xiv THE CAYUGA FLORA. 



Ranunculus Cymbalaria 



Chenopodium rubrum, [Blitutn maritimum) 



Juncus Gerardi 



Zannichellia palustris 



Scirpus maritimus 



Panicuni proliferum 



I)i])lachne fascicularis, (Lcptochloa) 



Atriplex hastata, (with very red steins.) 



We only need to find Ruppia in Salt Creek, and Salicornia and 

 Triglochin maritimum to make our saline list equal to that of Onon- 

 daga Lake, as given by Clinton. 



2. Cayuga Lake Shore. — The most characteristic plants of the lake 

 cliffs extend only into the lower sections of the ravines at or near the 

 head of the lake. A few are found fringing the rocks of the Neguse- 

 na and White Church valleys. Among the former are Shcphcrdia. 

 Symphoricarpus racemosus, var. panciflorus, Neillia, Myosotis verna 

 and Salix longifolia. On the low sandy points on the lake shore, 

 particularly on the limestone is found /uncus alpinus, var. insignis, 

 while near by may be found Astragalus Canadensis, A. Cooperi, 

 Vicia Americana, Lathyrus palustris and its var. myrtifolius, Aster 

 Tradescenti and Polygonum lapathifolium. A group of introduced 

 shore plants is interesting. It includes Lythrum Salicaria, Scleran- 

 t/ius annuus, Linaria Elatine, Bidens bipinnata, Scabiosa auslralis. 

 Lactuca Scariola and Polygonum nodosum, the latter possibly native. 



3. Cayuga L. its Inlets aud Outlet : The aquatics of the lake are 

 unusually luxuriant, aud the forms perhaps more than ordinarily num- 

 erous. Those not found elsewhere in the Flora are Myriophylluni 

 verticillatum, M. heterophyllum, Naias marina and its varieties 

 gracilis and recurvata. The Potamogetons are especially luxuriant 

 and abundant. 



3. The Alluvial Flood-plains and Creek-bottoms. — These are the 

 most sheltered spots in our whole Flora. The principal one is the 

 Ithaca plain audits characteristic region is Negundo Woods, in aspect 

 a bit of western river-bottom woods. Small ones occur at the mouths 

 of ravines along the lake and even within the ravines. The soil is 

 usually deep, rich aud productive though sometimes gravelly. A few 

 very rare plants belong to these levels, amoug them the more south- 

 ern species of Chczrophyllum, Box Flder, the Kentucky Coffee-Tree ; 

 also Ariscema Dracontium and Echinocystis are found here. The 

 Hackberry, the Downy and the Green Ash, the Bur Oak and Silver 

 Maple, A In us serrulata, Staphylea, Mertensia Virginica are charac- 

 teristic of the long deep groove of the Cayuga Lake and Neguaena 

 valleys but in rare cases they stray out of it. Here also are found all 

 our willows — species and hybrids, excepting Salix myrtilloides, al- 

 though they are not all confined to the alluvial tracts ; indeed no 

 genus of plants so predominates in the valley excepting some of the 

 Graminctr. 



5. Ravines. — These, a unique feature of our region, often bring 

 together the plants of deep swampy woods, those of the alluvial bot- 

 toms, those of the exposed cliffs of the lake, those of the cold wet 



