CONTENTS 
VotumE 11, Numsper 1, Paaus 1-32, Issurp Marcu 3, 1921 
Notes on American Ferns—XVI...............- W.R. Maxon 1 
Soil Reactions of Ferns of Woods and Swamps.....#.7. Wherry 5 
More about early Days of the Fern DOCG 34. w ks es E. Waters 16 
Ferns of Baltimore and Vicinity... co. cheres ey ne C. E.Waters 19 
What the Latin Na Be ee ea 25 
Recent Fern Literature... 2... 6... e sees Chet este ee en cee 27 
VotumE 11, Number 2, Paces 33-64, Issuep Oct. 12, 1921 
Notes on American Ferns—XVI ..............-. W.R. Maxon 
A new western a EP OUROR si ys ead vies ie : 
Nephrolepie Nuttin so Se ee ee ee R. C. Benedict 41 
An overlooked Species of Dryopteris/.........-.>- C. Christensen 44 
A pr Vermont. o.. 3. H. C. Ridlon 46 
Salvinia in Minneso bees beter On ua oar ee eng teers F. K. Butters 48 
Reco of Salvinia natans in the United States. C. A. Weatherby 50 
oseiay: 53 
Ayetions Wien Oty fe) es es eee 55 
Votume 11, Numer 3, Paces 65-96, Issuep Fes. 3, 1922 
North American Species of Equisetum........-. oh H. . Schaffner 65 
Pellaea glabella and its sogrega BOE eS reas oe . Butters 75 
Ferns found in New Ha Ae ooo ce C8. W. F. Lewis 82 
An interesting Utip <. 0... vee wees ks E. W. Graves 86 
Rece nt Fern Literature. . Dh Ae eae SN ape ten sigue faster ht 88 
T th Carolina Soylent “M. L. Anderson oe 
Dees Fern Society. ¥ Me ee OU edie ie eens 5 + 
Votume 11, Numper 4, Paces 97-129, IssuED Marcu 31, 1922 
The Boston Fern Show.......--++-+-2+-+scre9? B.C. sg pte 97 
Notes on American Ferns——XVIII ee seks R. Mazon 105 
Plant Saspiriarion Se ce ne ae Elizabeth G. Britton 108 
The Climbing Fern in the Vicinity val Hartford .C. A. Weatherby 109 
Ts Lattyahines dissectum a sterile mutant? 
| ae C.. json WF Hopkin. 114 
Pe se other rich Fern Locality—The gene 
ter a at Willoughby, Vt.—The Wonder Fern i 
pig ioe Pee ee alo Seu aie ss Se vote 
ce oo "Valine SSG SS Se aneencriey rn Pee eee ea 125 
