150 
Mycologia 
PEZIZALES 
Peziza regalis C. & E. 
Mesilla, on an apple tree {Cockerell). Determination by Earle. 
PSEUDOPEZIZA Medicaginis (Lib.) Sacc. 
On Medicago sativa L. : Pecos, August, 1908, Standley 8056. 
Determined by Sumstine. Reported also from Roswell by Cock- 
erell. 
UREDINALES 
Aecidium Abroniae Ellis & Ev. 
On leaves of Allionia melanotricha Standley: White Mts., 1897, 
IV ooton. 
Aecidium Allenii Clinton 
On Lepargyrea canadensis (L.) Greene: Beulah, July, 1902, 
Cockerell. 
Aecidium Cockerellii Arthur, sp. nov. 
0. Pycnia unknown. 
1. Aecia hypophyllous, in circular groups 1.5 mm. across, cupu- 
late, round when free, ellipsoid when crowded sufficiently, o.i to 
0.3 mm. in diameter ; peridium pale, margin erect, erose ; peridial 
cells rhomboidal, slightly longer than broad, 19-21 by 24-27 /n, 
overlapping somewhat, outer wall 7-10 /x thick, smooth, inner wall 
1. 5-2. 5 /X thick, closely and finely verrucose; aeciospores angu- 
larly ellipsoid, oblong, or globoid, 15-18 by 18-23 /x; wall pale 
yellow to colorless, 1.5 /x thick, occasionally thickened to 2 ju, at 
angles, closely and very finely verrucose, appearing almost smooth 
when wet. 
On Solanaceae: CMmaesaracha Coronopns (Dunal) A. Gray, 
near Las Vegas, New Mexico, 1899, T. D. A. Cockerell. 
Aecidium Compositarum Auct. 
On leaves of Dugaldea Hoopesii (A. Gray) Rydb. : Cloudcroft, 
July 19, 1899, Wooton; Rio Pueblo, Aug. ii, 1910, Wooton; 
Winsor Creek, July 28, 1908, Standley 4581. 
