1008 



Mr. Andrews observed that a variety of opinions had aheady been 

 offered and entertained as to the species of Trichomanes found in the 

 south-west of Ireland. The Killarney form of the frond was triangu- 

 lar, the lowest pinnae being the longest, and tripinnated. The plants 

 found in Glouin Caragh had the fronds lanceolate, the lowest pinnae 

 being the shortest, and bipinnated (var. Andrewsii, Newm.) The 

 winging of the involucre also has been noticed as peculiar. It was of 

 much interest to hear of such a discovery in so bleak and unsheltered 

 a position as Valentia Island presented ; and he thought the meeting 

 with Hymenophyllum Tunbridgense there equally interesting. Mr. 

 Andrews said that he first found the Trichomanes at Mount Eagle, 

 west of Dingle, a very rocky and barren locality. No doubt trees 

 flourished, at one period, both at Mount Eagle and at Valentia ; and 

 Trichomanes might then have grown abundantly in those places. 

 The Hon. Dayrolles De Moleyns had also discovered a station for 

 Trichomanes near Dingle.* 



The Phytological Club, 

 {In connexion with the Pharmaceutical Society). 



June 6, 1853. — The President in the chair. 



The Curators reported the receipt of several parcels of plants. 



Structure of Galls. 



Mr. Muskett presented a translation of a paper by M. de Lacaze 

 Duthiers, intituled 'Hesearches upon the Structure of Galls,' published 

 in the * Comptes Rendus,' April 4, 1853, 



The author commences by stating that former writers upon the 

 vegetable pathological productions named galls, have only considered 

 their forms, the plants upon which they are found, and the insects 

 which cause them. Their structure and development have been com- 

 pletely neglected. 



Galls are generally considered as purely cellular masses. This is 

 an error, for they contain the principal elements and tissues which 

 enter into the composition of plants. They may be divided into 



* In Newman's ' Biilish Ferns,' p. 309, it is recorded that this fern had hilely 

 been planted abundantly in Valentia Island. — E. N. 



