164 UNIVERSITY OF MISSOURI STUDIES [312 



268. TEAGIA L. NETTLE SPURGE. 



664. T. ramosa Torr. BRANCHING NETTLE SPURGE. 

 Dry soil and under rocks, 5100-6000 ft. (Daniels, 86). 

 MISSOURI to COLORADO; TEXAS to ARIZONA and MEXICO. 



269. CHAMAESYCE S. F. Gray. SPURGE. 



665. C. petaloidea (Engelm.) Small [Euphorbia petaloidea 

 Engelm.]. WHITE-FLOWERED SPURGE. 



Along the road and railroad in Boulder Canon, and in creek- 

 sands along Boulder creek, 5400-7000 ft. (Daniels, 775). Also 

 at Longmont (Rydberg). 



IOWA to WYOMING ; TEXAS to COLORADO. 



666. C. Fendleri (T. & G.) Small [Euphorbia Fendleri T. & 

 G.]. FENDLER'S SPURGE. 



Foot of Valmont Butte, near Owen's lake, 5300-5400 ft. 

 (Daniels, 666). 

 NEBRASKA to WYOMING ; TEXAS to ARIZONA. 



667. C. glyptosperma (Engelm.) Small [Euphorbia glyptosper- 

 ma Engelm.]. RIDGE-SEEDED SPURGE. 



Abundant in sandy places and along railroads, 5100-7000 

 (Sunset Canon) ft. (Daniels, 576). 

 ONTARIO to BRITISH COLUMBIA; TEXAS to MEXICO. 



668. C. nigulosa (Engelm.) Rydb. [Euphorbia serpyllifolia 

 rugulosa Engelm.] . RUGULOSE-SEEDED SPURGE. 



Mountains between Sunshine and Ward (Rydberg). 

 WYOMING and NEW MEXICO to CALIFORNIA. 



669. C. serpyllifolia (Pers.) Small [Euphorbia serpyllifolia 

 Pers.]. THYME-LEAVED SPURGE. 



Very common in waste places, along roadsides and rail- 

 roads, and on creek-sands, 5100-8000 ft. (Daniels, 420). Also 

 at Lyons (Rydberg). 



MICHIGAN to WASHINGTON; TEXAS to CALIFORNIA and 

 MEXICO. 



