78 NORTH AMERICAN FLORA [V01.UME 22 



1. Parnassia fimbriata Konig, Ann. Bot. 1 : 391. 1804. 



Rootstock short, ascending. Petioles of the basal leaves 5-15 cm. long ; blades reni- 

 form or broadly cordate, 2-4 cm. wide, thin, glabrous, with about 7 principal veins ; scape 

 2-3 dm. high ; bract cordate, more or less clasping, inserted at or above the middle of the 

 scape ; sepals 5-6 mm. long, elliptic or oval, obtuse, and often crenulate at the apex, with 

 about 5 principal nerves ; petals obovate, contracted below into a more or less distinct claw, 

 fimbriate on the margins, with about 5 principal veins; filaments filiform, 7-8 mm. long; 

 anthers ovoid ; staminodia united into 5 fleshy obovate scales with 5-9 short lobes ; capsule 

 1 cm. long or more, ellipsoid, 4-valved. 



Type locality : North-west coast of America, 



Distribution : In springy places in the mountains, Alberta to Colorado, northern California 

 and Alaska. 



Illustration: Hook. Bot. Misc. pi. 23. 



2. Parnassia rivularis G. E. Osterhout, sp. nov. 



Rootstock slender, erect. Petioles of the basal leaves 2-A- cm. long, slender ; blades 

 reniform or broadly cordate, thin, about 7-ribbed, 1-2 cm. wide ; scape slender, about 1 dm. 

 high ; bract 5 mm. long or less, ovate, sessile, borne above the middle of the scape ; sepals 

 narrowly lanceolate, acute, about 3 mm. long; petals oblong, about 6 mm. long, 3-veined, 

 contracted below and fimbriate-margined ; staminodial scales with usually 3, seldom 5, 

 short lobes ; filaments filiform, 4—5 mm. long ; capsule ovoid, 4-valved. 



North Park, Colorado, on the border of Wyoming {Osterhout 1778). 



3. Parnassia intermedia Rydb. sp. nov. 



Parnassia Jimbriata S. Wats. Bot. King's Exp. 97, in part. 1871. Not P. fimbriata Konig. 



Rootstock short and erect. Petioles of the basal leaves rather stout, 5-8 cm. long ; 

 blades broadly ovate to reniform, some subcordate at the base, 1.5-3 cm. wide, 1.5-4^ cm. 

 long ; scape 3-4 dm. high ; bract ovate, sessile, borne slightly above the middle of the 

 scape ; sepals elliptic, about 6 mm. long, 5-7-nerved ; petals about 1 cm. long, elliptic to 

 obovate, fimbriate-margined below, with about 5 principal veins ; filaments filiform-subu- 

 late, 6-7 mm. long ; staminodial scales with 7-9 filiform gland-tipped filaments about 2 

 mm. long ; capsule 4-valved, not seen fully mature. 



Type from East Humboldt Mountains, Nevada {S. Walton 370, in part). 

 Distribution : Nevada and Oregon. 



4. Parnassia cirrata Piper, Erythea 7 : 128. 1899. 



Parnassia fimbriata A. Gray, Bot. Calif. 1 : 202, in part. 1876. Not P. fimbriata Konig. 



Rootstock short, ascending. Petioles of the basal leaves 2-5 cm. long ; blades ovate 

 or lance-ovate, obtuse or acute, tapering at the base, 1-2 cm. long ; scape 2-4 dm. high ; 

 bract 5-10 mm. long, lance-ovate to lance-linear^ sepals oblong-lanceolate or lanceolate, 

 obtuse, about 7 mm. long ; petals oblong-obovate, 1 cm. long, fimbriate below with long 

 hairs ; staminodial scales with about 12 slender filiform filaments ; capsule ovoid, 1 cm. 

 long, 4-valved. 



Type locality : Mt. San Bernardino, Cahfornia. 



Distribution : In wet places in the mountains from the San Bernardino Mountains to the 

 Upper Sacramento. * 



5. Parnassia californica (A. Gray) Greene, Pittonia 2 : 102. 1890. 



Parnassia palusiris californica A. Gray, Bot. Calif. 1 : 202. 1876. 



Rootstock short, ascending. Petioles of basal leaves 2-6 cm. long ; blades broadly 

 ovate, cuneate at the base, 2-4 cm. long, with 5-7 principal veins ; scape 3-6 dm. high ; 

 bract small, ovate, 5-10 mm. long, sessile above the middle of the scape, or wanting ; sepals 

 oval to oblong, 4-6 mm. long, obtuse ; petals rounded-oval to suborbicular, 5-7-veined, 10- 

 15 mm. long ; staminodial scales with 15-24 capillary filaments ; filaments subulate, about 

 8 mm. long. 



Type locality : Wet places in the Sierra Nevada, California. 

 Distribution : Central California to southern Oregon. 



