PLANTS FROM PEITAIHO 177 



Naiadaceae. Pondweed Family. 



Triglochin palustre, L. — Damp, weedy places. — Slender 

 1 ft., scape naked, with pedicellate flowers and 

 elongated fruit, leaves linear. — "Arrow Grass." 



Potamogeton natans, L. — Ponds. — Leaves 3 in. long, 

 1 in. wide, narrowing to base. — "Pondweed." 



Potamogeton Tepperi, Arth-Benn. — Ponds. — Leaves 2 

 in. long, | in. wide, obtuse at base. 



Potamogeton Gaudichaudii, Cham. — Ponds.— Leaves 



4 in. long, f in. wide, midrib lighter green. 

 Potamogeton javanicus, Hassk. — Ponds. — Slender, 



floating leaves f in. long, f in. wide. 

 Potamogenton Pusillus, L. — Ponds. — Slender, all leaves 



narrow, linear. 

 Zannichellia pedicillata, L. — Ponds. Immersed. — 



Slender 5 in., leaves linear fruit 1/5 in. long with 



prominent beak. 

 Zostera marina, L. — Marine. — Grass-like 2 — 6 ft., leaves 



linear 1 /5 in. wide, obtuse. — ' ' Eel Grass, " " Wrack. 

 Zostera marina, L. form. — Marine. — Smaller, leaves 



1/10 in. wide. Najas marine. — Ponds. — Slender, 



leaves linear, whorled coarsely toothed. 



Eriocaulaceae. Pipewort Family. 



Eriocaulon ? — Sides of ponds. — Stemless, 



cellular, leaves as long as the peduncles. 



Eriocaulon ? — Same locality. — Peduncles 



much longer than the leaves. 



Cyperaceae. Sedge Family. 



Cyperus Monti, L. — Margin of ponds. Sand flats. 

 Cyperus globosus, All. — Margin of ponds. East Cliff. 

 Cyperus Iris, L. — Margin of ponds. East Cliff. 



Kyllingia ?— Springs.— Slender. 



Eleocharis palustris, L. — Dry water courses. — Leafless. 



Fimbristylis - • • ?— Dry water courses. 



Scirpus carinatus. Smith.— Ponds.— ' ' Bulrush. 

 Scirpus triqueter, L — Ponds.— " Triangular Bulrush. 

 Scripus maritimus, L. — Brackish water. 

 Carex stenophylla, Wahlenb.— Open ground. — Stiff, 3 in. 



male and female flowers in a terminal head. April. 

 Carex pumila, Thunb.— Barren sand close to dunes. 



Many other species of this family are not yet identified. 

 Gramineae — Grass Family. 

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