Rydberg: Studies on the Rocky Mountain flora 465 



Swertia Fritillaria Rydb. 



Glabrous, light green, perennial; stem 1.5-3 dm. high; basal 

 leaves and lower stem-leaves alternate, 6-10 cm. long, thin, long- 

 petioled; blades obovate, spatulate, rounded at the apex, abruptly- 

 contracted into winged petioles of about the same length; middle 

 and upper stem-leaves all alternate or a single pair of opposite 

 ones, oblanceolate or oblong; inflorescence rather lax, elongate; 

 pedicels 1-2 cm. long; sepals lanceolate, about 6 mm. long; 

 corolla-lobes lanceolate, mostly acute, greenish white along the 

 midrib and azure along the margins, dotted all over with dark 

 blue spots in the manner of many species of Fritillaria; filaments 

 more or less dilated, some of them very broad; glands inconspicu- 

 ous with rather long blue fringes. 



Utah: Wet places incaynons: Big Cottonwood Canyon, Au- 

 gust 4, 1905, Garrett 1566 (type, in herb. N. Y. Bot. Card.). 



APOCYNACEAE 

 Amsonia Eastwoodiana Rydb. sp. nov. 



Perennial, with a short woody base; stem 3-5 dm. high, gla- 

 brous; stem-leaves lanceolate, usually narrowly so, 3-5 cm. long, 

 glabrous, acute at each end; leaves of the numerous strongly 

 ascending branches linear; calyx-lobes subulate, 2 mm. long or 

 longer; corolla 16-20 mm. long; tube narrowly trumpet-shaped; 

 lobes nearly 4 mm. long; pod 5-8 cm. long, about 8 mm. thick, 

 constricted and often breaking off between the seeds, 3-5-seeded; 

 seeds oblong, about i cm. long and 6 mm. thick. 



This is most closely related to A. brevifolia, having the same 

 flower and fruit, but the plant is in habit more like^. Fremontii, 

 for which it has been mistaken. The latter has still longer 

 calyx-lobes which are narrower, and its pod is not restricted 

 between the seeds. In canyons of desert regions. 



Utah: Moab, July, 1911, Rydberg & Garrett 8468 (fruit, type, 

 in herb, N. Y. Bot. Card.); Willow- Creek Canyon, August, 1895, 

 Alice Eastwood yj (fruit). 



Arizona: Ten miles east of Holbrook, June 22, 1901, L. F. 

 Ward (flowers); Lee's Ferry, 1890, M. E. Jones. 



Amsonia texana (A. Gray) Heller of the Flora of Colorado and 

 Coulter & Nelson's Manual is A. latifolia Jones. A. brevifolia 

 A. Gray, and A. tomentosa Torr. have been collected in southern 

 Utah. 



