New Zealand Map Series 1:
S74 282 894 (WGS84 -43.262124 171.817693)
New Zealand Map Series 260:
L34 14- 71- (WGS84 -43.257854 171.823645)
Latitude and Longitude (WGS84):
43°15´ S 171°49´ E (WGS84 -43.25 171.816667)
Notes:
December 1954, glasshouse. Lincoln Experimental Garden no.G643. "Poison - mercuric chloride".