SHORT NOTES 21 



unbranched stem ; but these exceptionally tall examples are graceful 

 in the extreme. — Miller Christy. 



JuNCTJS ACUTUS L. : A CoRRECTiox. Mr. Arthur Bennett writes 

 to call attention to the improbability of the record of this species 

 from an inland locality such as Cornard, given by me from the 

 Andrews Herbarium (Journ. Bot. 1918, 351). The plant is labelled 

 by Andrews " Juneus acutus E. S. 8. 482. 3," and by Hemsted 

 *' Juneus inflexus." In my transcript of W. A. Clarke's determinations^ 

 of species in the Dillenian Synopsis this species, " Juneus acutus Ger, 

 31, acutus vulgaris Park. 1193, etc. . . . Common hard Ritsh,^'' is 

 identified as J. cjlaucus, which the specimen in Andrews's herbarium 

 certainly is. I am, therefore, at a loss to explain how I came tO' 

 enter it as J. acutus L. — Gr. S. Boflger. 



REVIEW. 



A Monograph of British Lichens : A Descrij^tive Catalogue of the 

 Species in the Department of Botany, British Museum. By 

 Anjvie LoRRAiiS^ Smith, F.L.S., Acting Assistant, Department 

 of Botan3\ Printed by order of the Trustees of the British 

 Museum. Part I., Second Edition, pp. 519 : 71 plates and 11 

 figures in text. Price £1 10s. 



The present volume, which has been awaited with keen interest 

 by lichenologists, brings to completion the Monograph of British 

 Lichens — re-written, re-arranged and enlarged by Miss A. Lon-aii? 

 Smith ; it is thus practically an independent work. The Mono- 

 graph, originally planned by the late J. M. Crombie, Avas partly 

 prepared during his lifetime, and Part I. was published in 1894, under 

 the above title. After a considerable interval. Part II. following as- 

 far as possible the lines of the Avork previously carried out by 

 Crombie, was prepared by Miss Smith and issued in 1911. The 

 publication of Part II. rendered a second edition of the earlier- 

 volume an urgent necessity, for it was at once fully recognised that 

 the value and usefulness of the Avork Avould be greatly enhaaeed 

 if brought uniformly into line Avith modern vieAvs. 



A short and lucid introduction of seventeen pages is arranged 

 under the folloAving sections : — The Lichen Plant, Morphology, 

 Vegetative Structures peculiar to the Lichen Thallus, Keproductive 

 Organs, Physiology, Ecology and Distribution, Economic Uses of 

 Lichens, Phylogeny and Classification. In the first section under 

 the sub-head " Algal Elements of the Thallus," a tabulated statement 

 is given as folloAvs : — 



" 2. Chlorophycece associated with Archilichenes : — 

 '^ Protococcus {Ct/stococcus, Pleurococcus) and Palmella in the 

 greater number of the larger lichens and in many crustaceous 

 genera." 



AVith the existing diverse vicAvs ^^f Avriters respecting the algal 

 symbiont of many lichens, it is undoubtedly preferable not to specify 

 particularly the gonidium variously referred to as Cystococcus, 

 Protococcws, or Pleurococcus -. there is- -reason to believe- that Pro^o- 



