6 
REGULATIONS OF THE CLUB. 
1. The object of the Botanical Exchange Club is to facilitate the exchange 
of dried specimens of British plants, especially of critical species and 
varieties. Any one wishing to become a member will be admitted on 
payment, to either of the Secretaries, of an annual subscription of Five 
Shillings, and on sending a parcel of dried plants in accordance with the 
subsequent rules. ITe will then be entitled to share in the distribution 
of specimens made in the early part of the year following that in which 
his subscription and parcel were sent. 
2. Specimens sent for distribution must be carefully dried ; must not 
exceed in size half a sheet of demy (16 by 10 inches) ; and must illus- 
trate the species they represent as completely as possible. Plants more 
than 16 inches long should be once or twice folded, if by so doing the 
roots can be preserved. (In the Cyperacece, Gramina, and smaller Ferns 
no specimens should be sent without roots, except in the case of very rare 
species, which might be in danger of extermination.) No plant must 
be sent that is not included in the list of desiderata for the current year, 
unless it be additional to those enumerated in the 6th edition of the 
‘ London Catalogue of British Plants,’ or be from an unrecorded station, 
or be a variety. But up to the date at which the list of desiderata for 
the year is issued the desiderata list of the preceding year remains in 
force, so that plants collected before the appearance of the annual de- 
siderata list will be received by the Club if they have been mentioned in 
the desiderata list of the previous year. 
3. Each specimen must have a label, bearing the number and name of 
the species as given in the 6th edition of the ‘ London Catalogue also 
