1 83 



11. Spores large, n-13/^ / 4-5 A 1 - C. aurtifoliusYV. 

 Spores smaller, 7-8 /i X 4~ D /"■ l2 



12. Stipe long, 5-8 cm. C. tinnamo metis ( L. ) Fr. 

 Stipe short, lj^-2^ cm. C. Sintenisii Kres. 



13. Stipe white. C. appendietdatus Johns. 

 Stipe concolorous. C. lutescem Pk. 



Hydrocybe 



I. Pileus somewhat fleshy, margin incurved when young ; stipe attenuate above. 



Section Fir mitres. 



Pileus submembranous, margin straight from the first ; stipe subcylindric or at- 

 tenuate below. Section Tenuiores. 



Finn iores 



1. Stipe white, cortina colored like pileus. 2. 

 Stipe and lamellae violaceous. 3- 

 Stipe and subobsolete veil yellow or reddish. 4. 

 Stipe brown ; cortina white or pallid ; lamellae dark. 5- 



2. Lamellae at first pallid. C. armeniacus (SchaefF. ) Fr. 

 Lamellae at first violaceous. C. regular is Pk. 



3. Stipe smooth, glabrous. C. castaneus (Bull.) Fr. 

 Stipe fibrillose. C. fusco-violaceus Pk. 



4. Small; pileus 1-2 cm.; in pastures. C. vernalis Pk. 

 Larger; pileus 2^-4 cm.; in woods. C. pulcher Pk. 



5. Small ; pileus 1-3^2 cm.; on ground in woods. C. praepallens Pk. 

 Large ; pileus 10 cm.; on logs. C. rubidus Mont. 



Tenuiores 



I. Pileus bay-brown, disc darker. C. decipiens (Pers. ) Fr. 



Pileus pale alutaceous, dai'ker when dry. C. pallidus Pk. 



Not able to place C. venosus Johns. 

 New York Botanical Garden. 



PETIOLATE CONNATION IN TRIFOLIUM PRATENSE 



By Charles A. White 



Among the autumn stools of Trifolium pratense growing upon 

 my house-lot in Washington I discovered in October last a leaf 

 consisting of five leaflets and an unusually strong petiole. It was 

 the fifth and innermost one of the five leaves which were then 

 borne upon one of the six sprouts constituting the stool. All 

 the other leaves of that stool, and all those of the many other 

 stools which I examined bore only the normal number of three 

 leaflets each. Supposing this leaf to have been a foliate variation 

 similar to that which has become the race character of Professor 



