178 
THIRTEENTH REPORT. 
Eleocharis tenuis (Willd.) Sclniltes. Slender spike-rusli. — Occasional 
in damp ground. Charity Island. 
Scirpus americanus Pers. Three-square. — Common in wet spots 
along the beach. Charity Island. 
Scirpus occidentals (Wats.) Chase. Western bulrush. — In and 
about the pond. Occasional in wet sand along the beach. Charity 
Island. 
Scirpus atrovirervs Muhl. Dark green bulrush. — Occasional in wet 
places. Charity Island. 
C la dium mariscoides (Muhl.) Torr. Twig-rush. — In very wet places 
along the beach. Charity Island. 
Car ex muhlenbergii Schkuhr. Muhlenberg’s sedge. — Frequent on dry 
sandy ground and sand ridges. Charity Island. 
Car ex stipata Muhl. Awl-fruited sedge. — Occasional in very wet spots. 
Charity and Little Charity Islands. 
Car ex pennsylvanica Lam. Pennsylvania sedge. — Common in dry 
shaded and open ground. Charity Island. 
Carex crawei Dewey. Crawe’s sedge. — Occasional in damp sand along 
the beach. Charity and Little Charity Islands. 
Carex fll if or mis L. Slender sedge. — Frequent in very wet places. No- 
ticed in particular about the pond. Charity Island. 
Carex hystericina Muhl. Porcupine sedge. — Occasional in wet spots 
along the beach. Charity and Little Charity Islands. 
Carex intumescens Pudge. Bladder sedge. Occasional in rich damp 
woods. Charity Island. 
Arisaema triphylium (L.) Schott. Indian turnip. Jack-in-the-pulpit. 
—Common in rich woods. Charity Island. 
Acorns calamus L. Sweet flag. — On west side of Little Charity, not 
noticed on Charity Island. 
Spirodela polyrhiza (L.) Schleid. Greater duckweed. — Border of 
pond on water and mud. Charity Island. 
Pontederia cordata L. Pickerel-weed. — Noticed in the pond. Char- 
ity Island. 
Juncus tenuis Willd. Slender rush. Yard rush. — About the light- 
house and along paths. Charity Island. 
Juncus balticus littoralis Engelm. Baltic rush. — Frequent in sand 
along the beach acting as a sand binder. Charity Island. 
Juncus alpinus insignis Fries. Richardson’s rush. — Frequent along 
the beach in damp sand. Charity Island. 
Juncus alpinus fuscescens Fernald. Richardson’s rush. — Occasional 
along the beach in damp sand. Charity Island. 
Luzula saltuensis Fernald. Hairy wood rush. Frequent in damp 
shaded ground. Charity Island. 
Lilian) philadelphicum andinum (Nutt.) Ker. Western red lily. — In 
dry sandy ground. Apparently rare. Charity Island. 
Lilium superbum L. Turk’s-cap lily. — On the east side in damp 
ground. Apparently rare. Charity Island. 
Asparagus officinalis L. Garden asparagus. — Occasional in dry 
sandy ground. Charity Island. 
Smilacina racemosa (L.) Desf. False spikenard. — Common in damp 
or dry ground. Charity and Little Charity Islands. 
