6 



Amendments, is the legal name for a genus of ferns and as such 

 is enjoying wide usage. A careful scrutiny would doubtless 

 disclose other less obvious and less well-known violations of the 

 Vienna Rules. But these are minor details and, rules or no rules, 

 the nomenclature adopted by Professor Davis has the great 

 and saving virtue of being readily intelligible. 



Part I of Mme. Dr. A. Weber- van Bosse's "Liste des algues 

 du Siboga," which appeared in September last, includes the 

 Myxophyceae [Cyanophyceae] , Chlorophyceae, and Phaeophy- 

 ceae. It is based chiefly on specimens obtained in the Dutch 

 East Indies in 1 899-1 900 by the scientific expedition under the 

 leadership of Professor Max Weber, of the University of Amster- 

 dam, the husband of the talented authoress of the "Liste." 

 "Siboga" was the name of the Dutch cruiser used on that voyage 

 of exploration and the present paper is a part of one of the sixty- 

 six memoirs or monographs, for the most part already published, 

 in which the scientific results of this expedition are made known. 

 A part of the ground covered by the present "Liste" has been 

 included in more detail by the general monograph of the genus 

 Halimeda by Miss E. S. Barton (Mrs. A. Gepp), constituting 

 monograph 60 of the Siboga series, the general monograph* of 

 the family Codiaceae by A. and E. S. Gepp, constituting mono- 

 graph 62 of the series, and preliminary papers by Mme. Weber- 

 van Bosse on Dictyosphaeria, etc. In addition to the material 

 secured by the Siboga Expedition, the present "Liste" takes into 

 consideration also specimens "collected by Mme. Weber- van 

 Bosse in an earlier visit to the Dutch East Indies (in 1888) and 

 certain specimens sent to her by other collectors. The treat- 

 ment of the genera Boodlea, Cladophora, Cladophoropsis, Micro- 

 dictyon, Rhizoclonium, and Struvea, among the green algae, and 

 of Sargassum among the browns, has been contributed by Major 

 Th. Reinbold. His parts of the work are published in German, 

 while Mme. Weber's are in French. 



In the treatment of the Myxophyceae, written by Mme. 



* Reviewed in Torreya ii: 133-137. Je 1911. 



