— 50— 



Hypnum asprelluvi Schwregr., Suppl. i^ : 246 is a slender 

 form of BrachytheciuDi plitmosum (Sw.) B. & S. 



Hypmnii cJirysostojniDn Rich, is a form of Brachythecium 

 plumosum. 



H. fragile Brid. is a form of H. chrysophyl/tan Brid. 

 Hypnum polyrhizon BriJ. is a form of Brachythecium plu- 

 mosum. 



The type of Hyp/u/m stoloniferuin Hook, is the form known 

 as var. Cardoti {YAxvdih) R. & C. M. Cardot proposes the name 

 var. substoUmiferum for the plant to which recent authors have 

 applied the name Hypmim {Isot/ieczutii, Eurhynchium) stoloni- 

 ferum. 



Hypnuin fenax Hedw. is a synonym of Aiiihlystegium irri- 

 guum. The specific name tenax antedating Jlypnum irr/giuim 

 of Wilson by fifty years. 



Leskea compressa Yi&&^.=Entodon cladorrhtzans (Hedw.) 

 C. M. ; not E. compressiis C. M. 



Leskea fasciculosa Hedw. is a var. of Ei/rhynch/um strigo- 

 siim (Hoffm.) B. & S., intermediate between var. diversifolmm 

 and var. pfuccox. It is undoubtedly the var. prircox as defined in 

 my revision. This opinion is based on the locality from which 

 the specimen came. 



Leskea gracilescens Hedw. was not found in the Herbarium. 

 In the opinion of M. Cardot it is probably L. microcarpa Sulliv. 



Leskea imbricatula Hedw. is a synonym of Brachythecium 

 acuminatum (Hedw.) Kindb. 



Pterigynandru»i intricatum 'iieA\sr.=^Pylazsiella velutina 

 (Schimp. ) Kindb., not P. intricata oi modern authors. For the 

 plant known as P. intricata he proposes the name Pylaisia 

 SchimperiYL. Sz C. This modified to Pylaisiella becomes Pylat- 

 siclla Sch/mperi (R. & C.) Grout, as issued in my North Ameri- 

 can Musci Pleurocarpi No. 3: Jan. i, 1900. 



Petrogonium ascendens Schwicgr. ^Platygyrium brachy- 

 cladon Kindb. It is apparently a separate species near Ento- 

 don repcns (Brid.) Grout. 



Tricliostomum tenax }led.'^.=Ditrichu?n tortile, var. ptisil- 

 li/m of ICurope. 



llvpnum sipho P. '5>ea.Viv.=AmblystegiumJlo7-idanum R. & C. 

 and not A. riparium (L.) B. & S. A. J. G. 



