RECENT LITERATURE ON MARINE ALG^. 229 



the time of Harvey onwards, Major Keinbold in this last paper is 

 able to describe two new species, Cladophora confoniiis and Deles- 

 seria Lacepedeana, as well as a new form of Ceramium pubemlum, 

 which he calls spiiwsissima. 



The receipt of further specimens of GloiophylUs Engelharti has 

 enabled Major Reinbold to draw up a more complete diagnosis 

 of this plant, which was described in the first part of this list 

 [1. c.) ; and Ectocarpus Sandrianus is recorded, which has hitherto 

 only been known from European waters. An interesting com- 

 parison is drawn between the vegetative structure of Erythroclonium 

 Mulleri and that of Rhabdonia verticillata, a comparison which will 

 be found most useful by anyone attempting to name young and 

 sterile plants of these puzzling species. 



Thamnocarpus glomuliferus has again been found, and again 

 without fruit. Neither the cystocarps nor tetraspores of this alga 

 have ever been seen, though the plant is well represented in the 

 Bracebridge Wilson Herbarium, now in the British Museum, and 

 specimens of it have been sent to the same institution from South 

 Africa. It is strange that so many specimens, though collected in 

 different localities and at different times of the year, should all be 

 sterile. 



A contribution to our knowledge of the genus Bangla, '' Ueber 

 Bangia pumila Aresch.," by Dr. 0. V. Darbishire, is pubUshed by 

 the kommission zur wissenschaftl. Untersuch. d. deutschen Meere, 

 Bd. iii. Heft 2. Tthe author rightly says this genus is in much 

 need of revision, a work which can only be undertaken on fresh 

 material ; and it is to be hoped that Dr. Darbishire may see his way 

 to undertaking this work himself. The species dealt with in the 

 present paper, Bangia pumila Aresch., has been described and 

 issued in exsiccate under other specific names, as is shown by the 

 list of synonymy which follows the diagnosis of the plant. It is 

 found on the eastern shores of the Baltic, in brackish or salt 

 water, and Dr. Darbishire has been able to make a study of the 

 plant in its natural conditions. He figures the vegetative and 

 fruiting portions of the thallus in various stages, and shows the 

 differences between this and other nearly allied species. 



A paper '* On the Classification of the Tilopteridacem " (Bristol 

 Naturahsts' Society's Proceedings, vol. viii. pt. ii. 1896-97) em- 

 bodies the result of an investigation on this order by Mr. George 

 Brebner. The author has made a careful study of the genera Haplo- 

 spora and Scaphospora, specimens of which he obtained at Cumbrae. 

 Though Dr. Reinke had suggested the identity of R. globosa and 

 S. speciosa, the question remained unsolved until Mr. Brebner was 

 so fortunate as to find a plant of H. globosa bearing sporangia, 

 oogonia, and antheridia. This united the two genera in an un- 

 mistakable manner, and Scaphospora speciosa is sunk into Haplo- 

 sjmra globo'ia, which has priority. Mr. Brebner draws up a modified 

 diagnosis of the genus Haplospora and the species H. globosa. 

 H. Vidovickii Born., which is made the foundation of a new genus 



