204 
Rotala ramostor, Koehne. 
Hydrocotyle umbellata, L. 
Sanicula gregaria, Bick. 
Cryptotaenia Canadensis, DC. 
Galium pilosum, Ait. 
Eupatorium teucrifolium, Willd. 
Eupatorium sessilifolium, L. 
Mikania scandens, L. 
Sericocarpus solidagineus, Nees. 
Aster subulatus, Michx. 
Aster tenuifolius, L. 
Solidago speciosa, Nutt. 
Solidago tenuifolia, Pursh. 
Pluchea camphorata, DC. 
Iva frutescens, L. 
Coreopsis trichosperma, Michx. 
Bidens chrysanthemoides, Michx. 
Cnicus horridulus, Pursh. 
Prenanthes alba, L. 
Prenanthes serpentaria, Pursh. 
Gaylussacia frondosa, T. & G. 
Leucothoe racemosa, Gray. 
Rhododendron nudiflorum, Torr. 
Rhodora 
[AUGUST 
Chimaphila maculata, Pursh. 
Ilex opaca, Ait. 
Llex laevigata, Gray. 
flex glabra, Gray. 
Castilleia coccinea, Spreng. 
Pycnanthemum muticum, Pers. 
Collinsonia Canadensis, L. 
Galeopsis Ladanum, L. 
Asclepias purpurascens, L. 
Asclepias quadrifolia, L. 
Asclepias obtusifolia, Michx. 
Asclepias tuberosa, L. 
Asclepias verticillata, L. 
Salicornia ambigua, Michx. 
Celtis occidentalis, L. 
Betula nigra, L. 
Salix tristis, Ait. 
Chamaecyparis sphaeroidea, Spach. 
Hypoxis erecta, L. 
Uvularia perfoliata, L. 
Woodwardia augustifolia, Smith. 
Woodsia obtusa, Torr. 
Lygodium palmatum, Swartz. 
Other plants of interest collected on this trip include Ranunculus 
multifidus, Barbarea stricta, Polygala polygama, Prunus pumila, 
Potentilla arguta, Zizia aurea, Houstonia purpurea, var. longifolia, 
Lysimachia thyrsiflora, Pentstemon pubescens, Phryma Leptostachya, 
Corallorhiza odontorhiza, and Spiranthes latifolia. 
PORTLAND, MAINE. 
^ 
NOTES ON ALGAE,— V. 
F: 5. GOLDINE 
In Ruopora, Vol. IV, p. 176, there was noted the possibility that 
the Delesseria collected near Machias, Maine, as D. alata (Huds.) 
Lamour., might be distinct from the European species of that name ; 
a comparison with many specimens from different parts of Europe 
has since changed the suspicion to a belief. D. alata has an entire 
margin, rounded tips and indistinct lateral veins, while the specimens 
from Starboard Island have a dentate margin, pointed tips and dis- 
tinct lateral veins, agreeing with the arctic plant usually known as 
D. Montagnei Kjellman. In looking up the literature for this species, 
