File:Contributions in geographical exploration (1920) (14781274535).jpg

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English:

Identifier: contributionsing00ohiouoft (find matches)
Title: Contributions in geographical exploration
Year: 1920 (1920s)
Authors: Ohio State University
Subjects:
Publisher: Columbus
Contributing Library: Robarts - University of Toronto
Digitizing Sponsor: MSN

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Photograph by B. B. Fulton THE MESH WORK OF MOSS ON THE FOREST FLOOR. Wind borne spores lodged in the mud cracks whose position was thus indicated by a growth of moss long after they had been filled up by drifting ash. (Vegetation Station 11). The most striking feature of the revegetation of the forest,however, is to be found on the ground. When the ash driedout after the first heavy rains following the eruption, deepcracks appeared like the mud cracks in a dried-up puddle.(See pages 4 and 48). These cracks are, of course, long sincefilled up by drifting ash, but a heavy growth of moss (Ambly-stegium sp.) has come up in every crack, giving the grounda most curious reticulated appearance. (See cut above).
Text Appearing After Image:
Photograph by George C. MartinMUD CRACKS IX THE ASH AFTER THE ERUPTION AUGUST, 1912.The cracks were 2 inches wide and 6-8 inches deep. For a long time the only plantsto reappear came through such cracks. (Cf. page 47). Nov., 1918) Recovery of Vegetation at Kodiak 49 This curious distribution of moss is apparently due to thefact that the spores found lodgment in the cracks. The samemoss often starts around fallen sticks or other objects whichwind-borne spores would settle. One of the most strikinginstances of this was a sea-urchin shell, dropped by a raven,which was embedded in a mass of moss that had grown uparound it. SEEDLINGS OF ALL SORTS STARTING IN THE FOREST. In the forest the trees protect the ground from the wind,and insure a stable surface on which new plants can start.It was sometime after the eruption, however, before seedlingsmade their appearance in any numbers even in the most pro-tected situations. None were observed in 1913 and in thebeginning of the season of 1915 the

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  • bookid:contributionsing00ohiouoft
  • bookyear:1920
  • bookdecade:1920
  • bookcentury:1900
  • bookauthor:Ohio_State_University
  • bookpublisher:Columbus
  • bookcontributor:Robarts___University_of_Toronto
  • booksponsor:MSN
  • bookleafnumber:55
  • bookcollection:robarts
  • bookcollection:toronto
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30 July 2014
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