+e

cus i

Figure 4b.

UNIV. OFWASH. LIZRARIES

UNIV. OF WASH P

Autoradiograph of Portulaca oleracea (#576) fr om Runi t Island
cree®
taken 75 yards from tower base. Exposure: 5 1 days to No-S
°

eg: «5

Vanes Pitan

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