358 PRESH-WATER ALG^. [_CIdorosperm€^, 



place at the same season. In May 1848, however, I got it 

 ill o-reat abundance and beautv in the same rivulet attached 

 to pond-weed. The tufts, waving gracefully in the stream, 

 were two or three inches in length, and, when cautiously 

 handled, could be brought out entire. Aided by my youngest 

 daughter (who did not much like the wading, as the little 

 flounders were always pouncing upon her feet) I procured a 

 great number of specimens. 



D. nana is very like B. plumosa, but Mr. Hassall thinks 

 it quite different. 



3. Draparnaldia elongata, Hassall. 



This, which is regarded as a new species, was first found 

 by Major Martin in a quarry pool near Saltcoats. It was 

 got by D. L. in April 1849, in a slow-running stream 

 at the Turf Dyke coal-pit, Stevenston. It w^as lying at the 

 bottom, growing on w^eeds and stones, in inconsiderable 

 masses. The filaments were slender, and could not support 

 much of the mass when an attempt was made to lift it out 

 of the water. It bears a considerable likeness to I), nana, 

 though the green is lighter, and the filaments longer. 

 ]\Ir. Hassall says that it is rare ; that he has only twice got 

 it, — once growing in a horse-trough near Cheshunt. 



