[Argyroxiphium grayanum x
A.
sandwicense subsp. sandwicense] x Dubautia linearis subsp.
linearis]
A. grayanum
- A. sandwicense
This remarkable hybrid combines the genomes of the Mauna Kea silversword,
the
greensword, and a Dubautia. It was produced artificially by first crossing the two Argyroxiphium
species. This hybrid had about 63% pollen stainability and exhibited a
maximum chromosome pairing configuration of 12II + 1M4 during meiosis. The primary hybrid was then crossed with Dubautia
linearis to produce the trispecific hybrid which had about 12% stainable pollen and
exhibited a maximum chromosome pairing configuration of 9II + 1M6
+ 1 M3 during meioisis.
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