Part 8, 1922] AECIDIACEAE 551 
Own ARALIACEAE: 
Panax trifolium I,., Massachusetts. 
® LOCALITY: [Boston], Massachusetts, on Panax trifolium. 
DIsTRIBuTION: Known only from the type locality. 
Intustrarions: Holway, N. Am. Ured. 1: pl. 37, f. 121. 
67. Micropuccinia Cryptotaeniae (Peck) Arth. & Jackson; 
Arth. Bull. Torrey Club 48: 42. 1921. 
Puccinia Cryptotaeniae Peck, Bull. Buffalo Soc. Nat. Sci. 1:66. 1873. , 
Puccinia Astrantiae Berk. & Curt. Grevillea 3:52. 1874. Not P. Astrantiae Kalchbr. 1865. 
Dicaeoma Astrantiae Kuntze, Rey. Gen. 33: 468. 1898. 
Dicaeoma Cryptotaeniae Kuntze, Rev. Gen. 33: 468. 1898. 
Allodus Cryptotaeniae Arth, Résult. Sci. Congr. Bot. Vienne 345. 1906. 
O. Pycnia amphigenous, numerous, preceding or among the telia, punctiform, dark- 
brown, depressed-globoid, small, 65-80 1 broad by 50-65» high; ostiolar filaments up to 
45 pw long. 
III. Telia amphigenous, chiefly hypophyllous and caulicolous, scattered singly or more 
commonly in irregular groups of few to many sori, often following the veins, petioles, and 
stems, small, round, 0.2-0.5 mm. across, standing well out from surface of leaf, opening tardily 
by a central pore, chestnut-brown, becoming somewhat pulverulent with age, ruptured epi- 
dermis cinereous, persistent and conspicuous; teliospores somewhat irregularly ellipsoid, oblong, 
or fusiform, 14-20 by 28-46 u, rounded or obtuse above, rounded or narrowed below, not or 
very slightly constricted at septum; wall cinnamon-brown, uniformly thin, 1.5—2 », with abrupt 
hyaline papilla at apex and over pore of lower cell at septum, smooth; pedicel colorless, fragile, 
as long as spore, or more commonly deciduous. 
This species is correlated with Allodus microica (Ellis) Orton, the telial characters being 
practically identical, and the hosts being the same. The two forms are closely related, having 
undoubtedly had a common origin. 
On AMMIACEAE: 
Deringa canadensis (L.) Kuntze (Cryptotaenia canadensis DC.), Connecticut, Delaware, 
Iowa, Massachusetts, New Jersey, New York, Pennsylvania, Wisconsin; Canada. 
TPE LocaLity: North Greenbush, New York, on Cryptotaenia canadensis. 
DistTRrsution: Delaware northward to southeastern Canada and westward to northern Iowa. 
In.ustrations: Ann. Rep. N. Y. State Mus. 25: pl. 2, f. 12; Holway, N. Am. Ured. 1: pl. 
39, f. 131; Sitz.-ber. Bohm. Ges. Wiss. 190076: f. 36—40. . ; . 
Exsiccati: Barth. N. Am. Ured. 630, 2240; Ellis, N. Am. Fungi 1450; Ellis & Ev. Fungi 
Columb. 485; Ellis & Ev. N. Am. Fungi 2412; Rel. Farl. 250; Sydow, Ured. 2020. 
68. Micropuccinia Musenii (Ellis & Ev.) Arthur & Jackson. 
Puccinia Musenii Ellis & Ev. Bull. Torrey Club 27:61. 1900. 
Puccinia Seymourii Lindr. Medd. Stockh. Hégsk. Bot. Inst. 49: 4. 1901. 
Allodus Musenii Orton, Mem. N. Y. Bot. Gard. 6:193. 1916. 
O. Pycnia unknown. 
III. Telia amphigenous and caulicolous, scattered or confluent into large groups some- 
times 20 mm. long, usually roundish or linear, 0.2-0.4 mm. long, long covered by the epidermis, 
pulverulent, blackish; teliospores broadly ellipsoid, 18-25 by 29-42 u, usually rounded at 
both ends; wall chestnut- or chocolate-brown, 2-3 u thick, 4-7 » thick above, conspicuously 
but finely verrucose, the markings more prominent at apex; pedicel hyaline, deciduous, 
rarely up to 3 or 4 times length of spore. 
On AMMIACEAE: _ 
Daucophyllum tenuifolium (Nutt.) Rydb. (Musenion tenuifolium Nutt.), Nebraska, Wyo- 
ming. : . 
Elophus Parishii peda Hi Dei California. 
Oreoxis humilis Raf., Colorado. ; 
Peruse plericia anisata (A. Gray) Rydb. (Pseudocymopterus anisatus Coult. & Rose), Col- 
ado, Wyoming. ae 
Patrons Pptanaius (S. Wats.) Rydb. (Pseudocymopterus bipinnatus Coult. & Rose, 
Cymopterus bipinnatus S. Wats.), Montana. _ a 
TypE LOCALITY: Freezeout Hills, Wyoming, on Musenion tenuifolium. 
