\ 



28 Report of the State Botanist. 



berry rust, Cmoma nitens^ both in the dewberry and the black- 

 berry. Plants badly infested by this rust are generally destitute 



of prickles. 



Bubus setosus Bigel 



This northern species occurs in the open region known as "The 

 Plains." This is in the southern part of St. Lawrence county 

 near the headwaters of the Oswegatchie river. 



Agrimonia parviflora Ait. 



Pine Plains. The plants were not yet in flower early in 

 August. 



Bosa blanda Ait. 



The variability *of our native roses is the source of considerable 

 difficulty and perplexity in their classification. In the last edition 

 of the Manual this f-pecies is said to have no infrastipular spines, 

 yet in a specimen collected at Cooperstown Junction these are 

 plainly present. The stipules are described as dilated, but in 

 another specimen from the same locality, they are very narrow. 

 The fruit is described as globose, but in specimens collected at 

 Thompson's lake, the fruit is pointed at the base and somewhat 

 pyriform. In these specimens also the stipules are very narrow, 

 even on young shoots. 



Ribes Grossularia L. 



Bethlehem. May. An introduced species and escaped from 



cultivation. 



Saxifraga aizoides L. 



Nearly thirty years ago this plant and its companion. Primula 

 Mistassinica, were discovered by Rev. J. A. Paine on the wet and 

 dripping precipices that lie along Fish creek, above Taberg. Both 

 these plants are still abundant in that locality, and the nature of 

 the place is such that nothing but the greed of botanists is likely 

 soon to exterminate them. 'J'he yellow saxifrage is especially lux- 

 uriant, and often exceeds the dimensions attributed to it in the 

 Manual. It is in flower when the primula is developing its fruit. 



Drosera rotundifolia L. 



This pretty little sundew is common in the Adirondack region. 

 A favorite habitat of it is on decaying trunks of trees lying in 

 the water of lakes and ponds. 



