FLAGELLATES A]S*D ALa.E OF THE EIEMINGILVM DISTRICT 31 



These are tlie only records made, but the species is really rather 

 common wherever Lemna trisulca abovinds. 



C paradoxum (Klebs) G. 8. West. 



WK. In soil, Sutton Coldtleld. sT. In soil, Himley Park. See 

 Bristol, Journ. Linn. Soc, Bot. xlv. 3Ul, 1920. 



G. FacciolcB (Borzi) Bristol. 10. 



ST. Great Barr Park. See also Bristol, /. c. supra. 



DiCEANOCHiETE Hieron. 



D. reniformh Hieron var. Icevis Hodgetts in New Phytol. 191G, 

 XV. 108. 4. 



WK. Harborne, in a small pond, epiphytic on Ranunculus aqua- 

 tills, etc. 



[The small pond in which this alga has occurred regularly for the 

 last five years dries up completely in the summer months, the alga 

 perennating upon dead shrivelled leaves of Callitriche^ etc., in a 

 resting condition. In this state the gelatinous sheath of the cells is 

 well developed, being thicker than in ordinary individuals growing 

 under water ; doubtless it is this thick gelatinous sheath which 

 enables the alga to resist desiccation. These resting-cells possess 

 no seta, or at any rate only the short fragmentary remains of the 

 base of a seta. In other respects they are normal in appearance, and 

 have a bright green chloroplast which is packed with, minute starch.- 

 grains. — W. J. H.] 



ClIARACIUM A. Br. 



a Sicholdi A. Br. 2, 4, 10. 



WK. Berkswell. ws. King's Norton ; Quinton. 



C. longipes A. Br. 4, 10, 11. 



ws. Pond near Hawkesley Hall, King's Norton. 



C. ornithoceyplialum A. Br. 5. 



WK. Lapworth. 



C. tenue Herm. 2, 5. 



WK. Coleshill. ws. Moat at Harvington Hall. 



C. Pringsheimii A. Br. 3. 



ws. [King's Norton, W. J. H.] 



Hydrodicttace^. 

 Pediastrum Meyen. 



P. Boryanum (Turp.) Menegh. 1-12. 



Very common and generally distributed. 

 Var. granulatum Kiitz. 5. 



ST. No other record than Great Barr Park was made, but it 

 is really almost as common as the type. 



P. \luplex Meyen. 1-12. 



Common and generally distributed. 

 Var. clathratum A. Br. 4-12. 



WK. In the plankton, Bracebridge and Blackroot Pools, Sutton 

 Park ; Olton Heservoir. 



