﻿Arthur: 
  New 
  species 
  of 
  Uredineae 
  471 
  

  

  15-18 
  by 
  26-35 
  M» 
  rounded 
  above 
  and 
  below, 
  strongly 
  constricted 
  

   at 
  septum; 
  wall 
  cinnamon-brown, 
  1.5-2/1 
  thick, 
  with 
  a 
  small 
  

   subhyaline 
  umbo 
  over 
  the 
  pore 
  of 
  the 
  upper 
  cell, 
  2.5-3 
  M» 
  finely 
  

   but 
  noticeably 
  verrucose-rugcse, 
  best 
  seen 
  when 
  dry; 
  pedicel 
  

   colorless, 
  short, 
  fragile, 
  largely 
  disappearing. 
  

  

  On 
  Polemonium 
  ptdcherrimum 
  Hook., 
  Colby 
  Mountains, 
  

   above 
  Muir 
  Gorge, 
  Yosemite 
  National 
  Park, 
  California, 
  8500 
  

   feet 
  altitude, 
  August 
  6, 
  1919, 
  Mrs, 
  Mary 
  Strong 
  Clemens 
  24. 
  

  

  This 
  species 
  appears 
  to 
  be 
  a 
  short-cycle 
  form, 
  although 
  no 
  

   pycnia 
  or 
  germinating 
  teliospores 
  were 
  found. 
  It 
  is 
  similar 
  to 
  

  

  1 
  

  

  P. 
  Polemonii 
  Diet. 
  & 
  Holw., 
  which 
  is 
  known 
  by 
  the 
  type 
  collection 
  

   from 
  Idaho, 
  1892, 
  and 
  one 
  collection 
  from 
  southern 
  Indiana, 
  1919- 
  

   That 
  species, 
  however, 
  has 
  narrower, 
  smooth 
  spores, 
  with 
  a 
  

   decidedly 
  thickened 
  apex, 
  4-6 
  /z. 
  The 
  sori 
  of 
  the 
  latter 
  are 
  com- 
  

   pact, 
  and 
  show 
  abundant 
  germination, 
  while 
  the 
  sori 
  of 
  the 
  new 
  

   species 
  are 
  pulverulent, 
  and 
  show 
  no 
  germinating 
  spores. 
  

  

  Puccinia 
  proximella 
  (Arth.) 
  comb. 
  nov. 
  

  

  Uredo 
  proximella 
  Arth. 
  Mycologia 
  7: 
  324. 
  191 
  5- 
  

  

  Recently 
  in 
  studying 
  this 
  West 
  Indian 
  rust 
  Dr. 
  E. 
  B. 
  Mains 
  

   discovered 
  teliospores 
  on 
  the 
  type 
  collection 
  made 
  at 
  Sabana 
  

   Grande, 
  Porto 
  Rico, 
  March 
  30, 
  1913, 
  F. 
  L. 
  Stevens 
  Ji8, 
  and 
  has 
  

   drawn 
  up 
  the 
  following 
  description 
  : 
  

  

  III. 
  Telia 
  hypophyllous, 
  scattered, 
  rather 
  tardily 
  naked, 
  

  

  ni 
  

  

  21-27 
  by 
  26-42 
  fjL, 
  rounded 
  above 
  and 
  below, 
  slightly 
  constricted 
  

   at 
  septum; 
  wall 
  dark 
  chestnut-brown, 
  uniformly 
  thick, 
  1.5-2 
  /x, 
  

   moderatelv 
  and 
  distinctlv 
  verrucose; 
  pedicel 
  colorless. 
  

  

  Puccinia 
  hiascens 
  nom. 
  nov, 
  

   Puccinia 
  aticta 
  Arth, 
  & 
  Holway; 
  Arth. 
  Am. 
  Jour. 
  Bot. 
  5: 
  475. 
  

  

  1918. 
  Not 
  P. 
  aucta 
  Berk. 
  & 
  Mull. 
  1872. 
  

  

  The 
  recent 
  discovery 
  that 
  the 
  name 
  applied 
  to 
  this 
  Guate- 
  

   malan 
  rust 
  on 
  Saurauja 
  had 
  previously 
  been 
  used 
  for 
  a 
  very 
  dif- 
  

   ferent 
  Australian 
  rust 
  necessitates 
  a 
  change 
  in 
  the 
  name. 
  

  

  Puccinia 
  Heterisiae 
  H. 
  S. 
  Jackson, 
  nom. 
  nov. 
  

   Puccinia 
  aspera 
  Diet. 
  & 
  Holway; 
  Arth. 
  Bull. 
  Torrey 
  Club 
  29 
  

   230. 
  1902. 
  Not 
  P. 
  aspera 
  Bon. 
  1869, 
  

  

  