. The fungi which cause plant disease . Plant diseases; Fungi. 392 THE FUNGI WHICH CAUSE PLANT DISEASE Uredo Persoon (p. 389) Spores produced singly on the terminal ends of mycelial hyphse. Germination by a germ-tube which does not produce basidio- spores, but enters the host-plant through the stomata. These forms are in the main discussed under their telial genera. U. orchidis Wint. and U. satjrrii Mass. are in the leaves of cultivated orchids. U. tropaeoli Desm. is found onTropaeolum; U. arachidis Lag. the peanut;^''^ U. auran- Q KJ tiaca Mont, on Oncidium.^ U. au- N( U tumnalis Diet, on Chr
. The fungi which cause plant disease . Plant diseases; Fungi. 392 THE FUNGI WHICH CAUSE PLANT DISEASE Uredo Persoon (p. 389) Spores produced singly on the terminal ends of mycelial hyphse. Germination by a germ-tube which does not produce basidio- spores, but enters the host-plant through the stomata. These forms are in the main discussed under their telial genera. U. orchidis Wint. and U. satjrrii Mass. are in the leaves of cultivated orchids. U. tropaeoli Desm. is found onTropaeolum; U. arachidis Lag. the peanut;^''^ U. auran- Q KJ tiaca Mont, on Oncidium.^ U. au- N( U tumnalis Diet, on Chrysanthemums in * Japan ^^ and U. kuhnii (Kr.) Nak. on sugar cane in Java. The Auriculariales (p. 323) Mycelium septate, forming a gelatinous, irregular and expanded or capitate sporo- carp; hjrmenium variable, densely beset Fig. 2S2.—Various basidia of with basidia, on each segment of which is i^'auriSriM-'fTiS^M borne a long sterigma, with its single witii longitudinal divisions; spore. 3, daciyomycetes with un- ~i. » • i • i xi divided forked basidium. ihe Aiuriculanales are mostly sapro- phytic and of little economic importance. They embrace some fifty species in two families and are chiefly of interest on account of the form of their basidia Fig. 282, which shows relationship both to the Ustilaginales and to the orders to follow. Ket to Families of Auriculariales Hymenium gymnocarpous 1. Auriculariaces, p. 392. Hymenium angiocarpous 2. Pilacracese. Auriculariacese Key to Tribes or Gexesa of Auriculariacese Sporocarp arising from a ton-like base of mycelial threads I. 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 Stevens, Frank Lincoln, 1871-1934. New York : Macmillan
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfungi, bookyear1913
