206 



Leathesia difformis (L.) Aresch. — Probably the young thalli on Zoster a. 



Lithophyllum pustulatum (Lamour.) Fosl. 



Lomentaria uncinata Menegh. 



Melobesia Lejolisii Rosan. — On leaves of Zostera. 



Mesogloia divaricata (Ag.) Kiitz. 



Monostroma leptoderma Kjellm. 



M. undulatum Farlowii Fosl. 



Petalonia fascia (Miill.) Kiitz. 



Phyllophora memhranifolia (Good. & Woodw.) J. Ag. 



Polyides rotundus (Gmel.) Grev. 



Polysiphonia elongata (Huds.) Harv. 



P. Harveyi Bailey 



P. nigrescens (Dillw.) Grev. 



P. Olneyi Harv. 



P. urceolata (Lightf.) Grev. 



P. urceolata formosa (Suhr) J. Ag. 



P. variegata (Ag.) Zanard. 



Punctaria latifoUa Grev. 



Pylaiella Uttoralis (L.) Kjellm. 



Rhodermis Ceorgii (Batt.) Collins— On leaves of Zostera. 



Rhodomela subfusca (Woodw.) Ag. — ^Also the red form, approaching Rhodomela 



Rochei Harv. 

 Rhodymenia palmata (L.) Grev. 

 Sargassum Filipendula (Ag.) J. Ag. 

 Scytosiphon lomentarius (Lygyb.) J. Ag. 

 S. lomentarius complanatus Rosev. 

 Spermothamnium Turneri (Mert.) Aresch. — Attached to the base of Polysiphonia 



elongata. 

 Sphacelaria cirrhosa (Roth) Ag. 

 Spyridia filamentosa (Wulf.) Harv. 

 Sterrocolax decipiens Schmitz. — "Abundant on Gymnogongrus Torreyi, which fact 



may be interpreted as strengthening the idea that G. Torreyi is only a form of 



Ahnfeltia plicata."* 

 Stilophora rhisodes (Ehrh.) J. Ag. 

 Ulothrix flaccida (Dillw.) Thuret 

 Ulva Lactuca L. 

 U. Lactuca latissima (L.) DC. 



FUNGI 



SCHIZOMYCETES 



Bacillus amylovorus (Burr.) DeToni — On leaves of Pyrus communis. 



EUMYCETES 

 Phycomycetes 



Bremia Laclucae Regel — On Lactuca leaves. 



Cystopus candidus (Pers.) Lev. — On Bursa Bursa-pasto/is and other mustards. 



* Some Midwinter Algae of Long Island Sound, by M. A. Howe in Torreya 14: 

 97-101. June, 1914 (Contr. N. Y. Botanical Garden No. 169). 



