enthusiastic student of the New 

 Mexican flora for several years and has collected a number of 

 species either new or not previously reported from the State. 

 Primula ellisiae, one of the most beautiful primroses of the 

 Rocky Mountains, was described by Pollard and Cockerell* 

 from specimens of her collection in the Sandia Mountains, as 

 well as Achillea laxiflora, a most distinct species, known from 

 only two collections. 



Dodecatheon ellisiae Standley, sp. nov. 



Perennial from a stout caudex about 7 mm. long; leaves few, the 

 petioles 12 to 17 mm. long, dilated at the base; leaf-blades oblong to 

 oblong-ovate, about 30 mm. long, l(i to 22 mm. wide, rounded at the 

 apex, truncate or subcordate at the base, thin, glabrous, bright green, 

 the margins undulate; scapes slender, 10 to 12 cm. high; bracts lance- 

 oblong, 2.5 mm. long; flowers 2 to each scape (in the specimens exam- 

 ined) ; pedicels S to 27 mm. long ; calyx 4 mm. long, the tube campanu- 

 late, the lobes short, triangular to broadly ovate, acute or acuminate; 

 petals oblong, 8 to 10 mm. Jong, rounded at the apex, white, purple at 

 the base; stamen tube obsolete; anthers 6 or 7 mm. long, purple, the 



*Proc. Biol. Soc. Washington 15: 178. 1902. 



50— Proc. Biol. Soc. Wash., Vol. X XVI. 191.:. (195) 



-. 



