No. 15.] HYMENIALES OF CONNECTICUT. 



19 



20. Edge of gills lemon-yellow 21 



Edge of gills not lemon-yellow 22 



21. Cap lemon-yellow or orange R, aurata 



Cap bright blood-red R, alutacca 



22. Cap I to 2 inches broad 23 



Cap 3 to 5 inches broad 24 



2^. Stem tapering upwards, stuffed or sometimes hollow 



R. roscipes 



Stem equal, solid R. Mariae 



24. Stem short, i to 3 inches long, thick and club-shaped 



R. Integra 

 Stem elongated, 3 to 5 inches long, cylindrical R. dccolorans 



PLEUROTUS Fr. 

 Veil appendiculate around margin of young cap ; cap 



variegated with dingy brown, spot-like scales. .P. dryiniis 



No evidence of remnants of veil on margin of young cap i 



1. Gills extending down the stem (decurrent) 2 



Gills not decurrent 5 



2. Stem very short or absent 3 



Stem distinct 4 



3. Cap I to 3 inches broad, viscid when young, variously 



tinged with dark yellow-green, or red P. serotinus 



Cap 3 to 5 inches broad, not viscid when young, yellow- 

 white, becoming darker with age P. ostreatus 



4. Spores in mass tinged with lilac; stem i to 2 inches 



long P- sapidus 



Spores in mass pure white; stem ^ inch long or 

 shorter, channeled P- petaloides 



5. Stem 2 to 3 inches long, solid P. uhnarius 



Stem often absent; when present, stuffed, becoming 



hollow P- lig'tatilis 



HYGROPHORUS Fr. 



Cap distinctly viscid ^ 



Cap viscid only when moist 4 



Cap not viscid when moist 9 



I. Cap white, then deep red; gills white. sixUtod with 



i.g(j H. ernbcsccns 



Cap not tinged with red ^ 



