— 8 — 



Mr. Dixon spends over two pages in showing the proper relation between 

 Chaetomitrium Deplanchei Duby. and its allies, C. tahilense and C. Geheebii, 

 The conclusion is summed up in the following synonymy: 



1. Chae.omtirium Deplanchei (Besch.) Duby. 



Syn. Holoblepharum Deplanchei Besch. 

 Chaetomitrium Geheebii Broth, 



2. Chaetomitrium Deplanchei var. tahitense (SuU.) Dix. 



Syn. Holoblepharum tahitense Sull. 

 Chaetomitrium tahitense Mitt. 



Mr. Dixon records that "Paris, Ind. Ed. ii. 343., has several errors in his cita- 

 tion of this species." 



Gymnostomum oranicum Rehm., published by C. Mueller in Hedwigia, 

 XXXVIII, 112, as Weisia (Hymenostomum) oranica Rehm., Mr. Dixon proves 

 to have a peristome. This makes it not a Hymenostomum but a true Weisia. 

 It is separated from Weisia viridula by its dioicous inflorescence. But, should 

 it not now be written Weisia oranica (Rehm.) CM.? 



Ancectangium scabrum Broth., upon careful examination and comparison 

 with A. pusillum Mitt., in the description of which Mr. Mitten is proved to have 

 erred, Mr. Dixon shows to be a synonym of Amrctangium pusillum Mitt. 



On the other hand, Taxithelium Gottscheanum (Hpe.) Broth., which had been 

 by Hampe himself reduced to a synonym of T. capillipes Broth., as shown by his 

 correcting his own labels of his type, is by Mr. Dixon proved to be a good species, 

 and should stand. 



Under the caption " Hypnum scabrellum Lac. and its allies," Mr. Dixon 

 does a neat bit of investigating. The plant named is the Sematophyllum scab- 

 rellum of Par. Index for which Cardot had shown the prior name to be Semato- 

 phyllum lamprophyllum Mitt. The type plant was sterile. Max Fleischer issued 

 the species as Pungentella scabrella (Lac.) C. M., No. 389, Muse. Frond. Archip. 

 Ind. ser. VIII, from W. Java. Beccari's No. 37, "Crittogame di Borneo," 

 issued as H. scabrellum, fruiting, and the fruit of which was described by Hampe 

 under the name issued, is by Mr. Dixon pronounced not a Sematophyllum, but a 

 Trichosteleum; whether described or not Mr. Dixon leaves undecided. He 

 finally refers to a plant of C. H. Binstead, from Borneo which in Journ. Linn, 

 Soc. Bot. XLIII, 321, he had referred to S. lamprophyllum. This he now recog- 

 nizes as new, describing it under the name Sematophyllum decipiens Dix. 



Under Ceylonese Mosses the author first makes some interesting corrections 

 in his own paper on Rev. Binstead's Ceylonese mosses, the most interesting of 

 which is that of Trachyloma indicum Mitt. This plant Fleischer refers to T. 

 tahitense Besch. Along comes Theriot (see footnote, p. 78) and makes this Cey- 

 lonese plant a new species, T. Fleischeri ("Bull, de 1' Acad. Internationale de 

 Geogr. bot. 1910, p. 100"). 



Mr. Dixon's investigation into the merits of Bryum erythrocarpoides Hampe 

 & C. M. and Bryum erythrocarpoides Schimp. convinces him that they are one 

 species, so that the synonymy now stands, " — with further synonyms probably 

 to be added later — , " as follows: 



Bryum erythrocarpoides Hampe & C. M. 



