×Hesperotropsis, a new nothogenus for intergeneric crosses betweenHesperocyparisandCallitropsis(Cupressaceae), and a review of the complicated nomenclatural history of the Leyland cypress
2004 ◽
Vol 36
(2)
◽
pp. 294-295
1936 ◽
Vol 68
(1)
◽
pp. 163-164
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1961 ◽
Vol 2
(2)
◽
pp. 73-105
◽