80 CATALOG OF PLANTS. 



130. Elymus canadensis L. Nodding wild rye. — Common on sand on 



the lake shore and on sand dunes. A fair sand binder against 

 the action of mnd. 



131. Elymus striatus Willd. Slender wild rye. — Occasional in dry 



shaded places at Sand Point. 



132. Hystrix patula Moench. Bottle-brush grass. — Frequent in damp 



woods. 



133. Cyperus rivularis Kunth. Shining cyperus.^In damp sand on 



lake shore east of Caseville. 



134. Cyperus strigosus L. Straw-colored cyperus. — Occasional in 



damp open places near Rush Lake and Port Austin. 



135. Cyperus houghtonii Torr. Houghton's cyperus. — Frequent on 



sandy ground and sand dunes. 



136. Cyperus filicuhnis Vahl. Slender cyperus. — In sandy ground 



throughout the sand dune district. 



137. Dulichium arundinaceum (L.) Britton. Dulichium. — Frequent 



in wet swampy places between sand dunes. 



138. Eleocharis olivacea Torr. Bright green spike-rush. ^ — "Lake 



shore." Davis. 



139. EUocharis obtusa (Willd.) Schultes. Ovoid spike-rush. — Wet 



places about Rush Lake. "Common along shore of Lake." 

 Davis. 



140. Eleocharis palustris (L.) R. and vS. Creeping spike-rush. — 



Common in wet marshy ground and on damp sand. 



141. Eleocharis palustris glaucescens (Willd.) Gray. Creeping vspike- 



rush. — Frequent in wet shaded places. 



142. Eleocharis acicularis (L.) R. and S. Needle spike-rush. — Wet 



ground edge of Rush Lake and near Port Austin. "Very 

 abundant along the lake shore." Davis. 



143. Eleocharis tenuis (Willd.) Schultes. Slender spike-rush. — In 



marshy places and on damp sand along the lake shore. 



144. Eleocharis acuminata (Muhl.) Nees. Flat-stemmed spike- 



rush. — In wet places, often on wet sand near the lake shore. 



145. Scirpus pauciflorus Lightf. Few-flowered club-rush. — Shore of 



Rush Lake and at Bayport. "Forming large masses on the 

 marshy belt left by the retreat of the lake near Port Austin." 

 Davis. 



146. Scirpus subterminalis Torr. Water club-rush. — Plentiful in 



edge of ponds enclosed by sand dunes east of Caseville. 



147. Scirpus debilis Pursh. Weak-stalked club-rush. — Abundant in 



Rush Lake. 



148. Scirpus americanus Pers. Three-square. — Found in wet places 



generally. \er\ common in wet places along the lake 

 shore. 



