pkoceedings of societies. 59 



Articles in Journals. — December, 1877. 



Bot. Zeituny. — F. Ludwig, "On tlie cleistogamy of Cullomia 

 (jrandifiora, Dougl.' — V. A. Poiilsen, ' The extra-floral nectary in 

 Batatas edulis.' — E. Askenasy, ' On the annual periods of buds.' 



Flora. — C. Kraus, ' On the molecular constitution of proto- 

 plasm in dividing and growing cells.' — F.Arnold, ' The Mosses 

 of the French Jura' (continued). — Nylander, 'Addenda nova ad 

 LichenographiaEuropseam ' (fifteennew species, eleven from Ii-eland.) 



Oesterr. Bot. Zeitschr. — E. Hackel, 'On a Grass with variable 

 lower pales.' — J. Freyn, ' Verhascuin tomentosum (F. Chaixii x sinu- 

 atum)' — M. Winkler, ' Two hybrid x)lants from Spain.' — A. Kerner, 

 'Distribution of Hungarian plants ' (continued). — W. Voss, Puccinia 

 Thiimeniana, n. s]^.' — L. Celakovsky, ' Further notes on 2Ielilotiis 

 macrorhizus, W. & K.' — H. Kempf, 'Flora of Vienna.' — K. v. 

 Uechtritz, ' Botanical notes.' — F. Antome, ' Botany of Vienna 

 Exhibition ' (continued). 



Bot. Notiser. — E. Ahrling, 'Examination mto the MSS. of 

 Linnaeus existing m Sweden.' — A. S. AVinslow, ' Salix- and P^^osa- 

 flora of Goteborg' — ' Swedish Botanical Literature for 1876.' 



ProcnO(ngs of Sotiettes. 



British Association for the Advancement of Science, 

 Plymouth, 1877. 



(Concluded from vol. xv., p. 318.) 



Aiigust 20. — J. Gwyn Jeffreys, Esq., F.E.S., President, in the 

 chair. — "On the structure of the pitcher of Cephalotus,'" by Prof . 

 Alexander Dickson. [A full abstract of this pa^Der is printed at 

 pp. 1-5.] — Prof. Dickson exhibited a specimen of Pogo7iatum aljnnum 

 with two capsules beneath a single calj^Dtra. There was some doubt, 

 however, whether the calyi^tra were really single. — " On structural 

 characters in relation to habitat in plants," by A. S. Wilson. This was 

 an attempt to show that the external characters of plants were caused 

 by their environment, especially as related to di-ought or humidity. 

 The paper caused much discussion. 



August 21. — The Kev. W. S. Symonds read an extract from 

 a letter from Prof. 0. Heer, Zurich, to Sir Joseph Hooker, 

 dated 14th Aug. 1877, on the plants collected by Capt. Feilden 

 in the Arctic Expedition. These are of the greatest interest, 

 and give us, in many directions, important conclusions. Of 

 Taxodium distichum tmocenkum not only do the twigs occur, but 

 also the male catkins, as at Cape Staratchin. There are two species 

 of Pinus (seeds and leaves), a leaf and fruit of Ulmus, leaf and bark 

 of Betula prisca and Torellia rigida. TorclUa is a highly remarkable 

 genus, of which Prof. Heer got from Spitzbergen only fragments of 



