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. Gard.). 



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 1 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 likevl. 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, 191 1, Rydberg & Garrett 8468 (fruit, type, 

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

 Alice Eastivood 73 (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. 



