402 Appendix: Seventh Report on the Survey of 



summit, so it also surpasses them in the number of its species of 

 plants. With few exceptions a list of the plants of its summit 

 would include the species found on any of the high peaks of this 

 region. On the other hand, several species occur on the summit of 

 Mount Marcy that have not been found on any of the neighboring 

 mountains. About thirty species of flowering plants have been 

 found on the White Mountains which have not been detected on 

 the Adirondacks. The greater altitude of those mountains gives 

 them a greater extent of exposed surface and consequently a more 

 varied flora. None of my visits to the summits of the mountains 

 have been made before the middle of July. Possibly an examina- 

 tion earlier in the season might reveal a few species that escape 

 detection at a later period. About forty years ago the little Moss 

 plant, Cassiope hypnoides, was found by Dr. Parry growing in a 

 sheltered depression on the summit of Mount Marcy, but it does 

 not appear to have been found there since. Some years ago Prof. 

 Lesquereux found a rare Moss, Tetraplodon mnioides y near the 

 summit, but in my subsequent visits to the mountain I failed to re- 

 discover it. Other plants, such as Rhododendron Zapponicum, 

 Betula glandulosa, Juncus trifidus, Aulacomnion turgidum, My%L- 

 rella julacea, and Hypnwm sarmentosum are in such small quan- 

 tity that they are in danger of being exhausted from the locality if 

 taken too freely by botanists and other visitors. The following list 



/^contains the names of species seen by the writer on the open sum- 



' mit of Mount Marcy : 



Phaonogamia or Flowering Plants. 



Botanical Names. Common Names. 



Coptis tri folia Salisb Goldthread . 



Arenaria Grcenlandica Spreng Greenland Sandwort. 



Oxalis Acetosella L Wood Sorrel . 



Potentilla tridentata Ait Three-toothed Cinquefoil 



Rubus stngosus Mx Red Raspberry. 



Pyrus Americana D. C Mountain Ash. 



Spirrea salicifolia L Meadow-sweet. 



-^ ., v- L -r v t \ Willow-herb. 



Epilobmm angustifohum L -j Fjre Wee d. 



? Dwarf Dogwood. 

 Bunchberry. 

 Sugarberry. 



Linnea borealis Gronov Twin-flower. 



Houstonia cscrulea L Bluets. 



Solidago thyrsoidea Meyer Mountain Goldenrod. 



\ 



