402 NORTH AMERICAN FLORA [VoLUME 7 
Convolvulus interior House, Nebraska. 
Convolvulus malacophyllus Greene (C. villosus A. Gray), California. 
Convolvulus occidentalis A. Gray, California. 
Convolvulus purpuratus Greene (C. californicus A. Gray, C. luteolus A. Gray), California. 
Convolvulus sepium L,., Alabama, Delaware, District of Columbia, Illinois, Indiana, Iowa, 
Kansas, Massachusetts, Michigan, Minnesota, Missouri, Montana, Nebraska, New 
Jersey, New York, North Dakota, Ohio, Tennessee, Vermont, Virginia, West Virginia, 
Wisconsin; Quebec. 
Convolvulus sepium pubescens (A. Gray) Fernald (C. repens L.), New Jersey. 
Convolvulus Soldanella L., California. 
TYPx LOCALITY: Europe, on Convolvulus arvensis. 
_ DISTRIBUTION: Massachusetts to Alabama, and westward to the Rocky Mountains, and on the 
Pacific coast; also in northern Africa and Europe. 
ILiustrations: Beitr. Krypt. Schweiz 2?: f. 234; Krypt.-fl. Brand. Pilze 3: f. B144. 
Exsiccatt: Barth. Fungi Columb. 2354, 3934, 4355, 5056; Barth. N. Am. Ured. 427, 428, 936, 
937, 1037, 1234, 1838, 2238, 2239; Carleton, Ured. Am. 11; Ellis, N. Am. Fungi 255, 1011; Ellis 
& Ev. Fungi Columb. 260, 551, 984, 1958, 2053; Ellis & Ev. N. Am. Fungi 1857, 3346; Seym. & 
Earle, Econ. Fungi 331a, 6, 332a, b, 492; Sydow, Ured. 1171. 
196. Dicaeoma jalapense (Holway) Arthur. 
Aecidium jalapense Holway, Ann. Myc. 2: 392. 1904. 
QO. Pycnia epiphyllous, minute, gregarious, immersed, globoid or ovoid-globoid, 80-128 u 
broad by 128-144 » deep; ostiolar filaments free. 
I. Aecia hypophyllous, crowded in groups of 1-6, cupulate, low; peridium whitish, darken- 
ing later, the margin erect, lacerate; peridial cells rhomboidal, 16-24 by 24-37 u, overlapping 
somewhat the wall 4-6 u thick, the outer smooth, the inner strongly verrucose; aeciospores 
globoid or angular, often resembling peridial cells in shape, 19-24 by 24-35 uw; wall colorless, 
4-6 » thick, not uniform, closely and finely but distinctly verrucose. 
II. Uredinia amphigenous, numerous, scattered, frequently seen in groups, irregular or 
roundish, up to 0.8 mm. across, rather early naked, pulverulent, brown, ruptured epidermis 
conspicuous; urediniospores globoid, ellipsoid or obovoid, 21-24 by 26-35 »; wall chestnut- 
brown, 2-3 » thick, prominently echinulate, the spines 4—6 » apart, the pores 3, equatorial. 
III. Telia unknown. 
On CONVOLVULACEAE: 
Ipomoea Jalapa (L..) Pursh, Oaxaca. 
TYPE LOCALITY: Jalapa, Mexico, on Ipomoea Jalapa. 
DistRIBUTION: Known only from the type locality. 
Exsiccati: Barth. N. Am. Ured. 1501. 
197. Dicaeoma Lithospermi (Ellis & Kellerm.) Kuntze, 
Rev. Gen. 3°: 469. 1898. 
Puccinia Lithospermi Ellis & Kellerm. Jour. Myc. 1:2. 1885. 
O. Pycnia epiphyllous, crowded in small groups about 1 mm. in diameter on slightly 
yellowish spots, rather inconspicuous, honey-yellow becoming light-brown, globoid or flattened- 
globoid, 95-130 by 80-100 y; ostiolar filaments up to 55 « long, usually somewhat agglutinated 
into a column. 
I. Aecia chiefly hypophyllous, crowded in groups up to 2 mm. across, cupulate, puncti- 
form, low, 0.1-0.2 mm. across; peridium whitish, the margin erect, denticulate; peridial cells 
rhomboidal, 15-19 by 16-29 u, considerably overlapping, the outer wall 3-7 » thick, smooth, 
the inner wall 3-5 » thick, finely verrucose; aeciospores angularly globoid, 13-16 by 16-21 4; 
wall colorless, 1-1.5 u thick, finely and inconspicuously verrucose. 
II. Uredinia amphigenous and caulicolous, numerous, scattered, sometimes in circinating 
groups, 1-2 mm. in diameter, roundish or more often lenticular or linear, 0.4 mm. across, up 
to 1-2 mm. long, early naked, pulverulent, dark-brown, ruptured epidermis conspicuous; 
uredinicspores globoid or obovoid, 18-21 by 21-26 u; wall cinnamon-brown, 1.5-2 » thick, 
moderately echinulate, the pores 2 or 3, usually 2, equatorial. 
III. Telia amphigenous, not abundant, scattered, round, small, 0.2-0.5 mm. across, early 
naked, compact, pulvinate, blackish-brown, ruptured epidermis conspicuous; teliospores 
elongate-ellipsoid or pyriform, 18-23 by 42-56, rounded, truncate or usually attenuate 
above, strongly constricted at septum; wall chestnut-brown, 1.5-2 » thick, thickened at apex 
