1900.] Proceedings of Irish Societies. 99 



since, as by an oversight it is not included in Mr. Massee's book, and it 

 seemed quite unknown to the members of the British Mj'cological 

 Association to whom it was exhibited in 1898. It agrees exactly with 

 Corda's figure {/cones Fimgonuii). 



Mr. M'Ardi^E exhibited Lepidozia setacea, Web., var. serhilarioides, 

 Hubeu., which he found on a damp bank at Lough Adoon, Co. Kerry, in 

 September, 1897. From the type it differs in the much elongated stem, 

 longer leaves more distantly placed and of a paler colour. The name 

 was given to this curious form by Hubener, on account of the resemblance 

 it bears to one of the plant-like Hydroids. It is an addition to the 

 cryptogamic flora of Ireland. It is known to occur in Germany and 

 North America. 



Mr. H. J. Seymour exhibited a photo-micrographic apparatus designed 

 and made by him, and adapted especially for use with low magnifying 

 powers such as are wanted in photographing rock-sections, for which 

 purpose it has been found by him to give excellent results. It consists 

 of a heavy base of wood about three feet by nine inches, and two and a 

 half inches thick.. On this two platforms carrying a microscope and a 

 camera rCvSpectively slide between grooved runners. An incandescent 

 mantle gas-lamp furnishes the illuminating power, the light being 

 condensed by a small lens on to the micro-slide. A novel feature is an 

 extremely simple arrangement for focussing, carried out by a suitable 

 combination of brass rods and binding screws and clamps, such as are 

 used for making electrical connections. The apparatus was shown in 

 working order and explained by the exhibitor. 



Mr. F. M. SEi<iyENS showed a preparation of the common moss 

 Funaria hygrometrica. 



March i. — The Club met at Leinster House. 



Mr. Greenwood Pim (President), showed a specimen of Marasmiiis 

 Hudsoni, which was mounted in glycerine, and had been in his possession 

 since 1875, This is a minute agaric, not uncommon on dead holly 

 leaves ; the pileus not exceeding in size the head of an entomological 

 pin, and beset with long stiff bristles. 



Mr. M'Ardi,E exhibited Scapania plajiifolia, Hook.^ which was collected 

 on a rocky ledge at 1,500 feet, at Moidart, in Scotland, by Mr. M 'Vicar, 

 in 1898. Sir William Hooker, in his " British Jungermanise," reports 

 the plant to have been found by Dr. Taylor on the summit of Mount 

 Brandon, Co. Kerry, in 1813. Its rediscovery in Ireland would be of 

 botanical importance. It differs from all other ScapanicR in the beautiful 

 cell-structure and the dentato-ciliate margins of the leaves, which are in 

 two rows ; the upper, or smaller row, which represent the lobule in other 

 Scapanice, is quite separate in S. planifolia from the large row of leaves on 

 the underside of the stem ; in this way it bears considerable resemblance 

 to some genera of mosses, as Hookeria, Hypopterygium, &c. 



Mr. H. SivYMOUR showed a simple method of drawing micro-slides by 

 means of a grating formed of a series of intersecting parallel sets of fine 

 lines. The method of making the grating, which consisted of a circular 

 disc of cardboard, the lines being single fibres of silk, was demonstrated. 



