208 Rhodora [SEPTEMBER 
Gilib., 1791; Avena bulbosa Willd., 1799; Holcus bulbosus Schrad.; 
Arrhenatherum bulbosum Presl; Avena elatior var. tuberosa Aschers.) 
This common European species appears to be a recent immigrant. 
There is no record of its appearance in this country earlier than Octo- 
ber, 1910, when the first specimen was received from Mr. Cooper. As 
yet the only specimens received from the Manual region are from 
King George, Caroline and Chesterfield counties, Virginia. The 
variety differs from Arrhenatherum elatius chiefly in production of 
clusters of moniliform corms. The spikelets are similar to those of 
the species but the hairs at the base of the florets are shorter and the 
second floret is awned. In the species the second floret is usually 
awnless but sometimes bears a short awn. 
Cinna arundinacea has not been found with the clusters of monili- 
form corms. Late fall specimens show a single basal internode 
thickened and corm like, as in Phlewm pratense but much more devel- 
oped.— AGNES CHASE. 
Vol. 13, no. 152, including pages 173 to 188, was issued 9 August, 1911. 
