CONTENTS 
VoLuME 9, NuMBER 1, Paces 1-32, Issurp Marcu 14 
Notes on American Ferns—XIII............. W. R. Maxon 1 
Fern-hunting in Panama................. seeds. 2. Rep 5 
Testes Prengopyta 1 ek, E. J. Palmer 17 
TA Eso oe et oe ee eg oe oe oe ea 23 
American Pern Mociety. 061566 .55 or ids eee 28 
VoLuME 9, NuMBER 2, Paces 33-66, Issunp Jury 5 
Early Days of the Fern Society............. E. J. Winstow 33 
Ferns of the District of Columbia........... .W. R. Mazon 38 
The Simplest Fern in Existence............. R. C. Benedict 48 
‘aes Prerinopnyta 1 es oe es ce E. J. Palmer 50 
Botrychiums of Mobile County, Alabama....E. W. Graves 56 
A Fern from the Battle-ground.............. H.C. Bigelow 58 
ruabent Pere Titeraree no ae ea 59 
American: Werty Maeiety et ro. ee a 69 
VoLuME 9, NuMBER 3, Pacss 67-98, Issurp OcroBer 11 
Notes on American Ferns—XIV.............. W.R. Maxon 67 
Aspidium cristatum X marginale and A. simulatum 
Raynal Dedge 73 
Texas Pteridophyta—lIll....2..........2. Lyi: Pemet St 
A crested Form of the Lady Fern............. L.S. Hopkins 86 
Commercial Fern Gathering................. S.H. Burnham 88 
Monomorphism in Equisetum Telmateia....... J.C. Nelson 93 
Pars Tern BAY oe ko oe ee ee: 96 
VotumeE 9, Number 4, Paces 99-130, Issurp January 24, 1920 
Content of an Epiphytic Fern............... R. M. Harper . 99 
Another “Freak” Equisetum................. J.C. Nelson 103 
Willoughby Lake as “the Richest Fern Locality” 
E.J. Winslow 106 
The Irresistible Charm of the Ferns.......... E.H.Clarkson 109 
apetmns Form Tapert os ee 115 
Cnt PR er ee eS 117 
meen Neri rey. oo. 6 as ee eS 123 
