144 J. SATJNDERS NOTES ON THE IIYCETOZOA. 



were collected in 1889, by Mr. Jolm Hopkinson and Mr. George 

 Massee, at a Field Meeting of the Society (See ' Trans. Herts Nat. 

 Hist. Society, Vol. V, p. xlviii). Another, viz., Stemonitis ferru- 

 ginea^ was collected there at a Field Meeting in 1891 (See ' Trans.,' 

 Yol. YI, p. Ixx.). The other records are those of myself and my 

 son, and have been made since 1891. 



As a guarantee of accuracy in naming, it need only be said that 

 specimens of all the forms recorded, except those on the authority 

 of Mr. Massee, have been examined by Mr. A. Lister, or by his 

 daughter Miss G. Lister, to both of whom my grateful acknow- 

 ledgments are due. 



In the Hertfordshire list, the localities are given under the river- 

 basins, as in the ' Flora of Hertfordshire ' and other botanical 

 records published by the Society in its ' Transactions.' 



Heetfokdshire. 



Ceratium hyd^ioides, A. & S. Ivel. — Hitchin ; Miss G. L. 



Physarum leucophmmi, Fr. — Common. 



P. nutans, Pers. [ = Tilmadoche nutans, Host.). Ivel. — Hitchin; 



Miss G. L. and II. E. S. Lea. — Caddington. 

 P. compressum, A. & S. Ivel. — Hitchin ; stalked and plasmodio- 



carp form.?i, from dirty white plasmodiuin ; H. E. S. 

 P. viride, Pers. {= Tilmadoche mutabilis, Rost.). Colne. — Kens- 

 worth. 

 P. diderma, Post. Colne. — Redboum. 

 Craterium vulgare, Ditm. Ivel. — Hitchin ; Miss G. L. 

 C. leucocephalum (Pers.) Post. Colne. — Kensworth. 

 Leocarpus fragilis (Dicks ) Post. Colne. — Kensworth. 

 Badhamia imnicea (Fr.) Post. Ivel. — Hitchin; Miss G. L. 

 B. hyalina (Pers.) Berk. Colne.— Zouche's Farm, Caddington. 

 B. titricularis (Bull) Berk. Colne. — Kensworth. Zouche's Farm, 



Caddington. 

 £. inaurata, Curr. { = B. nitens, Berk.). Plasmodium pale yellow. 



Colne. — Zouche's Farm, Caddington. 

 Didymium squamulosum (A. & S.) Fr. Ivel. — Hitchin ; S. E. S. 



Colne. — Ayer's End; A. E. G. 

 Chondrioderma dijforme (Pers.) Post. Ivel. — Hitchin; Miss G. L, 

 C. radiatum (Linn.) Post. Colne. — Kensworth. 

 Stemonitis fusca, Poth. Colne. — Beechwood, near Flamstcad. 

 S. ferruginea, Ehrh. Colne. — Kensworth. Bricket Wood ; Massee, 



in ' Trans. Herts. N.H S.,' Yol. YI, part 8, p. Ixx. 

 Comatrichia typhina (Poth.) Post. Ivel. — Hitcliin ; H. E. S. 



Lea. — Mangrove, near Luton. 

 C. Friesiana, De Bary. Colne. — Ayer's End ; A.E. G. Pedbourn. 



Lea. — Lilley. 

 Lamproderma irideum (Cki.) Mass. Ivel. — Hitchin; Miss G. L. 

 Trichia fallax, Pers. Colne. — Kensworth. Pedbourn. 

 T. fragilis (Sow.) Post. Colne. — Kensworth. Ayer's End ; A. 



E. G. Bricket Wood. 



