204 NORTH AMERICAN FLORA [V01.UMK 7 



often over considerable areas, cylindrical, filiform, rather long, 3-6 mm., about 0.5-1 mm. in 

 diameter, orange- colored ; teliospores 2-5-celled, linear-fusiform, 9-16 by 85-170 m, not con- 

 stricted at the septa; wall pale-yellow, thin, about Iju, the pores apical, 1 in the uppermost 

 cell, 2 in each of the other cells ; pedicel cylindrical, uniform, slender, very long. 



On Juniperaceae : 



Chamaecyparis thyoides (L.) B.S.P. {Cupressus thyoides I,., Chamaecyparis sphaeroidea 

 Spach), Alabama, Delaware, Florida, Massachusetts, New Jersey. 

 Type locality : Newfield, New Jersey, on living white cedar {Chamaecyparis thyoides] . 

 • Distribution : Along the Atlantic coast from Massachusetts to Delaware, and in northern 

 Florida and southern Alabama. 



Illustrations : Farl. Gymnosp. U. S. pL 2,f. 13-17 ; Bull. N. Y. Bot. Card. 7 : 466,/. 28. 

 ExsiCCATi: Rab.-Wint. Fungi Kur.2$'2(?; Thiim. Myc. Univ. 79J<5; Roum. Fungi ^^\. 4921 ; 

 Seym. & Earle, Econ. Fungi 2*/(5,- Ellis, N. Am. Fungi 27i; Ellis & Ev. Fungi Columb. 55. 



25. Gymnosporangium Betheli Kern, Bull. Torrey 



Club 34: 459. 1907. 



Roestelia Betheli Kern, Bull. Torrey Club 34 : 461. 1907. 



0. Pycnia fructicolous and epiphyllous, numerous, gregarious, more or less crowded in 

 irregular groups on discolored spots, punctiform, subepidermal, honey-yellow becoming 

 blackish, flask-shaped, 130-160 \x in diameter by 100-112 m high ; ostiolar filaments 45-65 m long. 



1. Aecia fructicolous and hypophyllous, densely aggregate on discolored spots, usually- 

 occupying only part of the surface on the fruits, or in small groups on the leaf -blades, cylin- 

 drical, 0.2-0.3 mm. in diameter, 3-8 mm. high ; peridium soon becoming finely lacerate 

 above, often nearly to base, spreading ; peridial cells seen in both face and side views, rather 

 long and narrow, hygroscopic, curving somewhat when wet, broadly lanceolate in face view, 

 20-25 by 60-90 ju, linear and slightly curved in side view, 13-20 /a thick, the outer wall thin, 

 1-1. 5ju, smooth, the inner and side walls moderately thick, 4-6^, moderately rugose with 

 closely set linear ridges with a few separate elongate papillae interspersed ; aeciospores 

 globoid, 18-24 by 23-30 ju; wall chestnut-brown, 2.5-3 )Lt thick, finely verrucose, the pores 

 several, scattered. 



On Malaceae : 



Crataegus color adensis A. Nelson, Colorado. 



Crataegus chrysocarpa Ashe, Colorado, Montana, Wyoming. 



Crataegus Douglasii lyindl. (C brevispina Dough), Montana, Oregon, Washington. 



Crataegus erythropoda Ashe (C Cerronis A. Nels.), Colorado. 



Crataegus occidentalis Britton, Colorado. 



Crataegus rivularis Nutt., Colorado. 



Crataegus saligna Greene, Colorado. 



III. Telia caulicolous, from a perennial mycelium, appearing on irregular, elongate, 



gall-like knots, usually breaking forth in succession along the branch with the grain of the 



wood, varying greatly in size and extent, unevenly disposed, wedge-shaped, 1-1.5 mm. 



broad by 1-3 mm. long at the base, 3-4 mm. high, chestnut-brown ; teliospores 2-celled, 



ellipsoid, 17-25 by 40-55 ju, rounded or somewhat narrowed above and below, slightly or not 



constricted at the septum ; wall dark cinnamon -brown, varying in thickness on different 



spores, 1-2 ;z, smooth, the pores 2 in each cell, near the septum ; pedicel hyaline, cylindrical, 



uniform, 6-7 ju in diameter, very long. 



On Juniperaceae : 



Juniperus scopulorum Sarg. {Sabina scopulorutn, Rydb.), Colorado. 

 Type locality : Boulder, Colorado, on Sabina scopulorum. 



Distribution : Northeastern Washington and southeastern Oregon to Colorado. 

 Illustrations ; Bot. Gaz. 49 : pi. 21, f. 5 ; Bull. N. Y. Bot. Card. 7 : 467, /. 29 ; pi. 159, f. 59. 

 ExsicCATi: 'Bd.rt)i.'^\xngiCo\Mmh.25'26,2788,2789,2790; D. Griff. W. Am. Fungi JJJ; Ellis 

 & Ev. Fungi Columb. 1480. 



26. Gymnosporangium globosumFarl. Gymnosp. U. S. 34. 1880. 



Gymnosporangium fuscum globosum Farl, Gymnosp. U. S. 18. 1880. 

 Roestelia lace.rata y, z, Thaxter, Proc. Am. Acad. 22 ; 266. 1887. 

 Puccinia globosa Kuntze, Rev. Gen. 3^ : 507. 1898. 

 Tremella globosa Arth. Proc. Ind. Acad. Sci. 1900 : 136. 1901. 

 Aectdium globosum Farl. Bibl. Index 1:49. 1905. 



O. Pycnia epiphyllous, numerous, gregarious, more or less crowded in irregular groups 

 1-3 mm. across, on discolored spots 3-7 mm. across, prominent, conspicuous, honey-yellow 



