26 NEW YORK STATE MUSEUM 



same plants. The fungus on this host plant is designated form 

 cyani. 



Senecio vulgaris L. 



The common groundsel is sometimes a troubl^^some weed in 

 gardens. It begins to flower early in the spring and in wet 

 seasons successive crops spring up and continue the production 

 of seed till cold weather stops their growth. In poor soil it will 

 flower when but two or three inches high, in rich soil it may grow 

 12 inches high and bear many branches. It grows rapidly and 

 requires but a few days in which to develop from seed to maturity. 

 The soil sometimes becomes so filled with its seeds that as fast 

 as one crop of the plants is destroyed another takes its place. 



Sisymbrium altissimum L. 

 The tall sisymbrium is an introduced plant which has proved 

 to be quite troublesome as a weed in some of the northwestern 

 states. The past summer it appeared in the vicinity of Albany. 

 It was probably brought here either from the north or the west 

 where it has become firmly established. By destroying such 

 troublesome weeds when they first appear much future labor and 

 trouble may be saved. 



Solidago canadensis glabrata Porter 

 Generally the early goldenrod, Solidago juncea, is the 

 first species to blossom in our latitude. It begins to flower in July, 

 The past season, which is notable for its peculiar influence on 

 some plants, seems to have hastened the time of flowering of some 

 species. On July 24, S. juncea, S. canadensis glab- 

 rata, S. arguta and S . r u g o s a were all found growing 

 near each other at North Creek and all were nicely in flower. The 

 glabrate Canada goldenrod is a northern variety and perhaps in 

 its effort to meet the requirements of the short northern seasons 

 it has acquired the habit of blooming early. 



Viola cucuUata Ait. 



In the cold bogs and wet places of the Adirondack region where 



this blue violet delights to grow, it is not unusual to find it with 



flowering scapes 6-9 inches long. The flowers much surpass the 



leaves, often standing twice as high. Such specimens were col- 



