. A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations. Poisonous plants. EUTHALLEPHYTA—EUMYCETES—EUBASIDII 221 PROTOBASIDIOMYCETES Parasitic or saprophytic plants; basidia with longitudinal or cross septa; mycelium septate, branched, either in the interior of the plant as parasites or ramifying the substratum; spores various. The following types occur: sper- matia, aecidiospores, uredospores, teleutospores, and sporidia; the spermatia are always accompanied by other spores, generally with the aecidiospore
. A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations. Poisonous plants. EUTHALLEPHYTA—EUMYCETES—EUBASIDII 221 PROTOBASIDIOMYCETES Parasitic or saprophytic plants; basidia with longitudinal or cross septa; mycelium septate, branched, either in the interior of the plant as parasites or ramifying the substratum; spores various. The following types occur: sper- matia, aecidiospores, uredospores, teleutospores, and sporidia; the spermatia are always accompanied by other spores, generally with the aecidiospores; the aecidiospores are 1-celled and occur in cups; the uredospores are 1-celled, occur in a powdery mass, and germinate inunediately; teleutospores arise from the same mycelium that produces the uredospores, one or more cells, on germina- tion they produce a promycelium that bears the sporidia. This group contains the following families: Endophyllaceae with a fungus parasitic on the leaves of spurge, stonecrop and house-leek; Melampsoraceae including several important economic fungi; Pucciniaceae containing a large number of genera; the Auri- culariaceae, gelatinous fungi common on decaying wood. MELAMPSORACEAB Teleutosori forming incrustations on the surface of leaves; uredosori powdery; aecidia without pseudoperidium (Caeoma) or with well developed. Fig. 60. Uredineae. Teleutospores of different genera germinating. By germination originate the promycelia which divide into cells, each of which produces a conidium. 1. Uromyces Pabae x 46Q. 2. Triphragmivm Ulmariae x. 370. 3. Mel- ampsora betulina x 370. 4. Phragmidium Rubi x 370. t—Teleutospore; sp—Conidium. After Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Pammel, L. H. (Louis Hermann), 1862-1931. Cedar Rapids, Ia. , The Torch Press
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