204 PBOCEEDINGS OP SOCIETIES. ' 



tions. But the remarkable character consists in the fructification, which 

 is a large, terminal, pyriform, green (!) spore, surrounded by a wide 

 gelatinous limbus. In Plate XIII. C, Fig. 1, are represented some of the 

 threads as they lie in the stratum, and Fig. 2, some separated, with a 

 spore more highly magnified. 



It is hoped that this short notice may direct the attention of obser- 

 vers to these curious littoral Algae, one or other of which, and, perhaps, 

 some new species not yet noticed, may be found on most of our rocky 

 shores. The cystocarpic fruit of all the genera of the group, namely, 

 Actinococcus, Petrocelis, Cruoria, and Contarinia, which differ from each 

 other in the evolution of their tetraspores, remains to be discovered. I 

 collected a species in Australia, which I have called Cruoria (?) australis, 

 and which has cystocarps ; but until the cystocarps be found in the ori- 

 ginally described Cruoriae, as well as in the allied genera, it would be 

 premature to say whether the Australian species be a congener or not, 

 as unfortunately its tetraspores are desiderata. 



FRIDAY EVENING, JUNE 19, 1857. 



W. H. Haevey, M. D., V. P., in the Chair. 



The Minutes of the previous Meeting having been read, were approved 

 of, and signed by the Chairman. 



The following Donations were acknowledged, and the best thanks of 

 the Association ordered to be given to the donors : — 



" Dipterologiae Italicae Prodromus." Vol. I. By C. Rondani. 



Other Essays on Dipterous and other Insects. By the same. 



" Flora dei Foraggi Spontanei e Coltivati, dei Stati Parmensi." 

 Fascicoli 1° e 2°. By Dr. G. Cocconi. 



" Delectus seminium in Horto Botanico R. Univ. Parmensis," A. D. 

 1856. 



" Cenni sul Muses Civico de Milano, ed Indice sistematico dei Bettili 

 ed Amfibi esposti nel Medesimo." By Prof. G. Jan. 



" Pallavicinia, Nuovo Genere di Piante Crocifere." By Dr. G. 

 Cocconi. 



"La Saggnia da Zucehero." By Prof. G. Passerine. 



The above presented by Dr. Camillo Rondani, Professor in the Royal 

 Athenaeum, Parma. 



"Linna3iSystema Naturae." EditiolO ma . From A. H. Haliday, V.P. 



" The Natural History Review" for January and April, 1857. From 

 the Editors. 



"A Catalogue of the Zoophytes of Northumberland and Durham." 

 By Joshua Alder, Corresponding Member. 



" Proceedings of the Dublin Geological Society." A complete set of 

 the seven volumes. From the Council of the Society. 



