. Botany, with agricultural applications. Botany. 362 THALLOPHYTES there is abundant conjugation and formation of zygospores. In many laboratories the spores of both strains are kept in stock, and conjugation is obtained whenever desired by using spores of both strains in growing the cultures. Another Mold of this order is Pilobolus, commonly called Squirting Fungus on account of the way it throws its Fig. 313. — Bread Mold, Rhizopus nigricans. A, piece of bread on which there is a growth of Mold (X 3). B, plant body of Bread Mold, shoT\'ing the hyphae (r) which penetrate the bread
. Botany, with agricultural applications. Botany. 362 THALLOPHYTES there is abundant conjugation and formation of zygospores. In many laboratories the spores of both strains are kept in stock, and conjugation is obtained whenever desired by using spores of both strains in growing the cultures. Another Mold of this order is Pilobolus, commonly called Squirting Fungus on account of the way it throws its Fig. 313. — Bread Mold, Rhizopus nigricans. A, piece of bread on which there is a growth of Mold (X 3). B, plant body of Bread Mold, shoT\'ing the hyphae (r) which penetrate the bread, the hyphae which grow up and bear the sporangia (s), and the hyphae (a) (stolons) which grow prostrate on the surface of the substratum and start new plants. (X about 20.) It is common on stable manure and resembles Bread Mold. The hyphae become turgid and swollen just beneath the sporangia and finally burst, hurling the sporangia with considerable force, whence the name Squirting Fungus. In the True Molds, where there are no swimming spores, the Phycomycetes become entirely aerial, although the coenocytic plant body and conjugation still suggest a relationship with the Green Algae. The mycelium, a tangle of hyphae with no definite shape in Phycomycetes, shows some differentiation into absorbing, vegetative, and reproductive structures. The chief propagative structures of the group are zoospores, conidia, and aerial 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 Martin, John N. (John Nathan), b. 1875. New York, John Wiley & sons, inc. ; [etc. ,etc. ]
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbotany, bookyear1920
