Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If You Use a Screen Reader

This content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.

A New Species of Dictyostelium from Hawaii

Nancy Nelson, L. S. Olive and Carmen Stoianovitch
American Journal of Botany
Vol. 54, No. 3 (Mar., 1967), pp. 354-358
Stable URL: http://www.jstor.org/stable/2440763
Page Count: 5
  • Read Online (Free)
  • Download ($12.00)
  • Subscribe ($19.50)
  • Cite this Item
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
A New Species of Dictyostelium from Hawaii
Preview not available

Abstract

A new species of Dictyostelium, isolated from a decaying ear of corn in Hawaii, is described. Because of the numerous irregularities in its developmental morphology and general appearance, it is being named D irregularis. Aggregation is by amoebal streaming, and the aggregation mass commonly segments into several pseudoplasmodia, each of which produces a sorocarp in situ or after migration. During migration stalk material is laid down behind the pseudoplasmodium. The mature sorocarps, which do not exceed 1 mm in height, have very irregular stalks and globular-to-elongate sori with elliptical spores that measure 3.5-7 x 4.8-9.8 μ. Cyst formation was not observed. The new species is of particular interest from the standpoint of its probable primitive position in the genus.

Page Thumbnails

  • Thumbnail: Page 
354
    354
  • Thumbnail: Page 
[355]
    [355]
  • Thumbnail: Page 
356
    356
  • Thumbnail: Page 
[357]
    [357]
  • Thumbnail: Page 
358
    358