Rydbekg : Rocky Mountain flora 61 



Phymosia longisepala (Torr.) Rydb. 

 Sphaemkea longisepala Torr. Bot. Wilkes Exped. 255. 1874. 



LOASACEAE 



Nuttallia* humilis (A. Gray) Rydlx 



Mentzelia multiflora humilis A. Gray, PI. Wright i: 74. 1852. 

 Touterea humilis Rydb. Bull. Torrey Club 30: 277. 1903. 



Nuttallia integra (M. E. Jones) Rydb. 

 Mentzelia multiflora integra M. E. Jones, Proc. Calif. Acad. II. 5: 



689. 1895. 

 Touterea integra Rydb. Fl. Colo. 235. 1906. 



Nuttallia Rusbyi (Wooton) Rydb. 

 Mentzelia Rusbyi Wooton, Bull. Torrey Club 25: 261. 1898. 

 Touterea Rusbyi Rydb. Bull. Torrey Club 30: 276. 1903. 



Nuttallia lobata Rydb. sp. nov. 



Perennial with a thick root; stems strict, glabrous or nearly so, 

 white and shining, 3-4 dm. high; leaves 5-8 cm. long, 5-8 mm. 

 wide, narrowly oblanceolate, sinuately toothed or lobed with short 

 triangular lobes; sepals lanceolate, acuminate, 8-10 mm. long; 

 flowers diurnal, subtended by narrowly linear bracts; petals golden 

 yellow, spatulate, obtuse, 12-18 mm. long; petaloid staminodia 

 similar and almost as large; filaments numerous, the outer dilated; 

 capsule 15 mm. long, 8-9 mm. thick, acute, almost turbinate at the 

 base; seeds suborbicular, broadly winged. 



This species is related to N. multiflora (Nutt.) Greene and N. 

 pterosperma (Eastwood) Greene. It differs from the former in the 

 narrow merely toothed or lobed not pinnatifid leaves; from the 

 latter in the acute teeth or lobes of the leaves and the capsule, 

 which is acute not rounded at the base, and from both in the 

 glabrous stem. 



Utah: Near St. George, 1877, Palmer 172 (type, in herb. 

 Columbia Univ.); 1874, Parry jd; 1902, Goodding 776. 



Nuttallia acuminata Rydb. sp. nov. 



Stout biennial; stem 3-10 dm. high, straw-color, white in 

 age, rather dull, densely villous with barbed hairs; lower leaves 



*" NiUtallcB" Rafin. Am, Mo. Mag. (1818): 175. 1818; "Nuttallia", Greene. 

 Leaflets i: 209. 10 Ap. 1906. 



