Post by tom on Mar 13, 2007 21:01:58 GMT
Hi,
it is basically a copy/paste of the posts I've made on OCPS forums regarding a fieldtrip done in northeastern Quebec, July 2006, with Olivier Marthaler (thanks again!)
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We spent 3 days in the Reserve Faunique des Laurentides, where we visit 3 specific sites: the same one I visited last year with the D. linearis and a all green form of S. purpurea plus 2 others cited in literature that I wanted to check back the presence of D.linearis.
Here is a few highlights from our trip:
-A general view of the first bog
-Drosera anglica leaf blade
-A plant of Drosera linearis
-Drosera linearis has been seen growing in Sphagnum mosses at several places
-As you can see, the pH is fairly acidic around Drosera linearis we found. The average on 15 differents readings is 4.18. This is weither the plant is growing in moss or not.
-Not very clear, but you can see D. linearis, D. rotundifolia and D. anglica growing side by side
-Utricularia cornuta in bloom
-Olivier inspecting plants
-No, it's not the Loch Ness monster... its... a beaver out of focus...!
-Utricularia vulgaris on the lake where we saw the beaver
-Me, sorting Drosera leaves for a group photo
We also numbered the Sarracenia purpurea's phenotype and checked if we were in the presence of the 'semi-veinless' form as Carl Mazur defined in last September's CPN. In the end, I think not. With the help of Olivier 'Hawkeye' Marthaler, we numbered around 2000 plants in 2 differents classes, the 'all-green' form (f. heterophylla), intermediate form (all green with red vein but not any trace of red on the others parts of the leaves) and the 'typical red form' (must have red veins and at least some traces of red on leaves). For proper classification, the judgement was done only on leaves well-exposed to sun. The final count still need to be done, but overall we're about a ratio of 0.33 for each but with a large concentration of the 2 first classes in the first half of the bog.
D. rotundifolia, anglica and linearis were seen growing side by side (in a 6"/15 cm radius) but we aren't sure if we were in the presence of the species (anglica) or the hybrid (x anglica= rotundifolia x linearis). Seed pods were too young to judge if there was any positive seeds development.
We were unable to find the bog the second day.
On the third day, we find a location that I was unable to find 3 years ago. This site was supposed to host Drosera linearis too but we're not still sure about this. I took a few herbarium specimens for further ID. This time, a lot of D. anglica, still in an acidic bog, but the variations in sundews was quite interesting: rotundifolia, x obovata, anglica and perhaps linearis. We are still unable to confirm the presence or absence of D. x linglica, linearis and x anglica for the moment.
After seeing Great Blue whales and Belugas in Les Escoumins, we did a last trip in a canoe to observe beavers in habitat. We were lucky enough to caught it on film and see at the same occasion a few strands of Utricularia vulgaris.
it is basically a copy/paste of the posts I've made on OCPS forums regarding a fieldtrip done in northeastern Quebec, July 2006, with Olivier Marthaler (thanks again!)
-------
We spent 3 days in the Reserve Faunique des Laurentides, where we visit 3 specific sites: the same one I visited last year with the D. linearis and a all green form of S. purpurea plus 2 others cited in literature that I wanted to check back the presence of D.linearis.
Here is a few highlights from our trip:
-A general view of the first bog
-Drosera anglica leaf blade
-A plant of Drosera linearis
-Drosera linearis has been seen growing in Sphagnum mosses at several places
-As you can see, the pH is fairly acidic around Drosera linearis we found. The average on 15 differents readings is 4.18. This is weither the plant is growing in moss or not.
-Not very clear, but you can see D. linearis, D. rotundifolia and D. anglica growing side by side
-Utricularia cornuta in bloom
-Olivier inspecting plants
-No, it's not the Loch Ness monster... its... a beaver out of focus...!
-Utricularia vulgaris on the lake where we saw the beaver
-Me, sorting Drosera leaves for a group photo
We also numbered the Sarracenia purpurea's phenotype and checked if we were in the presence of the 'semi-veinless' form as Carl Mazur defined in last September's CPN. In the end, I think not. With the help of Olivier 'Hawkeye' Marthaler, we numbered around 2000 plants in 2 differents classes, the 'all-green' form (f. heterophylla), intermediate form (all green with red vein but not any trace of red on the others parts of the leaves) and the 'typical red form' (must have red veins and at least some traces of red on leaves). For proper classification, the judgement was done only on leaves well-exposed to sun. The final count still need to be done, but overall we're about a ratio of 0.33 for each but with a large concentration of the 2 first classes in the first half of the bog.
D. rotundifolia, anglica and linearis were seen growing side by side (in a 6"/15 cm radius) but we aren't sure if we were in the presence of the species (anglica) or the hybrid (x anglica= rotundifolia x linearis). Seed pods were too young to judge if there was any positive seeds development.
We were unable to find the bog the second day.
On the third day, we find a location that I was unable to find 3 years ago. This site was supposed to host Drosera linearis too but we're not still sure about this. I took a few herbarium specimens for further ID. This time, a lot of D. anglica, still in an acidic bog, but the variations in sundews was quite interesting: rotundifolia, x obovata, anglica and perhaps linearis. We are still unable to confirm the presence or absence of D. x linglica, linearis and x anglica for the moment.
After seeing Great Blue whales and Belugas in Les Escoumins, we did a last trip in a canoe to observe beavers in habitat. We were lucky enough to caught it on film and see at the same occasion a few strands of Utricularia vulgaris.
