278 SUMMARY OF CURRENT RESEARCHES RELATING TO 



lias been recorded as occurring in Europe, and which he has qow suc- 

 ceeded in finding in Sussex. Be came upon a few old, but perfect, 

 perianths which place the identification beyond dispute. He supplies a 



diagnosis of the species and adds critical notes. The British species of 

 the section Mirrolcpiilnxiu : L. setacea, L. trichoclados and L. sylvatica, 

 are very closely allied, and might be regarded as three fairly constant 

 races of one species adapted to their several environments, which are 

 respectively Sphagnum bogs, peat, and sandy ground or rocks. He 

 indicates points of structure by which the three species may be separated ; 

 and believes that all Sussex plants of L. trichoclados will he found to 

 belong to L. sylvatica ; but, in the absence of perianths, proof is 

 difficult. 



Mosses of West Highlands.* — J. Stirton discusses the presence of 

 certain globular hyaline cells observed in leaf-sections of a specimen of 

 Leucobryum albidum from Loch Tay. These cells measure 16-25 ju., 

 and were observed within the large quadrate cells. He also discusses 

 the structure of two mosses determined by Fergusson years ago as 

 Andresea obovata Thed., from Glen Callater, and Qrimmia robusta Ferg. 

 The former he regards as having closer affinities with A. obovata than 

 with A. alpina, to which it has been usually referred as a mere stunted 

 form. As to Qrimmia robusta, placed by some bryologists under 

 67. Schultzii Schimp. as a mere variety, he points out the differences of 

 structure which lead him to consider G. robusta to be a well-defined 

 species. Finally, he gives a diagnosis of Bryum perpusillum, a new 

 species from Gairlocll, one of a group of minute species discovered by 

 himself — the others being B. Stirtoni Schimp., B. leptaleum Stirt., 

 B. tenerrimum Stirt., B. elegantulum Stirt. None of the five has yet 

 been found in fruit. 



Critical Revision of Carl Miiller's Moss Genera. f — M. Fleischer 

 has undertaken the task of working out the Carl Miiller herbarium of 

 mosses according to modern views. In the present paper he publishes a 

 critical list, containing two opposite rows of names. On the left are the 

 names of species of Cryphsea, Beudropogon and some Ahia found in the 

 herbarium ; on the right are the modern names, or the new combina- 

 tions made by the author. Of the Miiller Cryphasae, numbering seventy- 

 two, twenty-seven species are here transferred to eight other genera, two 

 of these being new. One of them, SphserothecieUq, is allied to Pilo- 

 trichopsis, but differs from it in habit and also by having a globular 

 sporogonium ivith large many-celled spores. The species S. sphserocarpa 

 Fleischer comes from Sikkim, and according to Fleischer the genus 

 Cryphsea does not occur in the Himalayas. 



* Glasgow Naturalist, vi. (1914) pp 33-9. 



t Hedwigia, lv. (1914) pp. 230-5. See also Bot. Ceutralbl., cxsviii. (1915) p. 51. 



