CONTENTS Vll 



PAGE 



k 



A New Species of PYRENOCHitXA. Malcolm Wilson, D.Sc, 



F.L.S i6i 



AgathOSMA TRICHOCARPA, N. SP. E. M. Holmes, P^L.S., F".B.S.E. 162 



The Past History of Monocotyledons, with Remarks on 



THEIR Origin. A. R. Horwood. {To be continued) i6ij 



Recent Additions to the Caithness Flora. Arthur Bennett, 



A.L.S 181 



Short Notes : 



Nierochloe odorata,Wah\. R. H. Corstorphine 183 



Alchemilla acutidetts,B\isQr. M'Taggart Cowan, Jr. 183 



Note on the Calluna-Mat Association of the Mountain Tops of 



the Northern Highlands. C. B. Crampton and M. Macgregor 183 

 British Rubi and environment, etc. E. G. Gilbert .184 



Cornus suecica^ Linn. Wm. Evans . . . .184 



Notes from Current Literature 185 



Reviews, Book Notices, etc. : — 



Prodromus Florce Britannicce. F.N.Williams. Part IX. 186 



The Shingle Beach as a Plant Habitat. F. W. Oliver. (" New 



Phytologist," No. 3, vol. xi.) 188 



A Monograph of the British Desmidiaceae. W. and G. S. West 190 

 Clare Island Survey. Part XIV. : Lichens. Miss Annie 



Lorrain Smith ......... 190 



A Short Flora of Cambridgeshire. A.H.Evans . . .191 



Fourth Part — October 19 12 



Morphological Notes. I. : The Inflorescences of the Ambrosi- 



aceas. K. von Goebel, Sc.D., LL.D. ...... 193 



Notes on some Mosses from the Three Lothians. James 



M'Andrew 202 



Saxifraga Hirculus, L., in Caithness, and its Dlstribution 



in the British Isles. Arthur Bennett, A.L.S. . . . 205 



A New Japanese Grateloupia. E. M. Holmes, F.L.S., F.B.S.E. 208 



Kenfig Burrows : An Ecological Study. M. Y. Orr . 209 



The Past History of Monocotyledons, with Remarks on 



their Origin. A. R. Horwood. {Concluded) . . .216 



