160 NORTH AMERICAN FLORA [VoLUME 7 
at septum; wall laminate, inner layer cinnamon-brown, medium thick, 2-34, pores 2, 
lateral and opposite, outer layer gelatinous, colorless, barely noticeable when swollen in 
water, 1-1.5, minutely verrucose; pedicel colorless, about 6# thick, short and largely 
deciduous. 
ON FABACEAE: _ 
cr domingensis (DC.) Heller (Dalea domingensis DC.), Oaxaca, San Luis Potosi ; 
‘tuba. 
TYPE LOCALITY: Orizaba, Mexico, on Dalea domingensis. 
DISTRIBUTION: Mexico and West Indies. 
14. PROSPODIUM Arth. Jour. Myc. 13: 31. 1907. 
Cycle of development includes pycnia, uredinia and telia; autoecious. All sori sub- 
cuticular. 
Pycnia hemispherical; hymenitm flat; ostiolar filaments wanting. 
Uredinia erumpent, definite, usually encircled by paraphyses. Urediniospores borne 
singly on pedicels, globoid or obovoid ; wall colored, verrucose, often with a gelatinous 
layer, pores usually two. 
Telia erumpent, definite, usually encircled by paraphyses. Teliospores free, two-celled 
by transverse septum, sparsely verrucose; wall somewhat laminate, inner layer firm, 
colored, outer layer gelatinous, thin, translucent, pores one in each cell, apical in upper 
cell, near the pedicel in lower cell; pedicels refractive, usually appendaged. 
Type species, Puccinia Amphilophii Dietel & Holway (on Pithecoctenium hexagonum). 
Urediniospore-wall inflated; pedicels of teliospores strongly appendaged. 1. P. appendiculatum. 
Urediniospore-wall not noticeably inflated ; pedicels slightly appendaged. 2. P. Amphtlophit. 
1. Prospodium appendiculatum (Wint.) Arth. Jour. Myc. 13: 31. 1907. 
Puccinia appendiculata Wint. Flora 67: 262. 1884. 
Puccinia ornaia Hark. Proc. Calif. Acad, II. 2: 231. 1889. 
Puccinia medusaeoides Arth. Bot, Gaz. 16: 226. 1891. 
Dicaeoma Stantis Kuntze, Rev. Gen. 3: 467. 1898. 
Dicaeoma appendiculaia Kuntze, Rev. Gen. 3: 467. 1898. 
Puccinia Tecomae Sacc. & Sydow; Sacc. Syll. Fung. 14: 358. 1899. 
O. Pyenia unknown. 
II. Uredinia chiefly hypophyllous, scattered, minute, punctiform, soon naked, light 
cinnamon-brown, ruptured cuticle inconspicuous; paraphyses peripheral, short, incurved, 
spoon-shaped, 6-10 by 30-40 4, wall thin, colorless, smooth ; urediniospores broadly obovate 
or globoid, 19-25 by 23-28, wall laminate, inner layer cinnamon-brown, rather thin, 1-24, 
outer layer paler, gelatinous, swelling irregularly up to 5, especially at apex, sparsely and 
evenly verrucose, pores indistinct, 2, opposite and equatorial. 
Ill. Telia chiefly hypophyllous, resembling the uredinia, but blackish and with fewer 
but similar paraphyses; teliospores elliptical, 23-30 by 40-504, rounded at both ends, 
slightly constricted at septum ; wall chestnut-brown, thick, 4-6, gelatinous layer golden- 
yellow, not conspicuous except at apex and base, where it produces an umbo-like thick- 
ening, sparsely and finely verrucose ; pedicel colorless, firm, once to twice length of spore, 
with about three whorls of large branched appendages. 
On BIGNONIACEAE: : 
Stenolobium molle (H.B.K.) Seem. (Tecoma mollis H.B.K.), Morelos, Oaxaca, Puebla. 
Stenolobium Stans (L.) D, Don (Tecoma Stans Juss.), Cuba. 
TYPE LOCALITY: Mexico, on Bignoniaceae sp. indet. : : 
DISTRIBUTION: Central Mexico and West Indies southward ; also in South America. 
ILLUSTRATION: Hark. loc. cit. pl. 12. 
2. Prospodium Amphilophii (Dietel & Holway) Arth. Jour Myc. 13: 31. 
1907. 
Puccinia Amphilophii Dietel & Holway, Bot: Gaz. 24: 30. 1897. 
Puccinia phlyctopus Sydow, Monog. Ured. 1: 242. 1902. 
O. Pycnia epiphyllous, gregarious, brownish, inconspicuous, hemispherical or conoidal.,. 
80-110 # broad, half as high; hymenium flat. 
