Part 3, 1912] ABCIDIACBAB 195 



straight when wet, long and narrow in side view, 15-19 by 32-90;/, lanceolate in face view, 

 19-23// broad, the outer wall rather thin, 1.5-2^, nearly or quite smooth, the inner and 

 side walls moderately thick, 3-6//, closely subspinulose with rather short spine-like papil- 

 lae, interspersed with lower oval or ridge-like papillae, extending obliquely clear across 

 the side walls, sometimes extending on to the outer wall ; aeciospores globoid or ellipsoid, 

 15-23 by 18-27 // ; wall chestnut-brown, rather thick, about 2.5-3//, very minutely verru- 

 cose, appearing almost smooth, the pores about 6, scattered. 



On Malaceae : 



Crataegus fiavo-carnis Ashe, North Carolina. 



Crataegus Marshallii Eggl. (C apiifoha Michx.), Alabama, IvOuisiana. 



Crataegus Phaenopyrum (I,, f.) Medic. (C. cordaia Ait.), North Carolina. 



III. Telia caulicolous, from a perennial mycelium, appearing on abruptly fusiform or 

 globoid somewhat gall-like enlargements 0.5-1.5 cm. in diameter by 0.5-3 cm. long, unevenly 

 disposed, sometimes closely aggregated, often separated by the scars of the sori of previous 

 seasons, more or less wedge-shaped, often irregular and somewhat lacunose, when fulh'- 

 mature 1.5-2 mm. broad by 2-4 mm. long at base by 6-10 mm. high, the surface very rough 

 with irregular warts and ridges, dark chestnut-brown ; teliospores 2-celled, ellipsoid, 18-21 

 by 37-45//; wall cinnamon-brown, moderately thin, 1.5-2.5//, varying in thickness on dif- 

 ferent spores, the pores 1 or 2 in each cell, near the septum; pedicel hyaline, cylindrical,. 

 uniform, 4-5// in diameter, very long. 



On Juniperaceae : 



Juniperus virginiana I^. {Sabina virginiana Ant.), Mississippi, South Carolina. 

 Type locality : Santee Canal, South Carolina, axi Juniperus vtrgiiiiana. 

 Distribution : From North Carolina southwest to Mississippi and lyouisiana. 

 Illustration: Bull. N. Y. Bot. Card. 7: 450, /. 15. 



12. Gymnosporangium tubulatum Kern, Bull. N. Y. Bot. 



Gard. 7: 451. 1911. 



Roesielia iuhulata Kern ; M. E- Jones, Bull. Univ. Mont. 61 : 64. 1910. 



0. Pycnia epiphyllous, rather numerous, gregarious, in irregular groups 1-2 mm. across, 

 on discolored spots 4-8 mm. across, prominent, conspicuous, honey-yellow becoming 

 blackish, flattened-globose, 190-225 /^ in diameter, by 128-160// high; ostiolar filaments 



50-65 // long. 



1. Aecia chiefly hypophyllous, crowded in irregular groups, on thickened discolored 

 spots, cylindrical, acutish at apex, 2-3.5 mm. high by 0.2-0.4 mm. in diameter ; peridium 

 firm, tardily dehiscent by longitudinal slits in the lower part ; peridial cells seen in both face 

 and side views, not hygroscopic, remaining straight when wet, fusiform-oblong in face view, 

 18-26 by 48-80//, oblong in side view, 16-24// thick, the outer wall rather thin, 1-1.5//, 

 smooth, the inner and side walls moderately thick, 5-6//, rather densely and moderately 

 rugose with ridges of varying length ; aeciospores globoid or broadly ellipsoid, 18-22 by 

 21-28 // ; wall light chestnut-brown, 1.5-2.5 // thick, finely verrucose, the pores evident, 6-8, 

 scattered. 



On Malaceae : , . . ^ i ^ ,^ . 



Crataegus Douglasii hindl. {C. bremsptna Dough) , Montana. 



Crataegus Williamsii'Eggi., Montana. 



III. Telia unknown. 



Type locality : Near Flathead Lake, Montana, on Crataegus Douglasii. 

 Distribution : Western Montana. 



13. Gymnosporangium Botryapites (Schw.) Kern, Bull. Torrey 



Club 35 : 506. 1908. 



Caeoma {Roestelia) Botryapites Schw. Trans. Am. Phil. Soc. II. 4 : 294. 1832. 

 Ceratites\caeo_ma) f i^^'T^^^f- 1, ^^J l^^ t%'' im'"' ' ''''■ 



Ceranies \^(^aeontu,) jjwt-r j'^^j^'-^^^ ^^--^' ■-'----■ n-,„y^ c . aa iR7d. 



Gymnosporangium biseptatum Elhs Bull Torrey Club 5 . 46. 1874. 



Roestelia Eliisii Peck, Bull. Torrey Club 6 : 13. 1875. 

 Roestelta Botryapites Cooke & Hlhs Grevillea 5 : 34 1876 



Aeddium Botryapites]. L- Bennett PI. Rho^e^^\^Sf«^^- ^^^^• 

 P«ra«2a^^/0/«;;'zV^^Kuntze Rev Gen.3.^: 508 1898 



Tremella Botryapites Arth. Proc Ind. Acad. Sci. 1900 . 135. lyui. 



