46 Rhodora [MARCH 
near Bath, twenty miles east of Portland, among which are Venus 
mercenaria, and others, reminding one, as Verrill says, of the coast 
fauna of New Haven, on Long Island Sound. Shells of oysters, clams, 
and scallops (the southern Pecten irradiens) are abundant in the deeper 
portions of the mud of the harbor of Portland. As with the flora, 
so with the fauna, certain species are found to-day, living in protected 
situations." ! 
PEABODY ACADEMY OF SCIENCE, 
Salem, Massachusetts. 
NOTES ON SOME PLANTS OF NORTHEASTERN 
AMERICA. 
M. L. FERNALD. 
DunixNc studies upon various North American plants the attention 
of the writer has been called to several northeastern species, varieties, 
and notable forms which are either undescribed or are now passing 
by names which they cannot retain under the international rules 
adopted at Vienna. Most of these plants are of such diverse affinities 
as to furnish slight thread for a continuous discussion, and the notes 
upon them have, therefore, been allowed to accumulate. Аз the 
number of these notes is now considerable they are here presented 
that they may be more readily available. 
POTAMAGETON bupleuroides, n. sp., caulibus gracilibus 1-2 mm. 
crassis 2-7 dm. longis plerumque ramosissimis rectis, internodiis brevi- 
bus 0.5-1.5 (raro ad 3) dm. longis; foliis planis fulvis valde unicos- 
tatis nerviis lateralibus 6—16, superioribus orbicularibus vel ovatis 
obtusis basi amplexicaulibus 1-3 сш. longis, inferioribus ovatis vel 
lanceolatis obtusis vel subacutis 2.5-4.5 cm. longis; stipulis obsoletis 
vel nullis; pedunculis gracilibus 2-6 em. longis; spicis 0.7—2 cm. longis; 
fructibus anguste obovoideis 2.5—3.2 mm. longis lateraliter compressis 
valde impressis dorso convexo obscure carinato, stylo gracili, epicarpo 
olivaceo-fulvo arcte contento. — Stems slender, 1-2 mm. thick, not 
spongy, 3-7 dm. long, simple below, usually much branched above, 
1 Dana Manual of Geology, 561. 
