FIFTEENTH REPORT. 
2'X 
B ET U LACK A E — BI RCH FA M I LY. 
Corylus rostrata Ait. Beaked Hazelnut. Common throughout the is- 
land. 
Ostrya virginiana (Mill.) K. Koch. Iron wood. Plentiful, growing 
with birch and maple. 
Carpinus caroliniana "Walt. Blue Beech. Noticed by Frank A. Kenyan, 
superintendent of park. 
Betula lutea Michx.f. Yellow Birch. Abundant and large on the east 
side of the high part of the island, and scattering throughout. 
Betula alba papyrifera (Marsh) Spach. Canoe Birch. Trees often 
large and growing with other trees throughout the island. 
Alnus incana (L.) Moench. Speckled Alder. Frequent in wet spots 
I liroughout. 
FAGACEAE — BEECH FAMILY. 
Fag'iis grandifolia Elirh. Common Beech. Abundant and trees large 
on the highest part of the island. 
Quercus rubra L. Red Oak. Abundant and fair sized trees growing 
with beech and maples on the highest parts of the island. 
URTICACEAE NETTLE FA M I LY. 
Ulmus americana L. American Elm. In streets and yards of the vil- 
lage. Frank A. Kenyan, superintendent of park. 
Urtica gracilis Ait. Slender Nettle. Frequent in damp open or shaded 
ground. 
SANTALACEAE SAXDLEWOOD FAMILY. 
Comandra umbellata (L.) Nutt. Bastard Toad-flax. Frequent in dry 
open or shaded ground. Perhaps this is doubtful and may be referred 
to next species. 
Comandra richardsiana Fernald. Richards’ Toad-flax. Plentiful on the 
east side in dry open or slightly shaded ground. 
POLYGON A C E A E — P. UCKWH EAT FA M I LY. 
r 
Rumex crispus L. Yellow Dock. In the village and on cultivated 
grounds. 
Rumex obtusifolius L. Bitter Dock. About the village and occasional 
in open woods. 
Rumex acetosella L. Field Sorrel. Occasional on dry ground in and 
near the village. 
Polygonum avieulare L. Knotgrass. About the village and in culti- 
vated grounds. 
Polygonum acre HBK. Water Smartweed. Michigan Flora. Not 
noticed in 11)12. 
Polygonum persicaria L. Lady’s Thumb. Occasional about the village 
and in cultivated grounds. 
Polygonum convolvulus L. Black Bindweed. About the village and on 
cultivated grounds. 
