Presence of Hippuris lanceolata in LB?

[sjmeades]

Question presence of Hippuris lanceolata in LB - do you have an specimens?

John Maunder received a message from Raider Elven about Hippuris lanceolata and indicated that they have seen no specimens of H. lanceolata from NL. Here is his message: Attached is the file summarizing the Hippuris in CAN and DAO. No record of H. lanceolata in Nfl there. David Murray (Fairbanks) is writing the genus for FNA, and my task was mainly to supply him with distributional data. There is pretty little to find in morphology, not many characters. However, we have seen no specimens with aborting anthers of fruits whatsoever, suggesting that the hybrid hypothesis for H. lanceolata either is wrong or represents a fairly strange genetic situation. Hippuris lanceolata seems to be the ONLY taxon present in Greenland and the Canadian Arctic Archipelago, and sympatry of the three, or even of two of them, is a rather rare situation. Hippuris lanceolata and H. tetraphylla share the anther characters, whereas H. lanceolata and H. vulgaris are more similar in leaf characters (but with a gap in the variation pattern). We have not seen a single intermediate between H. tetraphylla (leaves in middle and upper parts of the stem 4(-5), obovate to oblong, and obtuse) and H. lanceolata (leaves in middle and upper part of stem (5-)6(-7), narrowly oblanceolate or oblong and subacute). Also H. vulgaris (leaves in middle and upper parts of stem (7-)8(-more), linear or very narrowly lanceolate, acute) seems to have no real overlap with H. lanceolata in leaf features. I am not sure what these plants really are, and some low-level genetics (e.g., AFLP) would be nice. Dave's email adress is: ffdfm@uaf.edu

Best greetings, Reidar E."

GitHub won't support a word attachment, so I'll send that to Luc via e-mail.

Sue.

[brouille]

specimen from Buckle's Point, Forteau Bay, Labrador (MT) Elven did not ask for MT specimens Luc

[sjmeades]

Thanks!