SAXIFRAGACEAE. 175 



3. Leptasea austromontana (Wieg.) Small. {Saxifraga bronchioles Torr. ; 

 not L. ; 5'. austromontana Wieg.) On rocks and stony hills from Alb. and 

 B. C. to N. M. and Wash. — Alt. 6000-13,000 ft. — Red Mountain; Ouray; 

 Minnehaha; Mt. Garfield; Halfway House, Pike's Peak; Central City; West 

 Spanish Peak; Little Veta Mountain; Black Canon; Upper La Plata Caiion; 

 Como; Silver Plume; near Colorado Springs; Pagosa Peak; El Paso Co.; 

 Georgetown; near Denver; Andrew's Shetland ranch; Caribou; South 

 Boulder Peak; Massif de 1' Arapahoe; Palmer Lake; headwaters of Clear 

 Creek; Lake City; near Empire; west of Cameron Pass; Graymont; Ragged 

 Mountain, Gunnison Co.; Estes Park; Cameron Pass; mountains above 

 Ouray; Buffalo Pass; Pennock's mountain ranch; Devil's Causeway; Twin 

 Lakes; mountains between Sunshine and Ward; Anita Peak. 



4. Leptasea flagellaris (Willd.) Small. {Saxifraga flagellaris Willd.) On 

 alpine peaks, among rocks, from Greenl. and Alaska to Colo, and Ariz. — 

 Alt. 10,000-14,000 ft.— Red Mountain; summit of Pike's Peak; Mt. Abram, 

 Ouray; Cumberland Basin, La Plata Mountains; Mt. Harvard; Pike's Peak; 

 West Spanish Peak; Gray's Peak; headwaters of Clear Creek; Massif de 

 I'Arapahoe. 



Family 63. PARNASSIACEAE Dumort. Grass-of-Parnassus 



Family. 



I. PARNASSIA L. Grass of Parnassus. 



Petals fimbriate on the sides ; basal leaf-blades reniform. 



Petals obovate, 5-nerved ; staminodial scales with 5-9 lobes ; sepals elliptic. 



1. P. Hmhriata, 

 Petals oblong, 3-nerved ; staminodial scales 3-s-lobed ; sepals narrowly lanceolate. 



2. P. rivularis. 

 Petals not fimbricate; basal leaf-blades tapering at the base. 3. P. parviAora. 



1. Pamassia fimbriata Banks. On banks of streams and in springy places 

 from Alb. and Alaska to Colo, and Calif. — Alt. 9000-11,000 ft. — ^Twin Lakes; 

 North Park ; Ruby ; Ragged Mountain, Gunnison Co. ; near Pagosa Peak ; 

 Cameron Pass; Marshall Pass; Caribou. 



2. Parnassia rivularis Osterhout. Along mountain brooks in Colo. — North 

 Park, near Wyoming line. 



3. Pamassia parviflora DC. In wet places from Que. and Alaska to Colo, 

 and Utah. — Alt. 7000-8000 ft. — North Park; Gypsum Creek; canon. Eagle 

 Co. ; Pagosa Springs ; Wahatoya Creek ; Marshall Pass ; lola ; Parlin ; La 

 Veta; Lake Jolin, North Park; Buena Vista; Big Muddy, Gunnison Co. 



Family 64. HYDRANGEACEAE Uumort. Hydrangea Family. 



Stamens 15 or more; ovary inferior. i. Philadelphus. 



Stamens 8-10; ovary mostly superior. 



Hypanthium adnate to the base of the i-celled ovary or incompletely 3-7-celled 



capsule ; petals 5. 2. Edwinia. 



Hypanthium adnate for half its length to the 4-celled ovary and capsule ; petals 4. 



3. Fendlera. 



