62 
IOWA ACADEMY OF SCIENCE You XXVII, 1920 
H. caespitosum Scribn. St. Eouis creek. Identified as H. jubatum. 
Blymus canadensis (E) Beauv. Denver; Manitou; Eookout Mountain. 
Dry mountain slopes. 
B. rohustus Scrib & Smith. On the plains near Denver. 
B. glaucus Buckley. Spruce creek near Fraser, 9,500 feet. Mountain 
slopes. 
B. triticoides Buckley. Lookout Mountain. 
Sitanion .elymoides Raf. Mount Byers, 9,000 feet; Specimen Mountain, 
12,900 feet. 
Cyperaceae 
Carex utriculata Boott. Mount Byers, timber line and alpine meadows. 
C. atrata L. Specimen Mountain, 12,000 feet, timber line and alpine 
grassy places. 
C. bella Bailey. Specimen Mountain, 11,500 feet. Open grassy places. 
C. nova Bailey. Milner Pass, 10,700 feet. Moist meadows. 
Juncaceae 
J uncus Drummondii E. Meyer. Specimen Mountain, 11,500' feet. Moist 
places. 
J. mertensianus Bong. Spruce creek; Camp Uray, Grand river. In 
dry soil. 
Luztila parviflora Ehrh. Milner Pass, 11,700 feet; Specimen Mountain, 
11.500 feet; Mount Byers, 12,000 feet; beaver bog on west fork of St. 
Louis creek. 
B. spicata (L) DC. Mount Byers, 12,000 feet. Dry open places near 
timber line. 
Liliaceae 
Calochortus Gunnisoni S. Wats. Specimen Mountain. Near timber line 
in open meadows. 
Melanthaceae 
Zygadenus elegans Pursh. West fork of St. Louis creek. Common in 
meadows and parks. 
Veratrmn speciosum Ryd. Beaver bog, west fork of St. Louis creek, 
9.500 to 10,500 feet. Moist, springy places in Engelmann spruce woods. 
Convallariaceae 
Streptopus amplexifolius (L) DC. Beaver bog, west fork of St. Louis 
creek. Common in springy places in spruce woods. 
Iridaceae 
Sisyrinchiuni occidentale Bicknell. In dry, open parks, 9,500 feet, west 
fork of St. Louis creek. 
Orchidaceae 
Cypripedium acaule L. Spruce creek. Rare in spruce woods. 
Limnorchis viridiflora (Cham.) Ryd. Mount Byers, 10,000 feet. Below 
timber lipie. 
Coeloglossum bracteatum (Willd.) Parlatore. Mount Byers, 12,000 feet; 
Golden. 
C orallorrhiza Vreelandii Ryd. Spruce woods along Spruce creek. 
C. multiflora Nutt. Mount Byers, 10,0(X) feet. Spruce woods and 
springy places. 
