1006 



1. On the Difference between the Robertsonian Saxifrages of Ire- 

 land, and those of the Pyrenees. By Mr. C. C. Babington, M.A., 

 F.L.S., &c. In this paper the author pointed out the differences 

 which he had obseiTed between the Irish species of Saxifraga refer- 

 rible to Ha worth's genus Robertsonia, and the corresponding plants 

 of the Pyrenees. In a paper contained in the ' Annals of Natural 

 History,' he had already shown that the Pyrenean S. umbrosa, the ty- 

 pical plant of the group, differs from the Irish form ; but was not then 

 aware that precisely the same differences existed between the S. Geum 

 and S. hirsuta of these two countries. " The differences referred to," 

 observes Mr. Babington, "are found in the form of the margin of the 

 leaves, which may be correctly denominated ' crenate ' in the Pyre- 

 nean plants, but to which the terms ^acutely crenate^ '■serrate^ or 

 '■dentate^ must be applied when the Irish specimens are described." 

 The paper was accompanied by drawings of the leaves of the spe- 

 cies under consideration. 



2. Contributions to British Jungermanniae. By Dr. Taylor, Dun- 

 kerron. Communicated by Mr. W. Gourlie, jun. Glasgow. In this 

 paper six species of Jungermannia, new to the British Flora, are de- 

 scribed, viz., J. nimbosa, Taylor, MS., J. curta, Marthis, J. Thuja, 

 Dicks., J. rivularis, Nees, J. Dillenii and J. Aquilegia, Taylor, MSS., 

 with a minute diagnosis of each species. 



3. On the genus Staurastrum, (Desmidieae). By Mr. John Ralfs, 

 Penzance. In this paper, which is a continuation of a series on the 

 Desmidieae, fourteen species are described, with an analysis of the 

 genus, and drawings exhibiting the appearance of the frond in each 

 species described, both in a front and end view. 



4. A second paper by Mr. Babington was read — " On some British 

 species of the genus CEnanthe." This communication was drawn up 

 after the perusal of Mr. Ball's paper on the same subject, read before 

 the Society at last meeting. The author agrees with that gentleman 

 in believing that the true GE. pimpinelloides of Linnaeus is indigenous 

 to England, he having received specimens of a plant nearly agreeing 

 with Mr. Ball's description, from the Rev. W. L. P. Garnons, which 

 were gathered in a " marsh between Weymouth and Portland Island." 

 In reference to the other species, viz., CE. peucedanifolia, Smith, and 

 CE. silaifolia, Bieh., there seems still to exist considerable difficulty, 

 which the author has not yet been able satisfactorily to explain, from 

 the want of authentic specimens of Bieberstein's plant. 



5. An additional note on the monstrosity of the Pistil in Primula 

 vulgaris. By Mr. C. C. Babington. In the account given of this 



