1901] . Rehder, — Hybrids of Quercus ilicifolia 139 
An Oak supposed to be of the same parentage as the above 
described hybrid has been reported from Ocean Grove, N. J., by 
J. K. Haywood (see Sargent, Silva N. Am. 8, p. 156). 
Specimens of this form are preserved in the herbarium of the 
Arnold Arboretum, but as no fruits have been collected, it seems in- 
advisable to venture any definite opinion about it. The leaves differ 
from the hybrid described above chiefly by their larger size; they 
are 4—7 in. long, besides they are less deeply lobed with broader and 
shorter entire lobes, the winter buds are larger and more pointed and 
the young branches more glabrous. 
Another interesting hybrid of Quercus ilicifolia was found about 45 
years ago in Northbridge, Mass., by Dr. J. W. Robbins of Uxbridge, 
Mass. It is mentioned by A. Gray in Man. Bot. Ed. 5, p. 454 
(1867) as a hybrid of Q. zZ/iczfo/ía and coccinea. By Dr. Robbins it 
was designated as Q. palustris x ilicifolia, but this is not probable 
since Q. Pa/ustrzs does not grow in this region. He gives in a note 
accompanying his specimens, which are preserved in the Gray Her- 
barium, the following account of the tree itself and the locality where 
he found it. Perhaps it may help to ascertain whether the tree is 
still existing. 
“ Q. palustris x ilicifolia Robbins. Flowers gathered on the 2oth 
of May, 1866, from a tree 40° high and 19’ in circ. 7° from the base; 
hybrid in all probability from the species indicated; the former of 
which a tree 2° in diam. stands at a distance of but 4 rods and the 
other a shrub beneath it and elsewhere in the vicinity. The tree 
overhangs the old road to Uxbridge about the middle of a small 
wood, half a mile southwest of Whitinsville in Northbridge, Mass. 
The frost color of the leaves is intermediate between the red of one 
and the dull brown of the other. 'The ripe acorns are mostly 
striate. I first noticed the tree as peculiar about 1855." 
QUERCUS COCCINEA X ILICIFOLIA (A Gray Man. Bot. ed. 5, p. 
454 (1867). — Engelmann, Trans. St. Louis Acad. 3: 542 (1876). 
— Sargent, Silva N. Am. 8: 156 (1895) is very similar to the hybrid 
from Blue Hill The young branches remain tomentulose until 
autumn: winter buds ovate, about 2 lines long; scales ciliate and 
yellowish appressed-pubescent chiefly in the middle: leaves 34—54 
in. long, in shape almost like those of the hybrid from Blue Hill, 
but the middle lobes narrower and longer, the sinuses deeper and 
the texture somewhat thinner, usually rounded at the base; petioles 
about 1 in. long: acorns very short-stalked ; cup almost hemis- 
