| Huanglong Si Pass Martin Walsh |
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Huanglong Si Pass. It is suprising how much colour varies between film types and blues are probably the most difficult. Colour is probably the least iimportant taxonomic feature with much natural variation. This species is probably more purple than blue. Hilary and John Birks. |
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Zhedu Pass Sichuan.4298m.35 cms. high. 2009 John Mitchell |
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Individual leaf of previous. Undersides of leaf can be an important diagnostic for some species. John Mitchell. |