﻿Haynes: 
  Six 
  species 
  of 
  Riccia 
  281 
  

  

  "In 
  America 
  boreali 
  inter 
  Jefferson 
  et 
  Gainsville 
  legit 
  C. 
  

   Beyrich. 
  Specimina 
  communlcavit 
  cl. 
  Hampe. 
  

  

  "Frondes 
  caespitosae, 
  radiculis 
  multis 
  longis 
  hyalinis 
  terrae 
  

  

  adhaerentes, 
  2-4 
  lineares, 
  e 
  basi 
  angusta 
  lineari 
  senslm 
  dilatatae, 
  

  

  rarius 
  simplices, 
  plerumque 
  ad 
  tertiam 
  partem 
  et 
  ultra 
  bifidae; 
  

  

  lobi 
  paullo 
  divergentes, 
  obtusiusculi, 
  nonnunquam 
  iterum 
  emar- 
  

  

  gmato-bifidi. 
  Tota 
  frons 
  est 
  carnosa, 
  apicem 
  versus 
  subtus 
  

  

  magis 
  tumida, 
  supra 
  canali 
  medio 
  angusto 
  instructa, 
  viridis, 
  

  

  margine 
  subadscendente, 
  sphacelata, 
  subtus 
  membrana 
  nigro- 
  

  

  purpurascente 
  vestita, 
  integerrima. 
  Sub 
  epidermide 
  hyalina 
  

  

  tenera 
  e 
  cellulis 
  hexaedris 
  conflata 
  adest 
  stratum 
  viride 
  satis 
  

  

  spissum. 
  Contextus 
  cellulosus 
  internus 
  est 
  laxior, 
  cellulis 
  irre- 
  

   gularibus. 
  

  

  Obs. 
  Proxime 
  accedit 
  ad 
  R, 
  hortorum 
  [an 
  African 
  species], 
  quae 
  

   disfinguitur 
  statura 
  multo 
  majore, 
  fronde 
  latiore 
  margine 
  un- 
  

   dulato-crenata 
  subtus 
  minus 
  tumida. 
  Riccia 
  tumida 
  [a 
  synonym 
  

   of 
  R. 
  Michelii 
  Raddi, 
  a 
  European 
  species] 
  differt 
  a 
  nostra 
  fronde 
  

   minus 
  divisa 
  ciliata 
  basi 
  planiuscula." 
  

  

  Type 
  locality: 
  between 
  Jefferson 
  and 
  Gainesville, 
  Georgia. 
  

  

  Distribution: 
  Massachusetts 
  ' 
  to 
  Florida, 
  Texas, 
  California, 
  

   and 
  Alberta; 
  also 
  in 
  Europe. 
  

  

  Exsiccatae: 
  Aust. 
  Hep. 
  Bor.-Am. 
  143 
  (as 
  R. 
  Lescuriana), 
  

   The 
  original 
  description 
  of 
  Riccia 
  Lescuriana 
  Aust.,* 
  which 
  

   IS 
  now 
  considered 
  a 
  synonym 
  of 
  R. 
  Beyrichiana, 
  is 
  as 
  follows 
  : 
  

  

  4 
  

  

  a 
  

  

  Riccia 
  Lescuriana, 
  Aust. 
  MSS., 
  1863. 
  

  

  "R. 
  fronde 
  solida 
  subciliata 
  orbiculata 
  stellatim 
  vel 
  subcru- 
  

   ciatim 
  divisa 
  incrassata, 
  supra 
  punctato-reticulata 
  glauco 
  vel 
  

   cineraceo-viridi 
  epidermide 
  macula 
  purpurea 
  supra 
  fructum 
  notata, 
  

   subtus 
  nuda 
  concolore 
  vel 
  demum 
  purpurascente; 
  laciriiis 
  bilobis 
  

   vel 
  di-trichotomis 
  obcordatis 
  lineari-cuneatisve 
  (2-5 
  lin. 
  longis, 
  

   1-2 
  h*n. 
  latis) 
  leniter 
  concavo-canaliculatis, 
  apice 
  emarginatis 
  

   brevi 
  sulcatis, 
  .margine 
  hirsuto-ciliatis 
  incrassatis 
  obtusis 
  sub- 
  

   adscendentibus 
  ad 
  apicem 
  subinvolutis; 
  ciliis 
  creberrimis 
  brevibus 
  

   albidis 
  obtusis 
  in 
  statu 
  juniori 
  subobsoletis 
  ; 
  fructibus 
  sparsis 
  ijon 
  

   seriatis 
  subbasilaribus, 
  sporis 
  fusco-atris 
  angularibus 
  reticulatis: 
  

   gemmis? 
  numerosis 
  ellipticis 
  aterrimis 
  in 
  frondis 
  facie 
  superior! 
  

   versus 
  loborum 
  apicem 
  posltis 
  quam 
  sporis 
  triplo 
  minoribus. 
  

   Hep. 
  Bor, 
  Amer, 
  Exsic, 
  ined.j 
  N, 
  143. 
  

  

  * 
  Proc. 
  Acad. 
  Nat. 
  Sci. 
  Philad. 
  1869: 
  232. 
  1869. 
  

  

  