584 SUMMARY OF CURRENT RESEARCHES RELATING TO 



with the relationship between Rhodonielacese and other Orders, and con- 

 taining a synoptical view of the genera, as well as notes on many points 

 of interest. The general outline of the systematic treatment is the 

 same as that in Eugler and Prantl's Natiirlichen Pflanzenfamili en, which 

 was drawn up by Falkenberg, but in this work we have the details of 

 the system which till now has been only treated generally. The new 

 genera are founded as the result of definite views regarding the im- 

 portance of certain characters throughout the Order, occurring mainly 

 in the vegetative parts of the thallus. Since the classification of the 

 present work is based more on developmental characters than on mature 

 structure, it differs considerably from the Agardhian classification, and 

 is at variance with the conclusions of various other authors. 



Corallinae from Port Renfrew, Vancouver.* — A critical list by 

 K. Yendo, of nine species of Amphiroa, Cheilosporum, and Corallina, 

 with a synoptical key. Amphiroa tasmanica Sond. is reduced to a form 

 of A. cretacea Endl. ; the diagnosis of Amphiroa californica Decne is 

 considerably amplified and the species transferred to Cheilosporum ;. 

 Corallina frondescens Post, et Kupr. is also transferred to Cheilosporum, 

 and three new forms of it are described. Amplified diagnoses are also 

 given of Corallina planiuscula Kiitz. and C. officinalis var. chilensis 

 Kiitz., the former species being transferred to Cheilosporum. Three 

 new species are described,— Cheilosporum MacMillani, Corallina vancou- 

 veriensis in two forms, and C. aculeata. Details are given concerning 

 the habitat of all these plants at Port Renfrew, and the whole paper is 

 fully illustrated, in part by photographs. 



Japanese Corallinae.t— K. Yendo publishes a critical list of thirty- 

 two species of Corallinee from the coasts of northern and middle Japan. 

 Of these twenty are new, consisting of eight species of Amphiroa, three 

 of Cheilosporum, and nine of Corallina. Four new varieties are also de- 

 scribed, two of these being of already existing species. They are well 

 figured on seven plates, of which four are reproductions of photographs. 



Notes on some Fresh-water Algae. J — W. Schmidle here publishes 

 corrections of what he considers errors of nomenclature in works of 

 Chodat and others. He also describes several new species : Stipitococcus 

 Lauterbornei, Ashenasyella chlamydopus new genus and species, Cepha- 

 leuros Henningsii, Schizothrix guadeloupeana, and Oodesmus Doederleinii 

 new genus and species. Ashenasyella chlamydopus had been already 

 seen and figured by Hermann, as Schmidle adds in a final note. A 

 diagnosis is given of Lemmermann's genus Tetrasporopsis, till now a 

 nomen nudum. 



Fresh-water Alg33 of Ceylon.§— William West and George S. West 

 publish a list of 395 fresh-water algae, including 49 diatoms, collected 

 in Ceylon by Mr. Freeman. Other species than those recorded were 

 also observed, but the specimens were too fragmentary to identify. A new 

 genus, Desmatractum, is described, to receive one species founded on a 

 single specimen. It is most nearly allied to Bhaphidium in the family 



* Minnesota Bot. Stud., ser. ii. xl. (1902) pp. 711-22 (6 pis.). 



+ Journ. Coll. Sci. Imp. Univ. Tokyo, xii. part 2, article 3 (1902) 38 pp. (7 pis.). 



% Hedwigia, xli. (1902) pp. 150-63 (2 figs, in text). 



§ Trans. Linn. Soc., 2nd ser. (Rot.), vi. (1902) pp. 123-215 (6 pis.). 



