22 J. SAUNDEES NOTES ON THE CHAEACE^. 



a large growth of CJiara vulgaris, whilst there was no trace of the 

 former species. In 1882 and 1883 N. upaca was plentiful in 

 the River Lea at Biscot, but since that date no trace of it has 

 been seen, although C. vulgaris has been fairly regular in its 

 appearance until 1895, when that also disappeared. In January, 

 1896, no stonewort of any kind was growing in that station. 



Tolypella glomerata grew plentifully in a pond at Leagrave, 

 called Icknield Hole, in 1885, but has not been found there since, 

 although carefully sought for. Not long previous to its appearance 

 in 1885 the pond had been cleaned out, which gave the plant an 

 opportunity to develop. The pool is now filled with a BatracMum 

 and Potamogeton densus. T. glomerata also grew in abundance 

 iu a large tank at Wellbury, Herts, in 1888, but has not been 

 observed there since, its place having been occupied by Chara 

 Tidgaris, which has grown there for several seasons since 1888. 



Tolypella intricata was first observed in the South Midlands 

 in 1883. In March of that year it was noticed in a small pool, 

 about three yards iu diameter, at Little 13 ramingham. In the 

 following April, Mr. H. Groves, in company with myself, visited 

 the spot, when it was seen that the pond was nearly filled with 

 the plant, which was in fine condition. Mr. Groves remarked 

 when seeing it that he would travel 100 miles any day to observe 

 such a sight. Specimens were collected, but a large quantity was 

 left to deposit its fruit. In the autumn of the same year the pool 

 was dried up through drought, the Tolypella disappearing and 

 leaving no visible trace of its existence. In the following year 

 (1884) it failed to appear. The spot was visited every few weeks 

 from early in the spring to late in the autumn, and in so small an 

 area it could not have escaped detection had it been present. 

 In 1885 it was fairly plentiful; in 1886 and 1887 it grew in 

 small quantity only; and during the autumn of 1888 it was 

 in fair abundance, at which period it was seen to be in fine fruit, 

 although spring is the normal time for this function. It reappeared 

 in the spring and summer of 1889, but had disappeared by the 

 1st of September of that year; in 1890 it was in fine condition 

 during the spring, but gradually dwindled away in the following 

 autumn. For the next four years we have no notes as to its 

 occurrence in this station, although it was visited by us on 

 several occasions during this period. In April, 1895, it was seen 

 in small quantity, but it is absent at the present time (Jan. 1896). 



The foregoing notes are given in detail, as they describe the first 

 British records of the occurrence of Tolypella intricata for two or 

 more successive seasons in the same station. 



In another spot, about two miles north of Bramingham, is a pool 

 about 15 feet by 3 feet in dimensions, situate in Sundon Wood, 

 In this small area there have been fine growths of T. intricata 

 in the years 1891 to 1895. Specimens have been preserved of 

 gatherings made 4th April, 1891; 22ud May, 1892; 16th April, 

 189;5 ; 15th April, 1894 ; and 14th April, 1895. 



At Totternhoe, in connection with the enclosure of the common 



