CONTENTS OF VOL. XXVI. 



Presidential Address. Some Modern Aspects of Applied Botany. 



By A. W. Borthwick, D.Sc. . ..... 1 



Remarks on Some Aquatic Forms and Aquatic Species of the British 



Flora. By Arthur Bennett, A.L.S 21 



Alien Plants. By James Fraser 28 



Carex helvola, Blytt. By Arthur Bennett. A.L.S 30 



Ecological Terminology as applied to Marine Algae. By X. Miller 



Johnson, B.Sc, F.L.S 32 



Anthelia : an Arctic-Alpine Plant Association. By W. G. Smith, 



B.Sc, Ph.D 36 



Mosses from the Western Highlands. By .James Stirton. M.D., F.L.S. 44 



Scottish Forms of Sparganium. By Arthur Bennett, A.L.S. . . 49 

 New or Imperfectly Described Species of Acacia from Western 



Australia. By Alex. Morrison ....... 51 



Note on Victoria regia, Lindl. By Professor Giovanni Arcangoli . 56 



Recent Additions to the Caithness Flora. By Arthur Bennett, A.L.S. 58 

 Morphological Notes. I. The Inflorescences of the Ambrosiaceae. 



By K. von Goebel, Sc.D., LL.D. (Plate I.) .... 60 

 Notes on Some Mosses from the Three Lothians. By James 



M' Andrew 70 



Saxifraga HircuJvs, L., in Caithness, and its Distribution in the 



British Isles. By Arthur Bennett, A.L.S. .... 73 



A New Species of Pyrenochaeta. By Malcolm Wilson, D.Sc., F.L.S. . 75 



Agatho*ma Irichocarpi, n. sp. By E. M. Holmes, F.L.S. (Plate II.) 76 



A New .Japanese Grateloupia. By E. M. Holmes. F.L.S. (Plate III.) 78 



Kenfig Burrows : An Ecological Study. By M. Y. Orr ... 79 

 Note on Argania Sideroxylon, Roem. et Schnlt., the Argan Tree of 



Morocco. By Symington Grieve ...... 88 



The Scottish Alpine Botanical Club Excursion, 1911. By Alexander 



Cowan ........... 91 



Short Notes : — 



Barbula gracilis, Schwaeg., new to Scotland. By Margaret 



Corstorphine ......... 95 



Centuncidus minimus, L., in Wigtownshire. By James Fraser . 95 



New Records for Scottish Vice-counties. By .James M'AndreW . 95 



Potamogeton praelongus, Wulf., in Orkney. By Arthur Bennett . 96 



Juncus alfinus, Vill., in Kirkcudbright. By Arthur Bennett . 96 



