BOTANY 



nothamnus stelliger, the county list can scarcely be regarded as a rich 

 one. 



SUMMARY OF GENERA AND SPECIES 



CHARA TOLYPELLA 



Chara fragilis, Desv. Tolypella intricata, Leonh. 



aspera, Willd. NITELLA 



contraria, Kuetz. Nitella gracilis, Agardh 



hispida, L. translucens, Agardh 



vulgaris, L. flexilis, Agardh 

 LYCHNOTHAMNUS opaca, Agardh 



Lychnothamnus stelliger, Braun. 



FRESHWATER ALG^E 



The county of Surrey is very rich in algae. The best gatherings can 

 be obtained from the larger commons, the one at Thursley yielding the 

 greater number of species. Puttenham Common is also very productive, 

 especially General's Pond. Wherever the small carnivorous bladderwort 

 (Utricularia minor) occurs a number of interesting algae are sure to be met 

 with, and this interesting plant occurred on both these commons accom- 

 panied by submerged species of bog moss (Sphagnum), which latter also 

 are good indicators of the presence of small species of algas. On 

 Thursley Common there is also an abundance of the fine richly-coloured 

 julaceous moss (Hypnum scorpioides) , which always indicates that algas will 

 be prolific. A rather uncommon sedge (Rbyncospora fusca) also occurs 

 on this common and the bog water surrounding this species never fails to 

 be productive of algas. 



Among other localities which are well worth visiting by reason of 

 their richness in these interesting plants are : Barnes Common, Bisley 

 Common, Bolder Mere, Brockham Green to Betchworth, Chobham Com- 

 mon and the neighbourhood, Ditton Marsh, Frensham (Devil's Jumps, bog 

 by river Wey, the Great Pond and the Little Pond), Esher and Esher 

 West-end Commons, Dorking, Earlswood Common, Felbridge, Hack- 

 bridge, Mitcham Common and Grove, Putney Heath and Roehampton 

 Lane, pond on Ranmore Common, Richmond Park, Wandsworth 

 Common, Wimbledon Common, the canal at Woking, Whitemoor 

 Common, Worplesdon, Witley Common, and in the south-east Blindley 

 Heath, Crowhurst, Frogit Heath and Mill Pond east of Chapel Wood. 

 The bluish-green algae (Myxopbyceee) are not represented as well as they 

 would be if the county possessed some rocky hills, nevertheless the county 

 is one of the richest in England. 



The reader must bear in mind that the use of the microscope is 

 absolutely essential to the discovery even as well as to the determination 

 of all but an extremely few of these algae. They are exceedingly pretty 

 objects and will amply repay the attention of any investigator. 



Those in the following list, including a new genus to science and 

 twenty species and varieties also new to science no less than fifty-nine 

 in number were recorded for the first time in the British Isles from 



57 



