58 
EXHIBITION MEETING j 1949 
1828 I observed several pi. of this sp. in England, growing 
luxuriantly on a manure-heaj) by the roadside a little way out 
of Hatherne near Loughboro’ in Leicestershire.” 
British Equiseta, by P. Taylor. 
British Charophyta, by G. 0. Allen. 
Specimens (dried) of Chara hispida L., C. aculeolata Knetz., 
Nitella translucens Agardh and Tolypella proliferu Leonh. were 
shown, and also living specimens of Chara globularis Thuill. 
and Nitella flexilis Agardh. IMuch enlarged models were also 
shown illustrating the inner and outer parts of an oogonium 
and the internal structure of an antheridium ; also slides illus- 
trating cyclosis in Nitella flexilis Agardh. 
The mounted specimens illustrated the three chief Charo- 
phyte genera, those selected being all large plants that can be 
recognised at sight. The living specimens mainly illustrated 
tlie forked branchlets and lack of cortex in Nitella, as con- 
trasted with the simple branchlets and the corticate character 
of Chara. 
2. Exhibits of mixed species. 
Aliens on arable ground at Froyle, North Hants., v.-c. 12, by C. 
Langridge. 
Specimens exhibited were: — ErodiUm Chium Willd., Medi- 
co go 7)iinima var. longiseta DC., M. laciniata var. hrachya- 
cantha Boiss., Xanthhini sphwstim L., Physalis ixocarpa Brot., 
Nicandra Physaloides L., Amaranthus Dinteri var. uncinatus 
ThelL, A. chlorostachys Willd., Chenopodium cristatum F. 
Muell., C. pumilio R. Br., xG. Bontei Aell. var. cristatijorme 
Aell. {C. carinatum R. Br. x C. cristatum (F. Muell.) F. Muell., 
Aiid.ropogoii Sorghum (L.) Brot., Eragrostis minor Host, and 
E. pilosa Beauv. 
Si)ecimens of xChenopodium Bontei were sent to and identi- 
fied by Dr Aellen at Basle. Mr Brenan writes: — ‘‘This ex- 
ceedingly interesting and remarkable plant is quite new to 
Britain.” 
These aliens appeared in a field where some ridge cucumbers 
were grown in 1947, where the ground was very weedy with a 
total of 68 species of weeds, the .soil being clay with flints on 
upper chalk, 600 feet above sea level. On enquiring of the 
farmer what had been put on the land, the reply was farmyard 
manure, Fisou’s potato manure, muriate of potash and castor 
meal. In 1948 broccoli was grown in the field and only three 
species of aliens were seen, Erodium Chium, Medicago laciniata 
and Amaranthus chlorostachys. In the summer of 1949 the 
ground was fallowed and cultivated several times and only 
.Amaranthus chlorostachys was seen. The discovery of these 
aliens was due to our gamekeeper, who reported to me that 
