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Caption: Board of Trustees Minutes - 1884
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102 three examples of this remarkrble peculiarity, the teleuto form in each case being found on the first named, the aecidia on the second. In the descriptions of species the Eoman numerals indicate the stage of the fungus, viz: I secidium, II uredo, and III teleutoform. Key to the Genera of TJre&inea. I. Spores at maturity forming a more or less powdery mass. A. Spores with a permanent pedicel, mostly smooth and dark brown. 1. Spores one celled Uromyces. 2. Spores two celled, septum horizontal Puccmia. 3. Spores three celled, septa in different planes Triphragmium. 4. Spores three or more celled, septa horizontal Phragmidium. 5. Spores many celled, septa variously placed. . Kavenelia. Spores with deciduous pedicels or none, one celled, mostly roughened with minute projections, usually yellow or reddish brown. 1. Sorus with a peridium, spores produced in vertical chains, without pedicels. a. Peridium cup-shaped, rim-border mostly toothed or lobed and recurved *.. iEcidium. b. Peridium hemispherical or bowl-shaped, deeply* immersed Endophyllum. e. Peridium elongated, usually cylindrical or conical, soon split-fringed above Ecestelia. d. Peridium various, bursting irregularly, white, on Coniferae Peridermium. 2. Sorus without peridium. a. Spores produced in vertical chains, without pedicels, usually accompanied with spermogonia... Caeoma. b. Spores produced on pedicels (deciduous) not accompanied with spermogonia Uredo. B. II. III. Spores at maturity embedded in gelatine, two-celled, septum horizontal, pedicel long Gymnosporangium. Spores at maturity in a dense, waxy or crust-like stratum, not separating from each other. A. Spores one celled, less commonly several celled and then the septa almost never horizontal, mostly dull reddish brown. 1. Spores one celled, oblong, united in an erect (often curved) cylindrical column Cronartium. 2. Spores one or more celled, septa when present mostly vertical or oblique, united in a flat or convex stratum Melampsora
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