258 
AMMIACEAE. 
27. LEPTOTAENIA Nutt. 
Fruit 8-12 mm. long, usually without oil-tubes; leaves finely dissected into linear 
divisions. 1. L. multifid a. 
Fruit 15-18 mm. long, with oil-tubes; leaves less dissected into oblong divisions. 
2. L. Eatoni. 
1. Leptotaenia multifida Nutt. In rich soil from Alb. and Wash, to Colo, 
and Calif.—Near Dix Post Office; Durango; Glenwood Springs; Baldwin; 
Spicer. 
2. Leptotaenia Eatoni C. & R. In rich soil from Wyo. and Ida. to Utah 
and Colo.—Alt. 7000-8000 ft.—Los Pinos; Cerro Summit; Minturn. 
Order 39. ERICALES. 
Gynoecium superior ; fruit usually capsular. 
Herbaceous saprophytes without green leaves. 101. 
Herbs or shrubs with green leaves. 
Corolla of essentially distinct petals; herbs with rootstocks. 
102. 
Corolla of more or less united petals; shrubs. 103. 
Gynoecium inferior; fruit baccate or drupaceous. 104. 
Monotropaceae. 
Pyrolaceae. 
Ericaceae. 
Vacciniaceae. 
Family 101. MONOTROPACEAE Lindl. Indian-pipe Family. 
1. PTEROSPORA Nutt. Pine Drop, Giant Bird’s-nest. 
1. Pterospora andromedea Nutt. In rich woods from Que. and B. C. to 
Pa., Ariz. and Calif.—Alt. 4000-8000 ft.—Bosworth’s ranch, Stove Prairie; 
mountains, Larimer Co. 
Family 102. PYROLACEAE Agardh. Wintergreen Family. 
Plants leafy-stemmed; flowers corymbose; style very short and covered by the 
peltate stigma; filament dilated and hairy at the middle. 1. Chimaphila. 
Plants scapiferous with a basal rosette of leaves; flowers racemose or solitary; 
style evident; filaments subulate, naked. 
Flowers solitary; petals spreading; valves of the capsule not cob-webby on the 
edges. 2. Moneses. 
Flowers racemose; petals more or less converging, concave; valves of the 
capsule cob-webby on the edges when opening. 3. Pyrola. 
1. CHIMAPHILA Pursh. Pipsissewa. 
1. Chimaphila umbellata (L.) Nutt. In woods from N. S. and Alaska 
to Ga. and Calif.—Alt. 8000-11,000 ft.—Estes Peak, Larimer Co.; North and 
South Boulder Peak; Bierstadt Lake; Beaver Creek. 
2. MONESES Salisb. One-flowered Wintergreen. 
1. Moneses uniflora (L.) S. F. Gray. In wet woods from Lab. and Alaska 
to Pa., Colo, and Ore.—Alt. 9000-12,000 ft.—Silverton; Marshall Pass; Front 
Range, Larimer Co.; Ruby; Caribou; Steamboat Springs; camp on Little 
Beaver Creek; Berthoud Pass. 
