Report of the State Botanist. 109 



MiLLlUM EFFUSUM, L. 



A tall glaucous-leaved form, is plentiful in woods in the Boreas river 

 valley in Minerva, Essex county. 



Pell^ea gracilis, Hooh. 

 About the entrance of a limestone cavern, Minerva. The presence 

 of limestone appears to be a necessity to this rare little fern. Although 

 there aie many localities in the Adirondack region which seem favor- 

 able to its growth, I have never observed it there except in the imme- 

 diate vicinity of limestone, and as this is in limited quantity and scattered 

 stations, this fern occupies there very isolated and limited localities. In 

 the station mentioned it was in company with Aspidium aculeatum Sw. 

 V. Brmmii. 



WOODWARDIA ViRGINICA, Sm. 



Abundant in a marsh near Karner. 



Agaricus stipitarius, Fr. v. setipes. 

 Stem elongated, straight, very slender, three to four inches long, 

 scarcely as thick as a knitting needle. Caroga. July. Specimens of 

 this species revive on the application of moisture, thus indicating a 

 close relationship to species of Marasmius. 



Agaricus clavicularis, Fr. 

 This species is quite variable with us. Three or four forms or 

 varieties were found growing under balsam trees in one locality in 

 Caroga. Var. albus is wholly white. Var. cinereus has the pileus and 

 stem pale cinereus; this is the most common. Var. filipes has the pileus 

 small, two or three lines broad, and the stem very slender or filiform. 

 When moist the stem is viscid, and in taking it from its place of growth 

 the fingers are liable to slip from their grasp before the plant yields 

 from its attachment to the ground, but when dry it is taken without 

 difficulty. The pileus is not viscid, and by this character the species 

 may be distinguished from A. vidgaris. 



Agaricus Leaianus, Berh. 



This beautiful Agaric is common in the woods of all our hilly or 

 mountainous districts, growing most frequently on dead trunks of beech, 

 but often on those of other deciduous trees. In a single instance it 

 was found growing on decaying wood of hemlock. 



Agaricus fibula v. conicus. 

 This singular variety has the pileus conical, not umbilicate, sometimes 

 papillate. Mossy prostrate trunks in woods. Caroga. July. 



Agaricus atroc^ruleus, Fr. 

 I have not yet found the plant with blue colors. It is brownish with 

 us and villose with grayish densely tufted hairs, sometimes inclining to 

 a cervine hue. On poplars. Karner. Sept. 



Agaricus rhodopolius, Fr. v. umbilicatus. 

 Pileus convex, umbilicate, i to 2 inches broad ; lamella; subdecur- 

 rent; stem elongated, slender, containing a small cavity. Karner. Sept. 

 A slender variety growing with the ordinary form, but ajjpearing cpiite 

 unlike it. 



