374 THE AMERICAN MIDLAND NATURALIST 
Vireo, Black-throated Blue Warbler, Rose-breasted Grosbeak, 
Maryland Yellowthroat, Tennessee Warbler, Least Flycatcher. 
Black-pool Warbler, Nighthawk, with 5; Towhee, Magnolia 
Warbler, Black and White Warbler, with 4; Blue-headed Vireo, 
Alder Flycatcher, Hummingbird, 3; Snowbird, Pine Warbler, 
with 2; White-breasted Nuthatch, Downy Woodpecker, Screech 
Owl, Ruby-crowned Kinglet, Water Thrush, Gnatcatcher, Greater 
and Lesser Yellowlegs, Cedarbird, Cape May Prairie, Mourning, 
Canadian, Wilson, Warblers, Whip-poor-will, with one record. 
The May migrants were: Downy Woodpecker, departed on 
the 29th; Hermit Thrush, departed on the 31st; Ruby-crowned 
Kinglet, departed on the 1oth; Myrtle Warbler, departed on the 
2oth; White-throated Sparrow, departed on 23d; Yellow Palm 
Warbler, departed on the 22d; Black-throated Green Warbler 
atrived on the 5th and departed on the 24th; White-crowned 
Sparrow, arrived on the gth and departed on the 21st; Indigo 
Bird and Gnatcatcher, arrived on the roth; Blackburnian Warbler, 
Wood Pewee, Red-eyed Vireo, arrived on the rith; Dickcissel 
and Greater Yellowlegs arrived on the 12th; Yellow-billed Cuckoo, 
arrived on the 13th; Alder Flycatcher and Cedarbird, arrived 
on the 14th; Bay-breasted, Black-throated Blue, Cape May, 
Chestnut-sided, Magnolia, Prairie Warblers, Rose-breasted Gros- 
beak, Redstart, Ovenbird, arrived on the 15th; Black and White 
Warbler, Maryland Yellowthroat, Tennessee Warbler, arrived on 
the 16th; Least Flycatcher, Scarlet Tanager, Lesser Yellowlegs, 
arrived on the 17th; Mourning and Black-poll Warblers, Night- 
hawk, arrived on the 19th; Canadian Warbler, arrived on the 
21st; Wilson Warbler, on the 22nd; Whip-poor-will, on the 23; 
Hummingbird, on the 25th. 
Conclusion next number. 
CRITICAL NOTES OF NEW AND OLD GENERA OF 
PLANTS.— VII. 
BY J. A. NIEUWLAND. 
. NUMMULARIA. 
The mycologists in a number of instances seem to have bee 
unfortunate in selecting a considerable number of hitherto un- 
corrected names which are invalidated by previous use. In the 
