398 NORTH AMERICAN FLORA [VoLUME 7 
rounded above and below, only slightly constricted at septum; wall chestnut-brown, uniformly 
thick, 1-1.5 y, irregularly rugose or sometimes longitudinally rugose; pedicel hyaline, fragile, 
not longer than spore. 
On AMMIACBAE: 
Leptotaenia Eatoni Coult, & Rose, Montana. 
Pseudocymopteris montanus (A. Gray) Coult. & Rose, Colorado, New Mexico, Utah. 
Pseudocymopteris multifidus Rydb., New Mexico. 
Pseudoreoxis bipinnatus (S. Wats.) Rydb. (Pseudocymopteris bipinnatus Coult. & Rose), 
Montana. 
TyPEx Locality: Ouray, Colorado, on Pseudocymopleris m ntanus. 
DIstRIBuTION: New Mexico northward to Montana. 
ILLUSTRATIONS: Holway, N. Am. Ured. 1: pl. 42, f. 1384, b. 
Exsiccati: Garrett, Fungi Utah. 219. 
189. Dicaeoma Cicutae (Lasch) Kuntze, Rev. Gen. 33: 468. 
1898. 
Puccinia Cicutae Lasch; Klotzsch, Herb. Viv. Myc. 787. 1845. 
O. Pyenia petiolicolous, sometimes amphigenous, occurring between the aecia, yellowish, 
flattened-globoid, 100-125 » in diameter by 70-90 » high; ostiolar filaments short, up to 35 u. 
J. Aecia caulicolous, petiolicolous, or amphigenous, often on the veins of the leaves, 
gregarious in oval or oblong groups, pustulate, low-cupulate, 0.4-0.“6mm. across; peridium 
whitish, the margin erect, erose; peridial cells oblong, 16-29 by 32-45 y, slightly overlapping, 
the outer wall 5-10 » thick, smooth, transversely striate, the inner wall thinner, 3-5 yu, rather 
coarsely verrucose; aeciospores globoid or broadly ellipsoid, 15-20 by 18-27 y; wall pale-yellow, 
1-1.5 » thick, minutely verrucose. 
II. Uredinia amphigenous, especially hypophyllous, scattered, roundish or oval, 0.3-1 
mm. across, rather early naked by an irregular rupture of the epidermis, pulverulent, cinna- 
mon-brown, ruptured epidermis noticeable; urediniospores globoid or ellipsoid, 16-23 by 21— 
30 yw; wall light cinnamon-brown, 1-2 » thick, moderately echinulate, the pores 3, equatorial. 
III. Telia amphigenous, chiefly hypophyllous, scattered, occasionally confluent, roundish 
or elliptic, small, 0.3-1.2 mm. across, early naked, pulverulent, chestnut-brown, ruptured 
epidermis evident; teliospores broadly ellipsoid or oblong, 19-26 by 28-40 4, rounded at both 
ends, somewhat constricted at septum; wall chestnut-brown, 1.5-2.5 4 thick, uniform, or some- 
times up to 4 at apex, coarsely verrucose, the markings sometimes in longitudinal lines; 
pedicel colorless, fragile, sometimes as long as spore, often inserted somewhat laterally. 
On AMMIACEAE: : 
Cicuta Bolanderi A. Gray, California. 
Cicuta californica A. Gray, California. 
Cicuta Curtissii Coult. & Rose, Florida. : 
Cicuta maculata L., New York, Wisconsin; Manitoba. Nova Scotia. 
Cicuta occidentalis Greene, California, Idaho, Oregon. 
Cicuta vagans Greene, Nevada. 
‘TYypE LocALity: Oriesen, Germany, on Cicute virosa. : . 
DisTRIBuTION: Along the Atlantic coast from Nova Scotia to Florida, and locally in the central 
and western parts of the United States; also in Europe and Asia. : 
ILLusTRATIONS: Holway, N. Am. Ured. 1: pl. 39, f. 129a, b; Krypt.-fl. Brand. Pilze 3: f. B34. 
Exsiccati: Barth. Fungi Columb. 4753; D. Griff. W. Am. Fungi 376. 
190. Dicaeoma marylandicum (Lindr.) Arthur. 
Puccinia marylandica Lindr. Medd. Stockh. Hégsk. Bot. Inst. 4°: 2. 1901. 
O. Pycnia amphigenous, crowded in small groups, punctiform, indistinct, honey-yellow 
becoming brown, immersed, globoid, about 80 u in diameter and 110 » in depth; ostiolar fila- 
ments 40-50 » long. 
1. Aecia hypophyllous or petiolicolous, crowded in small orbicular groups 2-4 mm. across, 
cylindric, short, 0.1-0.2 mm. in diameter; peridium white, delicate, the margin recurved, 
lacerate; peridial cells rhombic, 15-26 by 24-39 n, overlapping considerably, the outer wall 
3-5 » thick, transversely striate, the inner wall 5-7 » thick, verrucose; aeciospores angularly 
globoid, 15-23 by 16-25 yu; wall very pale-yellow or colorless, 1-1.5 » thick, finely, closely and 
rather inconspicuously verrucose. 
Il. Uredinia amphigenous, numerous, scattered, roundish, 0.1-0.2 mm. across, early 
naked, pulverulent, cinnamon-brown, ruptured epidermis noticeable; urediniospores broadly 
