304 NORTH AMERICAN FLORA [VoLuME 7 
ON VERBENACEAE: 
Verbena angustifolia Michx., Kansas, Missouri. 
Verbena bracteosa Michx., Nebraska. 
Verbena canadensis (L.) Britton, Oklahoma. 
Verbena hastata I,., Kansas, South Dakota, 
Verbena stricta Vent., IUinois, Indiana, Kansas, Nebraska, Oklahoma, South Dakota. 
Verbena urticifolia L., Kansas, Nebraska, Oklahoma. 
If. Uredinia epiphyllous, numerous, evenly distributed, oblong-linear, 0.5—1.5 mm. long, 
yellowish, early naked, ruptured epidermis conspicuous; urediniospores obovoid or ellipsoid, 
21-27 by 26-35 yu; wall colorless, 1.5-2 u thick, much thicker above, 5-10 », moderately and 
conspicuously verrucose-echinulate, the pores indistinct, 6-8, approximately equatorial. 
III. Telia chiefly epiphyllous, numerous, scattered, elliptic, 0.5-1.5 mm. long, blackish- 
brown, early naked, pulvinate, compact, ruptured epidermis conspicuous; teliospores ellipsoid 
or oblong, 18-28 by 37-53 4, rounded at both ends, or sometimes obtuse above and tapering 
below, slightly constricted at septum; wall chestnut-brown above, paler below, 1.5-2 « thick, 
5~9 » at apex, smooth; pedicel colorless, stout, twice length of spore. 
On PoackEAE: 
Sporobolus asper (Michx.) Kunth (S. longifolius Wood), Alabama, Illinois, Indiana, Iowa, 
Kansas, Mississippi, Nebraska, Oklahoma, South Dakota, Tennessee, Wisconsin. 
Sporobolus Drummondii (Trin.) Vasey, Kansas. 
Sporobolus neglectus Nash, Nebraska. 
TYPE LocaLity: Manhattan, Kansas, on Verbena urticifolia. 
7 DistRIBUTION: Prairies from Wisconsin to South Dakota and southward to Alabama and Okla- 
oma. 
ILLUSTRATIONS: Bull. Lab. Nat. Hist. Univ. Iowa 4: pl. 6, f. 26a-d. 
Exsiccatr: Arth. & Holway, Ured. Exs. Ic. 26a-d; Barth. Fungi Columb. 2472, 3471, 3865; 
Barth. N. Am. Ured. 274, 476, 670, 671, 771, 1779; Carleton, Ured. Am. 21; Ellis & Ev. N. Am. Fungi 
2417, 3570; Ellis & Ev. Fungi Columb. 48, 191, 270, 1189, 1383, 1869, 1977, 1978, 2074, 2163; Ellis, 
N. Am. Fungi 1434a, b; Rab.-Paz. Fungi Eur. 4226; Seym. & Earle, Econ. Fungi 523; Seym. & 
Earle, Econ. Fungi Suppl. B19; Sydow, Ured. 1032, 1200, 1280, 2131. 
45. Dicaeoma (?) egenulum (Arth.) Arthur & Fromme. 
Uredo egenula Arth. Bull. Torrey Club 45: 155. 1918. 
Oand I. Pyenia and aecia unknown. 
Il. Uredinia epiphyllous, numerous, scattered, oblong or linear, 0.2-1.2 mm. long, early 
naked, pulverulent, cinnamon-brown, ruptured epidermis evident; urediniospores globoid or 
broadly ellipsoid, 21-25 by 26-34 u; wall cinnamon-brown, rather thick, 1.5-2.5 », moderately 
and noticeably echinulate, the pores 2, equatorial, prominent. 
III. Telia unknown. 
On POACEAE: 
Sporobolus argutus (Nees) Kunth, Jamaica. 
Type LocaLtiry: Below Gregory Park, Heaithshire Hills, Halfmoon Bay, Jamaica. 
DistRiButTion: Known only from the type locality. 
46. Dicaeoma simulans (Peck) Arthur & Fromme. 
Uromyces simulans Peck, Bot. Gaz. 4: 127. 1879. 
Puccinia Cryptandri Ellis & Barth. Erythea 5:47. 1897. 
Dicaeoma Cryptandri Arth. Résult. Sci. Congr. Bot. Vienne 344. 1906. 
OandI. Pycnia and aécia unknown. 
II. Uredinia epiphyllous and caulicolous, numerous, crowded and often confluent, oblong- 
linear, 0.5-2 mm. long, early naked, pulverulent, dark cinnamon-brown, ruptured epidermis 
conspicuous; urediniospores ellipsoid or obovoid, 19-25 by 29-40 4; wall cinnamon-brown, 
rather thick, about 2 », moderately and strongly echinulate, the pores distinct, 3 to 5, equa- 
torial. : 
III. Telia epiphyllous, oblong, 0.5-2 mm. Jong, early naked, blackish-brown, ruptured 
epidermis conspicuous; teliospores ellipsoid or oblong, 24-32 by 40-50 u, rounded at both 
ends, or sometimes obtuse above, only slightly constricted at septum; mesospores occasional ; 
wall dark chestnut-brown, 3-4 u thick at the sides, considerably thickened above, up to 9 y; 
pedicel colorless, stout, twice length of spore or mote. 
This species is morphologically nearly identical with Nigredo Sporoboli (Ellis & Ev.) Arth., 
except in the presence of two-celled teliospores, and should eventually be irtcorporated with it 
under one name. 
