180 
THIRTEENTH REPORT. 
Ralix rostrata Richards. Bebb’s willow. Little Charity Island. 
Populus tremuloides Miclix. Common poplar. — American aspen. — Fre- 
quent. Charity and Little Charity Islands. 
Populus grand! dent- at a Mielix. Large-toothed aspen. Occasional. 
Charity Island. 
Populus balsa mif era L. Balsam poplar. — Common on and near the 
beach. Trees usually small and often acting as a sand binder. Charity 
and Little Charity Islands. 
Populus deltoicles Marsh. Cottonwood — Common. Many large trees 
in woods and small trees or shrubs on and near the beach. Charity and 
Little Charity Islands. 
M yrica gale L. Sweet gale. — In low wet groilnd. Apparently rare. 
Charity Island. 
Ostrya virginiana (Mill.) Iv. Koch. Ironwood. — Frequent in rich 
ground with other trees at the north end. Charity Island. 
Betula alba L. White birch. Paper birch. Canoe birch. — Common 
with other trees. Charity Island. 
Alnus incana (L.) Moench. Speckled alder. Hoary alder. — Common 
in low ground. Charity Island. 
Fagus grandifolia Elirh. American beech. — One large tree found on 
the east side and first noticed by Charles McDonald. Charity Island. 
Quercus alba Li. White oak. — A few small trees on Little Charity, 
but not noticed on Charity Island. 
Quercus macrocurpa Michx. Bur oak. — A few trees found on Little 
Charity, but not noticed on Charity Island. 
Quircus bicolor Willd. Swamp white oak. — A few trees noticed in 
rich ground at the north end of Charity Island. 
Quercus rubra D. Red oak. — Common on poor sandy ground, one of 
the dominant trees. Charity Island. 
Quercus coccinca Moench. Scarlet oak. — A number of trees on the 
east side of Charity Island are referred to this species. 
Quercus ellipsoidal is E. J. Hill. Yellow oak. — Frequent on sandy 
ground near the upper beach, especially on east side. Charity Island. 
Ulmus americana L. White elm. American elm. — Common with other 
trees in rich ground. Charity and Little Charity Island. 
Ccltis occidental is L. Hackberry. Sugarberry. — Common on Little 
Charity, but not noticed on Charity Island. 
Urtica gracilis Ait. Slender nettle. — Occasional in damp open places 
and damp woods. Charity and Little Charity Islands. 
Laportea canadensis (L.) Gaud. Wood nettle. — Common in rich 
woods. Charity Island. 
Pile a pumila (L.) Gray. Richweed. Clearweed. — Frequent in rich 
shaded ground. Charity Island. 
Comandra umbellate (L.) Nutt. Bastard toad-flax. — Common in dry 
ground. Charity Island. 
Rum ex crispus L. Yellow dock. — About the lighthouse and occasional 
along the beach. Charity and Little Charity Islands. 
Polygonum aviculare L. Knotgrass. — Noticed about the lighthouse 
and as occasional on dry ground in other places. Charity Island. 
Polygonum ampbibium L. Water persicaria. — In and about the pond. 
Charity Island. 
