206 NORTH AM:BRICAN FLORA [Volume 7 



Crataegus peniandr a Sarg., Vermont. 

 Crataegus Pequotorum Sarg., Connecticut. 

 Cfataegus pertomentosa Ashe, Iowa, Kansas. 



Crataegus Phaenopyrum (L. f.) Medic. (C cordaia Ait.), Delaware, Tennessee, 

 Crataegus pinguis Sarg., Michigan. 

 Crataegus pisifera Sarg., Vermont. 

 Crataegus potita Tatnalliana (Sarg.) Bggl., Missouri. 

 Crataegus praecox Sarg., New York. 



Crataegus Pringlei Sarg., Connecticut, Indiana, New York. 



Crataegus pruinosa (Wendl.) C. Koch, Connecticut, Missouri, New York, Ohio, South 

 Carolina. 



Crataegus pruinosa latisepala (Ashe) Eggl. (C. cognata Sarg., C. laiisepala Ashe), 



Massachusetts, Michigan. 

 Crataegus punctata Jacq., Indiana, Illinois, Iowa, Massachusetts, Michigan, Missouri, 



New York, North Carolina, Ohio, Pennsylvania, Vermont, West Virginia ; Ontario. 

 Crataegus quinebaugensis Sarg., Connecticut. 

 Crataegus Reverchoni Sarg., Texas. 



Crataegus rhombifolia Sarg., Connecticut, Massachusetts, New York, Vermont. 

 Crataegus roanensis Ashe {C. ascendens Sarg.), Kentucky, Vermont. 

 Crataegus Robbinsiana Sarg., Vermont. 

 Crataegus rotundifolia Moench, Iowa, Vermont; Ontario. 

 Crataegus scabrida Sarg., Vermont. 

 Crataegus Schweinitziana Sarg. , Pennsylvania. 

 Crataegus submollis Sarg., Vermont. 

 Crataegus sucida Sarg., Missouri. 

 Crataegus tecta Beadle, Alabama. 

 Crataegus tenella Ashe, Connecticut. , 

 Crataegus tetrica Beadle, Tennessee. 

 Crataegus tomentosa Z,., Illinois, Maine, Missouri, New York, Ohio, Wisconsin ; Ontario, 



Quebec. 

 Crataegus Treleasei Sarg., Missouri. 



Malus Malus (L.) Britton, Connecticut, Maine, Massachusetts, New York, Vermont. 

 Pyrus communis Iv., Connecticut, New York. 

 Sorbus americana Marsh., Massachusetts, Vermont. 



III. Telia caulicolous, from a perennial mycelium, appearing on irregular globoid gall- 

 like excrescences 3-25 mm. in diameter, unevenly disposed, sometimes densely aggre- 

 gate, often separated by the scars of the soriof previous seasons, tongue- or wedge-shaped, 

 becoming about 1.5-3 mm. broad by 2-5 mm. long atthebase by 6-12 mm. high when fully 

 mature, chestnut-brown becoming yellowish and pulverulent by germination ; teliosppres 

 2-celled, ellipsoid, 16-21 by 37-48 ju, somewhat narrowed above and below, slightly con- 

 stricted at the septum; wall pale cinnamon -brown, uniformly thin, l-2jLt, the pores 2 in 

 each cell, near the septum ; pedicel cylindrical, uniform, 4-7 ju in diameter, very long. 



On Juniperaceae : 



Juniperus barbadensis L. {Sabina barbadensis Small), Alabama. 



Juniperus virginiana L. {Sabifia virginiana Ant.), Alabama, Connecticut, Illinois, 



Indiana, Iowa, Kansas, Kentucky, I,ouisiana, Massachusetts, Michigan, Mississippi, 



Missouri, New York, North Carolina, South Carolina, Texas, West Virginia, Vermont, 



Wisconsin ; Ontario. 



Type LOCALITY : Massachusetts, ou Juniperus virginiana. 



Distribution : Staine west to southeastern South Dakota and south to northern Florida and 



Texas. 



Illustrations : Fad. Gymnosp. XJ. S. pi. 7, /. 7-11 ; Bull. Iowa Kxp. Sta. 84: /. 3 ; E. & P. 

 Nat. Pfl. 11** : /. 34, A ; Hedwigia 34 : 3, /. 6; Bot. Gaz. 49 : pi. 21, f. 4 ; Bull. N. Y. Bot. Gard. 

 7: 468, /.J(9; pi. 161 J. 67. 



Exsiccati: Ellis, N. Am. Fungi 1478; Ellis & Ev. N. Am. Fungi 2997, 2998; Ellis & Ev. 

 Fungi Columb. 758, 2028; Earth. Fungi Columb. J^J^; Thiim. Myc. Univ. 2139 ; Sydow, Ured. 29(5, 

 1434,2048; Rab.-Wint.-Paz. Fungi Eur. -s^f^/j"; Seym. &Earle, Econ.Fungi229;ir (inpart), j^/ (in part), 

 231b, 233a, 237 (in part) ; Kellerm. Ohio Fungi 44; Rav. Fungi Am. 481 ; Shear, N. Y. Fungi 79, 123. 



27. Gymnosporangium hyalinum (Cooke) Kern, Bull. N. Y. Bot. 



Gard. 7: 470. 1911. 



Roesielia hyalina Cooke, Bull. Soc. Bot. Fr. 24: 315. 1877. 

 Aecidium. hyalinum Farl. Bibl. Index 1 : 55. 1905. 



0. Pycnia epiphyllous, rather few, gregarious, on discolored spots, noticeable, honey- 

 yellow becoming brownish. 



1. Aecia hypophyllous, rather numerous, gregarious, borne in small gall-like pyriform 

 protuberances of a reddish-brown color which are consolidated at the bases, cylindrical, 2-5 

 mm, high by 0.2-0. 3 mm. in diameter; peridium tardily rupturing with a few irregular slits 

 along the sides, somewhat twisted but not spreading or recurved ; peridial cells usually seen 



