328 IOWA ACADEMY OF SCIENCE Vol. XXVI, 1919 



Poaceae. 



Deschampsia bottiiica (Wahl.) Trin. At Mendenhall. 

 Poa triflora Gilib. At Petersburg. 

 Arctagrostis arundinacca Trin. At Mendenhall. 

 Arctagrostis macrophylla Nash. Panicidaria borcalis Nash. At 

 Petersburg and Mendenhall. 



Panicularia grandis (Wats.) Nash. At ]\Iendenhall. 

 Agropyron fcncrum Vasey. At Mendenhall. 

 Polypogon mouspcliensis (L.) Desf. At Sitka. 



Cyperaceae. 



Rynchospora alba (L.) Vahl. At Sitka. 

 Scirpus cccspitosus L. At Petersburg. 

 Scirpiis pauciflorus Light f. Skagway at 3,000 feet. 

 Eriophoriim gracUc Koch. At Petersburg near sea level, Skag- 

 way at 4,000 feet. 



Eriophorum angiistifoliuin Roth. At Mendenhall. 



Juncaceae. 



J uncus ricJiardsonianus Schult. At Mendenhall and Skagway. 

 Juncus sfygcus L. At Wrangell. 

 J uncus tenuis L. At Juneau. 

 Juncoidcs pipcri Coville. At Skagway. 



Iridaceae. 



Iris sctosa Pall. At Juneau and Haines. This is the species pre- 

 viously reported as L arctica Easlw. It is especially abundant in 

 marshy places at Haines. 



Orchidaceae. 



CorallorrJiica coralloyrhiza (L.) Karst. Occasional at Menden- 

 hall. 



LiinnorcJiis viridiflnra (Cham.) Rydb. Skagway at 4,000 feet. 



Betulaceae. 



Abuts tcnuifolia Nutt. At Aleudenhall and Haines. 

 Betiila alaskana Sarg. Occurs at Skagway. 



Polygonacese. 



Bisloiia ochrcosa Small. Collected at Mendenhall. 

 Polygonum neglectuni Besser. 



Polygonum ai'icuJarc L. These two species of Polygonum are 

 cunimon al Skagway. 



