108 Muhlenbergia, Volume 9 
RHYNCHOSPORA ALBA (L.) Vahl. White beak rush. 
Whatcom county, Suksdorf. 
CAREX ARCTA Boott. Sedge. 
Frequent in the foothills. 
CAREX FLAVA RECTEROSTRATA Bailey 
Lake Padden, Suksdorf 1017. 
CAREX LAEVICULMIS Meinsch. 
Infrequent. 
CAREX LENTICULARIS Michx. 
Sumas Prairie, Zya//, in 1858. 
CAREX LEPTALEA Wahl. 
Common in low ground. 
CAREX PAUCIFLORA Lightf. 
Common in peat bogs. 
Five carices as yet undetermined have been collected in the 
county, one at Panghorn lake, one on Mt. Baker, two on Look- 
out mountain and one at Green lake. 
ARACEAE 
LYSICHITON CAMTSCHATCENSE (L,.) Schott. Skunk cabbage. 
Very abundant in low, wet ground. 
L.EMNACEAE 
LEMNA TRISULCA L. Duckweed. 
Common, floating on lakes and ponds. 
JUNCACEAE 
JUNCUS BALTICUS Willd. Baltic rush. 
Very common along margins of ponds. 
Juncus EFFUSUS L. Hummock rush. 
Frequent in low ground. 
JUNCUS BUFONIUS L,. ‘Toad rush. 
Abundant in dried up ponds and ditches. 
JuNcuUS COVILLEI Piper 
Frequent in wet ground. 
JUNCUS ENSIFOLIUS Wiks. Sword rush. 
Very common in wet ground and along ditches. 
