APPENDIX. 
Page 2, 67. Instead of P. gracilis, read P. Stelleri (S. G. 
Gmel.) Watt. 
Page 9, 127. Instead of D. aculeata Braunii read D. Braunii 
(Spenner) Underw. 
These changes are made to accord with the recently publish- 
ed “Illustrated Flora of the United States and Canada,” by Brit- 
ton and Brown. 
Page 9, 13 1 . Add: — Illustrated and described by Mr. G. E. 
Davenport in Garden and Forest, Dec. 2. 1896. 
Page 12. D. cristata x marginalis. As above in Garden and I 
Forest, Nov. 4, 1896. 
Page 28. Insert : 202. L alopecuroides L. Habit of L. 
inundatum ; sterile branches 2-10 in long, ramose, with many 
squarrose, bristly serrate, spinulescent teeth ; fertile stems 2 - 8 , 
rigid, erect, 2-10 in. high, bearing erect appressed leaves and sim- 
ple spikes; largest spikes 1 - 1 ^ in. long; spikes gradually reduced 
until the last one or two stems have none at all ; scales of spike 
erect-appressed, with rigid slender points and several bristle-tip- 
ped serratures at the sub-ovate base. 
Sandy swamp among cranberries, south end of Plum island, 
Ipswich, Mass To be expected in cranberry bogs on Cape Cod 
and along the shore of Long Island Sound. Early in Oct. 
V V 
Page 30, 214. For S. selaginoides, read S. selaginoides. 
V V 
Page 31, 217. For S. apus read S. apus. 
