PYROLACEAE. 259 



3 . PYROLA L. WlNTERGREEN. 



Flowers with a lo-lobed hypogynous disk; stigma peltate, s-lobed; petals with a 



pair of tubercles at the base. i. P. secunda. 



Flowers without hypogynous disk and petals without tubercles. 



Style straight and short ; stigma peltate ; stamens equally connivent around 



the pistil. 2. P. minor. 



Style and stamens declined ; stigma much narrower than the concave apex of 



the style, which forms a collar or ring. 

 Leaves not mottled. 



Petals pink or purplish. 



Leaf-blades round-reniform. 3. P. asarifolia. 



Leaf-blades orbicular or round-ovate. 4. P. uliginosa. 



Petals white or greenish. 5. P. chlorantha. 



Leaves mottled. 6. P. picta. 



1. Pyrola secunda L. In damp woods from Lab. and Alaska to D. C. and 

 Calif. Alt. 6000-12,000 ft. Grand Lake; Mt. Abram, Ouray; Echo Canon; 

 Box Canon, west of Ouray; Pagosa Peak; Steamboat Springs, Routt Co.; 

 Mt. Harvard; Cheyenne Mountain; Beaver Creek; mountains between Sun- 

 shine and Ward; Fish Creek Falls. 



2. Pyrola minor L. In woods from Greenl. and Alaska to Conn, and 

 Calif. Alt. 8000-12,000 ft. Headwaters of Clear Creek; Grand Lake; Mar- 

 shall Pass; chaparral-covered hills southeast of Ouray; Artist's Glen, near 

 Pike's Peak; Silver Plume; La Plata Canon; Cameron Pass; Graymont; 

 Beaver Creek. 



3. Pyrola asarifolia Michx. In damp woods from N. B. and Alb. to N. Y. 

 and Colo. Alt. 9000-12,000 ft. West Spanish Peak; Graymont. 



4. Pyrola uliginosa Torr. (P. rotundifolia uliginosa A. Gray) In wet 

 rich woods and swampy places from N. S. and B. C. to N. Y., Colo, and 

 Calif. Alt. 7000-12,000 ft. Headwaters of Clear Creek; South Boulder Peak; 

 Grand Lake; Marshall Pass; Ouray; Berthoud Pass, near Cozzens; Keblar 

 Pass ; Steamboat Springs ; Beaver Creek. 



5. Pyrola chlorantha Swartz. In woods from Lab. and B. C. to D. C., Colo, 

 and Calif.; also in Europe. Alt. 9000-12,000 ft. Marshall Pass; Hamor's 

 Lake, north of Durango; 4 miles west of Cameron Pass; Cheyenne Moun- 

 tains; Front Range, Larimer Co.; Gore Pass; swamp above Beaver Creek. 



6. Pyrola picta Smith. In woods from Ida. and Wash, to Colo., Ariz, and 

 Calif. Alt. 8000-9000 ft. Canons and adjoining meadows west of Ouray. 



Family 103. ERICACEAE DC. HEATH FAMILY. 



Fruit more or less fleshy or surrounded by a fleshy calyx or hypanthium ; plants 



prostrate, evergreen ; corolla without sacs. 



Fruit a berry or drupe, not enclosed in the calyx. i. ARCTOSTAPHYLOS. 

 Fruit a loculicidal capsule, enclosed in the accrescent fleshy calyx and 



hypanthium. 2. GAULTHERIA. 

 Fruit dry, a septicidal capsule ; erect bog-shrubs. 



Corolla saucer-shaped with 10 sacs for the anthers. 3. KALMIA. 



Corolla campanulate without sacs. 4. PHYLLODOCE. 



i. ARCTOSTAPHYLOS Adans. BEAR-BERRY, KINNIKINIC. 



i. Arcostaphylos uva-ursi (L.) Spreng. In woods, on hillsides and sandy 

 soil from Lab. and Alaska to N. J., Colo, and Ore. Alt. 5000-10,000 ft. 



