558 NORTH AMERICAN FLORA [VoLuME 7 
83. Micropuccinia Heliotropii (Kern & Kellerm.) 
Arthur & Jackson. 
Puccinia Heliotropii Kern & Kellerm.; Kern, Jour. Myc. 13:23. 1907. 
O. Pycnia unknown, probably not formed. 
III. Telia hypophyllous, gregarious, densely crowded in orbicular groups 2-8 mm. across, 
often confluent, round, small, 0.1-0.4 mm. across, early naked, compact, somewhat pulvinate, 
chestnut-brown, becoming cinereous by germination, ruptured epidermis inconspicuous; telio- 
spores oblong, ellipsoid, or oblong-obovoid, 14-19 by 35-45 y, rounded or obtuse above, ustially 
narrowed to pedicel below, slightly constricted at septum; wall nearly colorless or light cinna- 
mon-brown, thin, 1-1.5 y, thickened 3-7 » above, smooth; pedicel colorless, fragile, equaling 
spore, usually deciduous; mesospores occasionally intermixed. 
On HELIOTROPIACEAE: 
Heliotropium indicum I.., Guatemala. 
‘Tyre Locatity: Gualén, Zacapa, Guatemala, on Heliotropium indicum. 
DISTRIBUTION: Eastern Guatemala. 
84. Micropuccinia Mertensiae (Peck) Arth. & Jackson; Arth. 
Bull. Torrey Club 48: 42. 1921. 
Puccinia Meritensiae Peck, Bot. Gaz. 6: 227. 1881. . 
Dicaeoma Mertensiae Kuntze, Rev. Gen. 33: 469. 1898. 
O. Pycnia unknown. 
III. Telia chiefly hypophyllous or petiolicolous, occasionally epiphyllous, round, 0.2-1 
mm. in diameter, gregarious and more or less confluent in groups 0.5-1 cm. across, on yel- 
lowish spots, early naked, chocolate-brown, pulverulent, ruptured epidermis conspicuous; 
teliospores ellipsoid or oblong, 18-21 by 24-32 yu, rounded above and below, slightly constricted 
at septum; wall cinnamon-brown, 1.5-2 » thick, scarcely thickened at apex and over pore 
of lower cell, which is usually depressed half way to pedicel, closely and finely verrucose- 
tuberculate with flat tubercles, which become successively smaller and closer from apex to 
base of spore; pedicel colorless, deciduous. 
On BORAGINACEAE: 
Meriensia arizonica Greene, Utah. 
Mertensia Bakeri Greene, Colorado. 
Mertensia ciliata (Torr.) G. Don (M. sibirica G. Don, M. polyphylla Greene), Colorado, 
Utah, Wyoming. 
Mertensia foliosa A. Nelson, Utah. 
TYyPE LocaLity: Colorado, on Mertensia sibirica. 
DIstTRIBUTION: Mountain region of Colorado, Wyoming and Utah. 
Exsiccati: Clements, Crypt. Form. Colo. 571; Garrett, Fungi Utah. 166; Sydow, Ured. 1931. 
85. Micropuccinia Urbaniana (P. Henn.) Arthur & Jackson. 
Puccinia Urbaniana P. Henn. Hedwigia 37: 278. 1898. 
O. Pyenia unknown, probably not formed. 
III. Telia hypophyllous, occasionally epiphyllous, gregarious and more or less confluent 
in groups 5-10 mm. across, on brownish or purplish spots, often arranged in a concentric 
manner, small, 0.2-0.5 mm. across, roundish, somewhat tardily naked, compact, pulvinate, 
blackish-brown becoming cinereous by germination, ruptured epidermis usually not con- 
spicuous; teliospores ellipsoid or clavate, 14-22 by 28-45 yn, somewhat irregular, rounded 
above, narrowed to pedicel below, slightly constricted at septum; wall cinnamon- or light 
chestnut-brown, 1-2 « thick, thickened 4-7 4 above, smooth; pedicel fragile, colored like 
the spore-wall or lighter, equaling spore or shorter. 
ON VERBENACEAE: 
Cornutig grandifolia Schauer, Guatemala. 
Valerianodes cayennensis (Vahl) Kuntze (Stachytarphete cayennensis Vahl), Costa Rica. 
Valerianodes jamaicensis (L,.) Kuntze (Stachytarpheta jamatcensis Vahl, S. dichotoma Vahl), 
Florida; Guatemala; Jamaica; Bahamas; Cuba; Porto Rico. 
Valerianodes strigosa (Vahl) Cook & Collins (Stachytarpheta strigosa Vahl), Mona Island; 
Porto Rico. . 2 . : 
TypE LocaLtity: Port Antonio, Jamaica, on Stachytarpheta jamaicensis. 
