PLANTS OF THE ARAPAHOE FOREST 
69 
Onagraceae 
Gayophytum rammissimum T. & G. West fork of St. Louis creek; 
common in burnt-over areas. 
Chamaenerion angustifolium (L) Scop. {Bpilohium spicatum Pursh) 
Camp Uray on Grand river; Specimen Mountain, 12,900 feet; Mount 
Byers, 9000 feet; common in burnt-over areas. 
Bpilohium adenocaulon Hausk. Spruce creek; Mount Byers; in bogs 
and springy places. 
Gaum coccinea Pursh. Manitou; common on dry mountain slopes. 
Umb'Clliferae 
Osmorrhiza obtusa (C. & R.) Fernald. In spruce woods along the west 
fork of St. Louis creek. 
Daucus carota L. Golden; naturalized along irrigation ditches. 
Conium maculatum L. Golden; naturalized and abundant; said to have 
been introduced about 1907. 
Angelica pinnata Wats. Beaver bog on the west fork of St. Louis 
creek. 
A. Lyallii Wats. Specimen Mountain, 11,500 feet. 
Ligusticum Porteri C. & R. Camp Uray on Grand river, 11,000 feet; 
Lookout Mountain, Arapahoe national forest; east fork of St. Louis 
creek. 
Pseudo cypmopteris montana Hook. West fork of St. Louis creek, 
9,000 feet. 
Heracleum lanatum L. Beaver bog on the west fork of St. Louis creek, 
and in springy places. 
Pyrolaceae 
Pyrola secunda L. Springy places in spruce woods along the west 
fork of St. Louis creek. 
P. chlorantha Sw. Beaver bog on west fork of St. Louis creek; 
Mount Byers, 10,500 feet. 
Pterospera andrqmeda Nutt. Mount Byers; common on slopes in pine 
and spruce woods. 
Ericaceae 
Arctostaphylos uva-ursi L. Spruce creek; Lookout Mountain; common 
in pine woods. 
Vaccinium oreophyllum Ryd. Milner Pass, 10,700 feet. 
V. caespitosum Michx. West fork of St. Louis creek; common on 
slopes and in pine woods. 
Primulaceae 
Primula Parryi Gray. Milner Pass, 10,700 feet; moist, springy places 
and on edge of snow banks. 
Androsace septentrionaUs L. Camp Uray on Grand River; Milner 
Pass, 11,700 feet; Mount Byers; common in burnt-over woods. 
Gentianaceae 
Gentiana plebeja Cham. Specimen Mountain, 11,000 feet, 
G. plebeja Holmii Wetts. Milner Pass, 11,700 feet. 
G. elegans A. Nels, Specimen Mountain, 11,000 feet. 
G. Andrewsii Griseb. Lower slope of Mount Byers; apparently this 
species. 
