FArVeLL on the flora of DETROIT. 39 



FAMILY 8. CYPERACE.'E. Sedge Family. 



43. CYPERUS. Lin. 



117. diaiidius, Torr. Sandy slioves of Belle Isle. Rare. 

 US. rivulaiis, Kuntli. Sandy shoi'es of Belle Isle, etc. Common. 

 Hi), eseulcnlus, Lin., var. angustispicatius, Britt. Xear Palmer Park. Not 

 common. 



120. strigosus, Lin. Belle Isle, etc. Common. 



121. var. eapitatns, Boeckl. Near Palmer Park. Not common, 



122. var. robustior, Kunth. Belle Isle. Frequent. 



123. filiculmis, Valil. Near Linden Park. Rare. 



44. ELEOCHARIS, R. Br. Spike Rush. 



124. obtusa (Wilid.) Schultes. Shores of Belle Isle, etc. Connnon. 



125. palustris (L.) R. & S. Sandy shores on Belle Isle. Frequent. 



120. var. glaucescens (Willd.) A. Gr. Belle Isle and elsewhere. 



Connnon. 



127. acieularis (Lin.) R. & S. Shores of Belle Isle. Frequent. 



45. SCIRPUS, Lin. Bulrush. 



128. Americanus, Pers. Shores of Belle Isle. Common. 



129. lacustris, Lin. Shores of Belle Isle. Common. 



130. atrovirens, Muhl. Belle Isle and elsewhere. Common. 



131. var. pallidus, Britt. Vic. Linden Park. Common. 



46 ERIOPHORUM, Lin. Cotton Grass. 



132. lineatus (Mx.) Bth. & Hk. f. Belle Isle, etc. Common. 



133. cyperinum, Lin. Near Palmer Park. Frequent. 



134. ' var. atrocinctus (Fernald.) 



Scripus atrocinctus, P\nnald in Pro. Am. Aca. Arts & Sci., Vol. 34, No- 

 19, 502:1899. Similar to the var. Eriophorum (Mx.) Scirpus Erio- 

 phorum Mx. Fl. 1, 33:1803, but the sheaths of the involucral bracts, 

 the scales and the wool are from black to drab instead of rust- 

 colored. The species has all the spikelets sessile in glomerules ot 

 three or more and the sheaths of the involucral bracts intermediate 

 between those of the two varieties. The two varieties have the 

 spikelets clustered, but the lateral or outer ones are on more or less 

 elongated pedicels. 



47. RYNCHOSPORA, Vahl. Beaked rush. 



135. glomerata (Lin.) Vahl. Linden Park. Common. 



48. CAREX, Lin. Sedge; Swamp grass. 



136. intumescens, Rudge. In woods on Belle Isle. Common. 



137. Asa-Gray i, Bailej'. Low grassy grounds on Belle Isle. Frequent. 



138. gigantea, Rudge. Tr. Lin. Soc. 7. 99. pi. 10. 2:1804. Carex lupulina 



Muhl. var. pcduntulata Dew. Borders of woods on Belle Isle. Common. 



139. var. lupulina (Muhl.) Carex lupulina, Muhl.; Willd., Sp. PI. 



4, 206:1805. In woods on Belle Isle. Common. 



140. hystricina, Muhl., var. Cooleyi, Dew. Low grassy shores of Belle Isle. 



Rare. 



141. Pseudo-Cyperus, Lin., var. Americana. Hochst. Marshy grounds on 



Belle Isle. 



142. squarrosa, Lin. Woods near old race-course. Rare. 



143. typhinoides, Schwein. Vic. Linden Park. Rare. 



144. r'iparia, Curtis. Marshy grounds on Belle Isle. Frequent. 



145. lanuginosa, :Mx. Borders of canals on Belle Isle. Frequent. 



146. tiliformis, Lin. With the last but more common. 



147. fusca, All. Near Linden Park. Frequent. 



148. stricta, Lam. Shores of Belle Isle. Rare. 



149. Haydeni, Dewey. Shores of Belle Isle. Rare. 



150. gj'iiandra, Schw. Linden Park. Frequent. 



151. fiacca, Schreb. C. glauca Scop. Southern shores of Belle Isle. Rare. 



