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Questions and Answers: 2015

Question: Primula Mistassinica? Or Laurentiana? Lower Waterford, VT near Connecticut River

  • Question

    Primula Mistassinica? Or Laurentiana? Lower Waterford, VT near Connecticut River

    Answer

    Dear Barbartalcott, I'm sorry, I simply can't tell you because the primary differences between these two species are the size of various organs. Here is the key from Flora Novae Angliae that will allow you to measure parts of this plant and determine for yourself. 3a. Sepals 3–6 mm long; scape 3–21 cm tall; largest leaf blades 10–40 (–60) mm long; bracts of umbel 3–6 mm long, barely (if at all) saccate at the base; capsules 2–3 mm in diameter; seeds rounded, their surface nearly smooth; flowers heterostylous . . . . .. . P. mistassinica 3b. Sepals 6–9 mm long; scape 10–40 cm tall; largest leaf blades 40–80 mm long; bracts of umbel 6–14 mm long, definitely saccate at the base; capsules 2.5–5 mm in diameter; seeds angled, their surface evidently reticulate; flowers homostylous . . . . . P. laurentiana