Voi,. II.] SAXIFRAGE FAMILY. 



3. Parnassia Kotzebuei C. & S. Kotzebue's 

 Grass-of-Parnassus. (Fig. 1854.) 



Parnassia Kotzebtiei C. & S. Linnaea, i: 549. 1826. 



Scape slender, 3 / -y / high, leafless, or sometimes with a sin- 

 gle sessile oval leaf near the base. Basal leaves short-peti- 

 oled, membranous, ovate or oval, narrowed or sometimes 

 cordate at the base, 3 // -i2 // long; flower 4 // -5 // broad, calyx- 

 lobes oblong, equalling or slightly shorter than the elliptic 

 white 3~5-veined sessile petals; staminodia 3-5 at the base of 

 each petal, rather slender. 



Mt. Albert, Quebec; Labrador, arctic America to Alaska and in 

 the Canadian Rocky Mountains. Perhaps not distinct from P. 

 parviflora. Summer. 



4. Parnassia palustris I,. Marsh 

 or Northern Grass-of-Parnassus. 

 (Fig. 1855.) 



Parnassia palustris L. Sp. PI. 273. 1753. 



Scape slender, 3'-i2' high, bearing a 

 clasping ovate leaf below the middle, or 

 rarely leafless. Basal leaves sleuder-peti- 

 oled, ovate, obtuse at the apex, usually cor- 

 date at the base, <)"-i%" long; flower 6"- 

 i2 // broad; calyx ^-^ shorter than the 

 elliptic few-veined sessile petals; stamino- 

 dia 9-15 at the base of each petal, slender. 



In wet places, Newfoundland, Quebec and 

 Labrador to the Canadian Rocky Mountains 

 and Alaska, south to Minnesota, Michigan, 

 and in the Rocky Mountains to Wyoming. 

 Also in Europe and Asia. July-Sept. 



5. Parnassia parviflora DC. Small- 

 flowered Grass-of-Parnassus. 

 (Fig. 1856.) 



Parnassia parviflora DC. Prodr. i : 320. 1824. 



Scape 4 / -i2 / high, very slender, usually bearing 

 a clasping oval leaf at about the middle. Basal 

 leaves petioled, oval or ovate, narrowed at the base, 

 not cordate, 6"-i-z ff long; flower 4 / '-8 // broad; 

 sepals equalling or somewhat shorter than the 

 elliptic sessile petals; staminodia 5-7 at the base of 

 each petal, slender. 



In wet places, Quebec to Labrador and the Pacific 

 Coast, south to Minnesota, Michigan, and in the Rocky 

 Mountains to Wyoming. July-Sept. 



