282 
Mycologia 
This large and brilliantly colored poisonous species occurs 
rather commonly in the eastern United States westward to Kan- 
sas and Texas in large clusters about stumps and dying trunks 
of oak and other deciduous trees, and rarely about pine stumps. 
For a description, illustration, and notes on its poisonous and 
luminescent properties, see recent numbers of Mycologia. 
Bresadola considers Pleurotus olearius, which occurs on the 
olive in southern Europe and has been reported by Maire on 
pine, the same as this species. If this is true, I should be in- 
clined to regard Pleurotus larnpas, Pleurotus noctilucens, and 
Panus incandescens as also forms of the same widely distributed, 
highly phosphorescent plant. 
Monadelphus marginatus (Peck) comb. nov. 
Clitocybe rnargitmta Peck; V. S. White, Bull. Torrey Club 29: 
558. 1902. 
Described from specimens found growing in clusters about a de- 
caying stump at Mt. Desert, Maine, in September. There is one 
plant at Albany and it appears quite distinct. The description, 
including spore measurements, reminds one of M. illudens, with 
the exception of the color, which is bay-red verging to mahog- 
any. Miss White made an excellent colored sketch of the plant, 
with notes, which she deposited at the New York Botanical 
Garden. 
Monadelphus revolutus (Peck) comb. nov. 
Clitocybe revoluta Peck, Ann. Rep. N. Y. State Mus. 46 : 103 
(23). 1893. 
Collected once on buried wood in woods at Alcove, New York, 
and distributed by Shear. It is densely cespitose, with whitish 
surface and very crowded, narrow, adnate or slightly decur- 
rent lamellae. 
Monadelphus sphaerosporus (Peck) comb. nov. 
Clitocybe spliaerospora Peck, Bull. Torrey Club 36:331. 1909. 
Described from specimens collected under oaks at Claremont, 
California, in January. The species greatly resembles M. 
