49 



Tar. erecta, "Watson. The two forms are certainly different enough, 

 bnt Mr. AA'^atson assnres me they may be connected. 

 Sarcobatus vermiculatus, Torr. San Luis Talley. Common there 

 and known as ^^chico." (205^ 2GC.) 



amaraxtace.t:. 



Amaranths ketroflexus, L. Twin Lakes. August. (27L) 



A. ALBUS, L- Valley of the Upper Arkansas Eiver. September, (275,) 



PAEONYCniE^E. 



Paronychia pulvinatAj Gray. South Park, at 12-13,000 feet. (4G.) 



POLYGONACE.E. 



[Names furnished by Mr. Sereno Watson, Cambridge.] 



Eriogonum U3r b ell ATUiVr, Torr. South Park. Common, (24.) 

 E. Wrightii, Torr. Yalley of the Upper Arkansas Eiver. (22.) 

 E. PLAVUM, Nutt., van Valley of the Upper Arkansas River. (25.) 

 E. FLAYUM, Nutt. South Park. Twin Lakes. (26, 28.) 

 E. rAuciFLORUM, Pursh. Sulphur Spring, South Park, Colorado Ter- 

 ritory. (27.) 

 E, CERNUU3r, Nutt. Twin Lakes. (23.) 

 E. ALATL^r, Torr. (806.) 

 OXYKIA DIGYNA, Campd. South Park. (42.) 

 EuivrEX LONGiFOLiiTS, DC. Twin Lakes, Saguache. (29, 30.) 

 R. SALiciFOLius, Weinm. San Luis Valley. (31.) 

 R. MARiTEVius, L. San Luis Valley. September. (32.) 

 Polygonum ayiculare, L. Twin Lakes. San Luis Valley. (34, 35, 



41.) 

 P. EEECTUM, L. Valley of the Upper Arkansas River. (39.) 



P. EVIBRICATU3I, IJfutt. South Park. (36.) 



P. amphibium:, L. Common, 



P. AQXJATICUM, Gray. (38.) 



P. Pennsylyanicum, L. San Luis Valley. (40.) 



P. YIYTPARU3I, L. South Park. (43.) 

 P. BiSTORTA, L. South Park. (44.) 



ELEAGXACEiE. 



Shepherdia Canadensis, Xutt. Georgetown. (58.) 

 Eleagnus argentea, Pursh. Twin Lakes, at 9,500 feet. 



LOEAXTHACE.E. 



Arceuthobium A3iERicANU3r, Kutt. Kear Breekenridge, at 10-11,000 

 feet on Finm contorta. 



EUrHORBIACE.E. 



Euphorbia Montana, Engelm. (85.) 



E. serpyllifolia, Pers. San Luis Valley on alkaline soil. (SG, 87.) 



4b 



