Studies in Natural History Volume 2

Studies in Natural History Volume 2

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1890 edition. Excerpt: ...double; the outer thin, colorless, early deciduous, the inner thick calciferous, white. Capillitium with white, round calcareous nodes. Columella none. Spores spinescent, darkviolet, .012-.014. A very variable species. Our specimens do not agree in several particulars with the description above given, which is substantially that of Rostafinski. As will be seen from the plate, it is the outer peridium that is with us white and burdened with lime, the inner is simple and comparatively thin. The snowy outer peridium is however easily displaced. The colony may not show it at all, in which case the peridia remaining give to the fructification entire a pale lead color, very characteristic. The nodes of the capillitium are not generally round, and the spores in our specimens measure much larger than as quoted, viz: .016-.018, the largest spores we have seen. Withal a handsome and attractive species, not common. Found on decaying wood in August. Mr. Newton. 57. PHYSARUM CINEREUM, Batse/z. Plate IX, Figs. 4, 4a, 46 and 40. Sporangia sessile, crowded, of difierent sizes, spherical elliptical or elongate, flattened. Capillitium strongly developed, richly supplied with large irregular angular calcareous nodes. Columella none. Spores smooth or finely punctate, .007 5-01 3, violet-black. This delicate inconspicuous species is well defined by the characters given. It occurs not rarely on richly manured ground, in meadows, lawns, or even on the open prairie. The plasmodium may form rings several inches in diameter, scattered here and there over a surface several square feet in extent, in fruit ascending the blades of grass, completely covering these with the crowded sporangia. The color of the fruit is well described in the specific name, cinereum,show more

Product details

  • Paperback | 102 pages
  • 189 x 246 x 5mm | 195g
  • United States
  • English
  • black & white illustrations
  • 1236762282
  • 9781236762283