THE AMERICAN MIDLAND NATURALIST. 



Monostroma pulchrum Farlow. Frequent. — Jelliffe. 

 Ulva Laciuca. (L.) var. latissima Le Jolis. On muddy bot- 

 tom, C. S. H.— D. S. J. 



VALONIACEAE. 



Dictyocystis Hitchcockii (Wolle) Lag. Common bottom 2nd 

 Lake, C. S. H.— N. M. G. 



VAUCHERIACEAE. 



Vaucheria sessilis (Vauch) De Cond. In springs and pools 



back of school house, C. S. H. — D. S. J. 

 Vaucheria Thuretii Wor. Near fresh water inlets, wet areas 



near tide pools, C. S. H. — D. S. J. 



VOLVOCACEAE. 



Chlamydomonas sp. Common — Jelliffe. 



Gonium pectorale Muell. Frequent throughout the island. — 



Jelliffe. 

 Haematococcus pluvialis (Flotow) Sommerf. Common 



throughout. — Jelliffe. 

 Pandorina Morum (Muell.) Bory. C. S. H. — D. S. J. 

 Volvox aureus Ehr. Ponds, C. S. H. — E. N. T. 

 Volvox globator L. Not infrequent. Local. — Jelliffe. 



VIII.— CHAROPHYTA. 



CHARACEAE. 



fChara formosa C. B. Robinson. Southold, L. I. — Burnham 



and Latham.* 

 jNitella flexilis Ag. Southold, L. I. — Burnham and Latham. 

 jNitella intermedia L. Southold, L.I. — Burnham and Latham. 

 jNitella transilis Allen Southold, L. I. — Burnham & Latham. 

 Nitella sp. Dying Pond. Cold Spring Harbor. — 0. E. J. 



IX.— PHAEOPHYCEAE.* 



CHORDARIACEAE. 



Chorda Filum (L) Stack. Frequent on stones at Lloyd's 

 Point, L. L— D. S. J. 



* Torreya 23. 



f These species may be expected to appear at Cold Spring Harbor. 



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