554 NORTH AMERICAN FLORA [VoLumME 7 
O. Pyenia unknown. 
III. Telia amphigenous and caulicolous, crowded in spots 3-15 mm. across or completely 
covering the leaves, completely covering the stems in areas 0.8-5.5 cm. long, round, 0.3-1 
mm. in diameter, early naked, pulvinate, brownish-black, ruptured epidermis evident; telio- 
spores oblong or ellipsoid, 16-23 by 35-55 u, rounded or obtuse above, rounded below, slightly 
constricted at septum; wall chestnut- or golden-brown, 1.5~2.5 u, thickened at apex, 4-7 n, 
smooth; pedicel tinted, up to twice length of spore. 
This species is correlated with Dicaeoma Andropogonis (Schw.) Kuntze, corresponding 
to the race having aecia on Santalaceae. 
ON SANTALACEAE: ; 
Comandra pallida A. DC., Colorado, Montana, Nevada, Utah, Washington; Alberta. 
Comandra umbellata (L,.) Nutt., California, Michigan, Oregon; Quebec. 
TYPE Locality: Washington, on Comandra pallida. 
Distripution: From northern California and central Colorado northward into Canada, and 
locally from southern Quebec to northern Michigan. 
ILLustRaTION: Holway, N. Am. Ured. 1: pl. 11, f. 47. 
Exsiccat1: Barth. N. Am. Ured. 134, 1232, 1641, 1752; Ellis & Ev. Fungi Columb. 1957; 
Garrett, Fungi Utah. 17; Sydow, Ured. 821, 1912. 
74, Micropuccinia Haleniae (Arth. & Holway) Arth. & Jackson; 
Arth. Bull. Torrey Club 48: 41. 1921. 
Puccinia Haleniae Arth. & Holway; Arth. Bull. Geol. Nat. Hist. Surv. Minn. 3: 30. 1887. 
Dicaeoma Haleniae Kuntze, Rev. Gen. 33: 469. 1898. 
Dasyspora Haleniae Arth. Résult. Sci. Congr. Bot. Vienne 346. 1906. 
O. Pycnia unknown. 
III. Telia mostly epiphyllous and caulicolous, crowded and confluent in groups 3-12 
mun. across on the leaves, up to 3.5 em. long on the stems, round or oblong, 0.2—-0.8 mm. long, 
remaining covered by the epidermis, compact, hard, chocolate-brown, shining; stroma abun- 
dant, surrounding each sorus, golden- or chestnut-brown, up to 60 w thick; teliospores cylindric 
or cylindric-clavate, 8-16 by 32-58 yu, truncate, rounded or obtuse above, rounded or nar- 
rowed below, not constricted at septum; wall dark cinnamon-brown above, lighter or colorless 
below, thin, 1-1.5 u, slightly thickened at apex, 2.5-4 4, smooth; pedicel light-brown, 10-20 
long. : 
On GENTIANACEAE: 
Dasystephana calycosa (Griseb.) Rydb. (Gentiana calycosa Griseb.), Wyoming. 
Halenia deflexa (J. E. Smith) Griseb., Michigan, Minnesota, Wisconsin. 
‘TYPE LOCALITY: Vermilion Lake, Minnesota, on Halenia deflexa. 
DISTRIBUTION: Northern Michigan to western Wyoming. 
Exsiccatr: Barth. N. Am. Ured. 145, 448; Vesterg. Micr. Rar. Sel. 1712. 
75. Micropuccinia concrescens (Ellis & Ev.) Arth. & Jackson; 
Arth. Bull. Torrey Club 48: 40. 1921. 
Dicaeoma surinamense Kuntze, Rev. Gen. 3°: 467, hyponym. 1898. 
Puccinia compacta Kunze; Sydow, Monog. Ured. 1: 334. 1902. Not P. compata Berk, 1855, De 
Bary 1858, nor Thiim. 1875. 
Dasyspora compacta Arth. Résult. Sci. Congr. Bot. Vienne 346. 1906. 
Puccinia concrescens Ellis & Ev.; Arth. Mycologia 7: 240. 1915. 
QO. Pycnia unknown. 
III. Telia hypophyllous, in orbicular groups on discolored spots, pulvinate, crowded 
but distinct, becoming confluent at the center into a cushion-like mass 2-4 mm. across, chest- 
nut-brown, often darker at center of the groups and paler at edges; teliospores oblong-elliptic, 
often irregular, 10-20 by 20-40 uw, rounded or obtuse at both ends, or oftener somewhat nar- 
rowed below, slightly or not constricted at septum, which is occasionally oblique; wall chestnut- 
brown or paler, smooth, uniformly thick, 1.5—2 4 or slightly thicker above in some spores; 
pedicel as long as or longer than spore, usually deciduous. 
On ASCLEPIADACEAE: 
Asclepias curassavica L,., Bahamas; Cuba; Porto Rico. 
Asclepias nivea L., Porto Rico. 
Type LOcALITY: Aibonito, Porto Rico, on Asclepias curassavica. 
DISTRIBUTION: West Indies; also in South America. 
