Belfry Bulletin Number 015

Page 1

Belfry Bulletin Vol. 2 No. 15

BRISTOL EXPLORATION CLUB

September 1948

List of Members No.6 D.G. Brown S. Treasure J.W. Ifold A.J. Needs C. Bennett Miss M. Thomas J. Long R.A. Ifold E.O. Howell M. Hannam

12. Egerton Road, Bath Somt. Stoke Lane Poultry Farm, Stoke St. Michael, Bath, Somt. Leigh House, Nempett, Thrubwell, Chew Stoke Somt. 63, Callington Road, Brislington, Bristol 23, Uplands Road, Fishponds, Bristol 6, Hill Crest, Knowle, Bristol 24, Bannerman Road, Easton, Bristol 32, Cogberg Road, Montpellier, Bristol 4, Compton Drive, Sea Mills Park, Bristol. 9. 14 Vivian Terrace, Clifton, Bristol.

************************** NOTES ON THE COLLECTING OF CAVE FLORA. (Extracted from the American National Speleological Societie’s ‘Bulletin’ No.6 p.48, and submitted by D.A. Coase) Cave Flora may contain representatives of the four major groups of plants, viz: - Thallophytes (Fungi & allies); Bryophytes (Mossess & their allies); Pteriodophytes (Ferns & their allies) and Spermatophytes (Flowering Plants). Each of these groups represents a special problem in collecting. The THALLOPHYTES, in this group are the Bacteria, Algae and Fungi. You will probably not see Bacteria and for the time being it would be best to disregard them. Algae should be collected in screw top phial of water, preferably the water in which they are found growing. Fungi will be plants most commonly found in caves, especially in zones of total darkness. The fleshy fruiting bodies of many fungi such as mushrooms, etc., should be collected in bottles of weak 5pc formaldehyde solution. Woody specimens which will not dry out too much may be collected in boxes or similar containers. Filamentous fungi, i.e. the mould like forms should be scraped into sterile screw top containers. The BRYOPHYTES contain liverwort and mosses. They are most likely to be found near cave entrances band in zones of partial darkness. LIVERWORTS are usually quite succulent and should be collected in 5pc formaldehyde solution. MOSSES will revive sufficiently to be recognised even after having dried out, so they may be collected in match-boxes or similar containers. When possible collect a small clump of the moss including the organic upon which it is growing. The PTERIDOPHYTES include the FERNS and their allies. These too will most likely be found near the entrance and in the areas of partial darkness. Probably the best way to collect these plants is to spread the fronds out flat between the pages of a note book if the plants are small enough. Larger plants may be brought out of the cave and spread out between folded newspapers or the pages of an old book to dry. When the plants are abundant, collect the whole plant, root and all. When only a few are present, collect only a single frond. Be sure to collect the frond that has the brown fruiting bodies on the undersides or margins of the fronds whenever they are present. The last group the SPERMATOPHYTES, contains the seed plants. Whenever possible the whole plant should be collected; when this is not possible, collect a part or branch of the plant with several leaves. These specimens wil1 probably be very succulent and fragile, so for the time being it would seen best to preserve them in a 5 pc formaldehyde or a 30 pc alcohol solution.


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