183 



It may be remarked that in many localities where the writer 

 has collected Reboulia hemispherica, the plants were found to be 

 nearly all dioicous, the male and female plants frequently occur- 

 ring in large patches consisting only of male or female plants and 

 separated from each other by distances varying from a few inches 

 to a foot or more. Most European writers state that this species 

 is either monoicous or dioicous, but in the only detailed Ameri- 

 can description which I have at hand, that given by Dr. Howe 

 in his " Hepaticae and Anthocerotes of California" (p. 40), it is 

 said to be monoicous. Lett, in his " Hepatics of the British 

 Islands " (1902) states that the male receptacles occur " mostly 

 on separate plants" (p. 16). 



Technical Schools, Plymouth, England. 



A KEY TO THE NORTH AMERICAN SPECIES OF 

 INOCYBE— II* 



By F. S. Earle 



Section Rimosae 



1. Spores smooth. 2. 

 Spores rough — angular, tuberculate, or spiny. 10. 



2. Lamellae adnate or with a decurrent tooth. 3. 

 Lamellae adnexed or nearly free. 7. 



3. Stipe with reddish fibrils. /. stibroindica Bann. & Pk. f 

 Stipe glabrous or, if fibrillate, the fibrils not reddish. 4. 



4. Pileus brown with no tinge of red. 5- 

 Pileus rufescent or cervinous. 6. 



5. Pileus 4-6 cm.; lamellae brown ; stipe brown below. /. brunnesans Earle 

 Pileus 2-3 cm. ; lamellae pallid ; stipe white. I. pallidipes El. & Ev. 



6. Pileus silky-shining, rimose ; stipe pallid. I. eulheles (B. & Br.) Quelet 

 Pileus fibrillose, becoming lacerate ; stipe reddish. I. destricta (Fr. ) Gillet 



7. Pileus 4-6 cm., pale ochraceous ; stipe glabrous below, subbulbous. 



/. rimosa (Bull.) Gillet 

 Pileus 1-3 cm.; stipe fibrillose, equal. 8. 



8. Lamellae at first violaceous. /. violaceifolia Peck 

 Lamellae at first pallid or whitish. 9. 



9. Spores 8-lo^X6/"> unequally elliptical ; stipe white fibrillose throughout. 



/. euthelioides Peck 

 * Continued from page 170. 

 f The name is printed rubro-indica by Saccardo, Syll. 11 : 52. 



