56 Thirty-fourth Annual Report of the 



occur in Lower Saranac lake. In this lake arejalso P. amplij 

 P. Glaytonii, P. gramineus, P. hybrideus, P. compressas, P. perfolia- 

 tus and P. natans. In the inlet between this lake and Round lake, P. 

 amplifolius, P. Glaytonii and P. gramineus v. lieterophyllus abound in 

 a luxuriant growth. Pond-weeds, water-lilies and aquatic plants gene- 

 rally are more abundant in and near the inlets of the lakes of this re- 

 gion than in other parts of the waters. Probably the sediment brought 

 down by the streams and accumulating in the parts of the lakes adja- 

 cent to their inlets affords a soil especially favorable to the production 

 and support of water-plants. 



Trillium erectum v. declinatum, Gr. Long Island. Coles. Some 

 of the flowers are white, others are variously tinged with pink. In one 

 specimen two flowering stems grew from the same rootstock. 



Lilium Philadelphicum, L. This commonly has but one or two 

 flowers on a stem, but in rare instances as many as five flowers occur. 



Oarex flava, L. A large form with three or four fertile spikes and 

 the staminate spike, nearly all fertile, was collected at Millerton. The 

 numerous large fertile spikes give the plant an unusual appearance. 

 Sometimes the lowest spike is compound. 



Oarex triceps, Mx. A form with oblong spikes. Mt. Defiance. 



Carex gynandra, Schtu. Not rare in the Adirondack region, but 

 passing into G. crinita by such insensible gradations that it is difficult 

 to keep them separate. 



Oarex scoparia, SchJc. Of this species we have three forms. In one, 

 the spikes are arranged in a somewhat racemose manner. This is 

 usually found in dry, sandy soil. In another the spikes are more 

 or less aggregate in a cluster or head. This is the common form 

 usually found in wet places. In the third form, the var. minor, the 

 spikes are small and aggregate. This occurs in the Adirondack moun- 

 tains. The whole plant is smaller than usual. 



Oarex debilis, Mx. A large, thrifty form is found in the Adirondack 

 region. It has five fertile spikes, the lowest one usually bearing near 

 its base a branch about an inch in length. 



Carex tentaculata, MuM. At Edmonds ponds starved specimens 

 occur which have but a single short subglobose fertile spike. They 

 were in company with var. gracilis. 



Oarex oligosperma, Mx. Stony ponds. A slender form with the 

 fertile spikes but three or four-flowered. „__ 



Agrostis scabra, Willd. In thin woods in the Oatskills there is a small 

 leafy form of this grass with green panicles. 



Muhlenbergia Mexicana, Trin. A very variable grass. Atall,slen- 

 der, slightly branched variety was found on damp shaded cliffs in Stony 

 Clove. A much branched form with short erect leaves and a rigid 

 aspect occurs on the banks of the Hudson near Albany. Growing with 

 it and scarcely to be distinguished from it, except by the awned flowers, 

 is a very similar form of Muhlenhergia sylvatica. 



Glyceria fluitans, R. Br. Edmonds ponds. In this locality the 

 spikelets are short, three to four lines long, and usually about five- 

 flowered. 



Setaria viridis, Beauv. A singular form was found at West Albany 

 on the banks of the railroad. The spikes are more slender than usual, 



