1886.] BOTANICAL GAZETTE. 33: 
I was much interested in the specimens seen of Quercus 
Michauwii Nutt., which, indeed, occurs near Washington, but 
very sparingly and in such doubtful forms that I had almost felt 
obliged to apologize for its introduction in the Flora of Wash- 
ington. The most northerly point at which typical specimens 
were seen was on Powell Run, the first stream north of the 
Quantico. Here a fine tree was found, and fruiting specimens 
collected. Some of the lower leaves are scarcely distinguishable 
from those of Q. Prinus, while the upper ones show considerable 
analogy to those of Q. bicolor, to which species the tree is, of 
course, most closely allied. In the valley of the Pamunkey, 
near Hanover Court House, this species is very abundant, and 
the trees attain a great size. The resemblance to Q. bicolor is 
ably one half of the territory, is grown over with pines. The 
considerable extent, of an “old field pine,” but P. inops, the 
scrub pine, grows in similar situations. As one proceeds south- 
the species, while, as I have always observed, the leaves of young 
the gradual appearance of the former species. One might almost 
think that a partial hybridization was going on. Nowhere on 
