Parasitic Fungi of Illinois. 405 



Variable, 4 or 5 to as many as 20, mostly numerous; spores 

 large, quite uniformly 2, but occasionally varying to 3 or 

 even 4. 



On Napcea dioica: Stephenson, Sept. 13, 5806. Vernonia 

 fasciculata: Lake, Aug. 27, 1364; Rock Island, Sept. 23, 1630, 

 Sept. 24, 1656; Tazewell, July 22, 2371; McLean, Oct. 12, 

 1850; Jersey, Oct. 13, 6289, Oct. 14, 6312; Union, Oct. 21, 

 1933; Pulaski, Nov. 4, 2234. Eupatorium purpureum: Mc- 

 Lean, Aug. 1, 2366. Aster sagittifolius : McLean, Sept. 6, 5661. 

 Aster Icevis: McLean, July 14, 5547. Aster sps: Kane, Aug. 

 30, 1376; Rock Island, Sept. 24, 1658, Sept. 27, 1691; Henry, 

 Sept. 28, 1710; McLean, Oct. 11, 1833, 1835, Aug. 4, 2375; 

 Stephenson, Sept. 13, 5804; Jo Daviess, Sept. 18, 5976; Cham- 

 paign, Oct. 16, 6574; Union, Oct. 21, 1914, Oct. 24, 1964, Oct. 

 25, 2000, Oct. 27, 2065. Solidago Canadensis: Stephenson, 

 Sept. 13, 5804. Solidago sps: Union, Oct. 24, 1972. Ambrosia 

 trifida: La Salle, Sept. 12, 1484, 1494; Rock Island, Sept. 21, 

 1626; Henry, Sept. 28, 1704; McLean, Oct. 6, 1805, Oct. 13, 

 1865, Oct. 19, 1898; Jo Daviess, Sept. 15, 5903. Ambrosia arte- 

 misicefolia: Rock Island, Sept. 23, 1632, Sept. 27, 1690; Fulton, 

 Oct. 1, 1778; McLean, Oct. 6, 1806, Oct. 12, 1851; Champaign, 

 Sept. 19, 6618; Union, Oct. 24, 1974, Oct. 25, 1998. Xanthium 

 strumarium: Henry, Sept. 28, 1709; La Salle, Sept. 28, 6214, 

 Sept. 30, 6246; Jersey, Oct. 12, 6278, Oct. 13, 6288. Helian- 

 thus rigidus: Boone, Sept. 2, 1421; La Salle, Sept. 12, 1491; 

 Rock Island, Sept. 24, 1655; Henry, Sept. 28, 1720; Fulton, 

 Oct. 1, 1782. Helianthus decapetalus: LaSalle, Sept. 14, 1532; 

 McLean, Oct. 6, 1807. Helianthus tuberosus: McHenry, Aug. 

 20,1154. Helianthus sps: LaSalle, Sept. 13,1499; McLean, 

 Oct. 11, 1837; Lee, Sept. 9, 5742; Jo Daviess, Sept. 16, 5944; 

 Stephenson, Sept. 13, 5803; Ogle, Sept. 22, 6087, Sept. 25, 6164; 

 Actinomeris squarrosa: La Salle, Sept. 14, 1531, 1543; Rock Is- 

 land, Sept. 26, 1668; McLean, Oct. 6, 1808, Oct. 19, 1897; 

 Union, Oct. 31, 2127; Stephenson, Sept, 2, 6072; Ogle, Sept. 

 25, 6165. Cirsium discolor: McLean, July 14, 5548, (imma- 

 ture); Stephenson, Sept. 13, 5805. Hieracium Canadense : Mc- 

 Henry, Aug. 20, 1215. Verbena angustifolia: Marion, Oct. 20, 

 1901; LaSalle, Sept. 29, 6233; Jersey, Oct. 12, 6279; Ogle, 

 Sept. 23, 6133. Verbena hastata: McHenry, Aug. 20, 1155; 



