No. 3.] HYMENIALES OF CONNECTICUT. 1/ 



abundance of spores will accumulate, making possible the fol- 

 lowing divisions : 



1. White Spores. Spores pure white, with an occasional 

 slight tinge of yellow or pink. 



2. Ochre Spores. Spores yellow-brown or rust color. 



3. Rosy Spores. Spores pink or some shade of pink. 



4. Brown Spores. Spores dark brown or purple-brown. 



5. Black Spores. Spores black, showing no tinge of 

 brown or purple. 



Key to the White-S pored Groiip."^ 



Margin of the gills acute i 



Margin of the gills longitudinally split or grooved. . 17 



1. Mushrooms soon decaying or shrivelling 2 



Mushrooms leathery, woody or corky, rigid when dry 15 



2. Gills not attached to the stem; ring, volva or both 



present on the stem 3 



Gills attached to the stem but not extending down it 



(adnate or adnexed) 4 



Gills attached to the stem and extending down it 



(decurrent) 10 



3. Volva and ring present Amanita 



Volva present; ring absent Amanita psis 



Volva absent ; ring present Lepiota 



4. Volva absent ; ring present Armillaria 



Volva and ring absent 5 



5. Plants tough, membranaceous or leathery, drying 



quickly but reviving when moistened Marasniiiis 



Plants fleshy 6 



6. Cap and gills very crisp and brittle 9 



Cap and gills not crisp and brittle 7 



7. Gills attached to the stem by a small, sudden curve 



(sinuate) , Tricholoma 



Gills not sinuate 8 



8. Margin of cap inrollcd when young Collybia 



Margin of cap straight against the stem when young ; 



cap slender, bell-shaped Mycena 



Genera not reported from Connecticut are omitted from these keys. 

 2 



