17G 
THIRTEENTH REPORT. 
Pin us resinosa Ait. Red pine. Norway pine. — Common and many 
large and fine specimens. Charity Island. 
Larix laricina (I)u Roi) Koch. Tamarack. American Larch. — A few 
trees near the pond. Charity Island. 
Tsuga canadensis (L.) Carr. Hemlock. — Noticed as occasional, but 
trees not large. Charity Island. 
Thuja occidental is L. White cedar. Arbor vitae. — Common, espe- 
cially on and near the upper beach. Charity Island. 
J uni perns comm unis L. Common juniper. Occasional in dry woods. 
Charity Island. 
Juniperus communis depressa Pursh. Low juniper. — Mostly on the 
west side along the upper beach acting as a sand binder. Charity 
Island. 
Typha latifolia L. Common cat-tail. — Occasional in very wet places, 
noticed in particular near the pond. Charity Island. 
Eagittaria latifolia Willd. Broad-leaved arrow-head. — About the 
] xnid and occasional in wet sand along the shore. Charity Island. 
Alisma plant ago-aquatica L. Water plantain. — Occasional in low wet 
places along or near the beach. Charity Island. 
Elodea canadensis Michx. Water-weed. — Abundant in the pond. 
Charity Island. 
• Andropogon scoparius Michx. Broom beard-grass. — Frequent in dry 
ground and on sand ridges. Charity Island. 
Andropogon furcatus Muhl. Forked beard-grass. — Frequent on poor 
sandy ground. Charity Island. 
Sorghastrum nutans (L.) Nash. Indian grass. Wood grass. — Fre- 
quent in open dry ground and on sand ridges. Charity Island. 
Digit-aria sanguinalis (L.) Scop. Large crab grass. — As a weed about 
the lighthouse. Charity Island. 
Panicum capillare L. Old witch grass. — As a weed about the light- 
house. Charity Island. 
Panicum rirgatum L. Switch grass. — Common in sandy open ground 
and on sand ridges near the upper beach. Charity Island. 
Panicum depauperation Muhl. Starved panicum. — Frequent in open 
sandy ground. Charity Island. 
Panicum dichotomum L. Forked panicum. — Common in sandy shaded 
ground. Charity Island. 
Panicum scribnerianum Nash. Scribner’s panicum. — Frequent in dry 
sandy ground. Charity Island. 
Echinochloa crusgalli, (L.) Beauv. Barnyard grass. — As a weed about 
the lighthouse and occasional along the beach. Charity Island. 
Eetaria glauca (L.) Beauv. Yellow foxtail. Pigeon grass. — As a 
weed about the lighthouse. Charity Island. 
Pet aria viridis (L.) Beauv. Green foxtail. Bottle grass.— As a weed 
about the lighthouse. Charity and Little Charity Islands. 
Phalaris arundinacea (L.) Reed canary grass. — Occasional in wet 
marshy places. Charity Island. 
Mi Ilium effusion LI. Millet grass. — Occasional in rich shaded ground. 
Charity Island. 
Stipa spin-tea Trim Porcupine grass. — Occasional on poor sandy 
ground. Charity Island. 
