﻿Vol. 
  47 
  

  

  No. 
  7 
  

  

  BULLETIN 
  

  

  OF 
  THE 
  

  

  TORRE 
  Y 
  BOTANICAL 
  CLUB 
  

  

  JULY, 
  1920' 
  

  

  I 
  

  

  ^ 
  _ 
  

  

  ustrations 
  of 
  six 
  species 
  of 
  Riccia, 
  with 
  the 
  original 
  descriptions 
  

  

  Caroline 
  C. 
  Haynes 
  

   (with 
  plates 
  10-13) 
  

  

  A 
  systematic 
  account 
  of 
  the 
  North 
  American 
  Ricciaceae 
  will 
  

   soon 
  be 
  pubhshed 
  by 
  Dr. 
  Marshall 
  A. 
  Howe 
  in 
  the 
  North 
  American 
  

   Flora. 
  Among 
  the 
  species 
  of 
  Riccia 
  attributed 
  in 
  this 
  work 
  to 
  

   the 
  L'nited 
  States 
  the 
  following 
  six 
  have 
  not 
  yet 
  been 
  adequately 
  

   figured, 
  at 
  least 
  from 
  American 
  material: 
  R. 
  DonneUii, 
  R. 
  dictyo- 
  

   spora, 
  R. 
  Beyrichiana, 
  R. 
  arvensis, 
  R. 
  Mrta 
  and 
  R. 
  CurtisU.* 
  

   It 
  therefore 
  seems 
  fitting 
  to 
  publish 
  in 
  advance 
  illustrations 
  of 
  

   these 
  species. 
  The 
  data 
  in 
  regard 
  to 
  distribution 
  and 
  synonymy 
  

   have 
  been 
  taken, 
  with 
  Dr. 
  Howe's 
  permission, 
  Trom 
  his 
  manuscript; 
  

   and 
  for 
  the 
  sake 
  of 
  completeness 
  the 
  original 
  descriptions, 
  which 
  

   in 
  some 
  cases 
  are 
  difficult 
  of 
  access, 
  are 
  reproduced 
  in 
  full. 
  

  

  I. 
  Riccia 
  Donnellii 
  Aust. 
  Bull. 
  Torrey 
  Club 
  6: 
  157. 
  • 
  1877 
  

  

  r 
  

  

  Dioica 
  maxima; 
  fronds 
  solida 
  esquamosa 
  subglauca 
  superne 
  

   maxmie 
  reticulata 
  subtus 
  concolore, 
  laciniis 
  subsimplicibus 
  pro 
  

   niore 
  discretis 
  planiusculis 
  siccitate 
  canaliculatis 
  costatis 
  margine 
  

   spinulis 
  (serie 
  singula) 
  breviusculis 
  hyalinis 
  valde 
  incrassatis 
  

   obtusus 
  paten 
  tibus 
  armatis, 
  nervo 
  solidissimo 
  valde 
  incrassato 
  

   subtus 
  in 
  media 
  fronde 
  terminante 
  apice 
  valde 
  incrassato 
  obtuso 
  

   subdescendente, 
  sporangiis 
  serie 
  singula 
  in 
  media 
  fronde 
  versus 
  

   basin 
  sitis, 
  sporis 
  maximis 
  subrotundis 
  nigris 
  valde 
  opacis 
  sub- 
  

   tuberculatis; 
  involucris 
  masculinis 
  magnis 
  valde 
  prominentibus 
  

  

  * 
  As 
  indicated 
  later 
  R. 
  CurtisU 
  has 
  recently 
  been 
  figured 
  by 
  McAllister, 
  but 
  

   chiefly 
  as 
  to 
  the 
  morphology 
  of 
  the 
  sporophyte; 
  and 
  R. 
  Beyrichiana 
  has 
  doubtless 
  

   been 
  illustrated 
  by 
  European 
  authors 
  under 
  the 
  name 
  R, 
  Lescuriana 
  and 
  possibly 
  

   under 
  other 
  names. 
  

  

  [The 
  Bulletin 
  for 
  June 
  (47: 
  231-278, 
  pi. 
  8, 
  g) 
  was 
  issued 
  June 
  23, 
  1920.] 
  

  

  279 
  

  

  