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The Dew Line

  • #181
The new leaves on your "alba" seem to be getting a lot of red for that color form. I would agree, though, the other one appears to be a hybrid. The leaf shape kind of gives that away too.
 
  • #182
One possible way is to compare the flower structures. Unfortunately I don't have any D. capensis white flower shots and the shots I have of D. capensis and D. aliciae flowers are not at the same magnification as the supposed hybrid flower pictures I have. Comparison of D. capensis vs D. capensis × aliciae vs D. alicae flowers.

Click on thumbnail for larger image.

<a href="http://s120.photobucket.com/albums/o182/Not_a_Number/Drosera/capensis%20x%20aliciae/?action=view&current=comp copy_zps83727348.jpg" target="_blank"><img src="http://i120.photobucket.com/albums/o182/Not_a_Number/Drosera/capensis%20x%20aliciae/th_comp%20copy_zps83727348.jpg" border="0" alt="Photobucket" ></a>
flowers are not to scale (different maginfications and sized for the photo)

I have some D. alicae which should flower within a week or two and I can get better shots. No D. capensis in flower though.

Looks to me the anthers are more D. aliciae-like but not doesn't seem all that different between the species to begin with. Better detailed shots are needed of the species.

See this ICPS article on Drosera hybrids for more information.
 
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  • #183
Looks to me the anthers are more D. aliciae-like but not doesn't seem all that different between the species to begin with.
The anthers seems almost identical in all. It's difficult for me to see much differentiation between the cape & the hybrid flower - anthers & stigma are very similar. Petal color & shape are different but color is easily influenced by lighting & shape may vary depending on environment (to some degree anyway). Shame the hybrid's style wasn't forked like the aliciae.... :headwall:
 
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  • #184
Color needs identical light sources (not the case). Petals would have to be removed and pressed or mounted on slides to compare shape. The sepals, calyx and seed might be different enough to help. I doubt it. Let's see if this thing produces seed. Both D. aliciae and D. capensis have a 2n=40 however some sources give 2n=80 for D. aliciae. Even so there is an even chance these are fertile. Capsules don't seem to be swelling much but neither do D. capensis.

BTW: I got germination from GA3 treated seeds of the tetraploid D. × beleziana (aka Dr. Frankensnyder's Monster):
IMGP7972copy.jpg


This could be the beginning of the end as they take over the world!
 
  • #185
BTW: I got germination from GA3 treated seeds of the tetraploid D. × beleziana (aka Dr. Frankensnyder's Monster):
Congrats on the germination - trying to cheat mother nature w/ the GA3? :lol:

One of my plants flowered but is almost a month behind John's. The pods are swelling and the 1st one should be ready for harvest within a week or so (in theory).

On the D. ultramafica vs spatulata, it sounds like Herr Fleischmann believes the latest plants being shared everywhere are actually D. ultramafica x spatulata hybrids - not pure spatulata. I currently have 2 of the 'real' seedlings looking like they will survive (I know - famous last words) and another needing a miracle. At least we're getting out of the hotter weather - so they have a better shot at survival. ???
 
  • #186
The anthers seems almost identical in all. It's difficult for me to see much differentiation between the cape & the hybrid flower - anthers & stigma are very similar. Petal color & shape are different but color is easily influenced by lighting & shape may vary depending on environment (to some degree anyway). Shame the hybrid's style wasn't forked like the aliciae.... :headwall:

Might need to look at more microscopic characteristics to see intermediate state. I have been taking lots of microscope pics of seeds and could see that this was the case for the x obovata and x beleziana. So maybe same could be observed with capensis x aliciae even if the seeds being produced are not fertile.
 
  • #187
Drosera helodes
IMGP8008copy_zpsd8036077.jpg
 
  • #188
intermedia x capillaris
DSC_0001_zpsd00e81f2.jpg


proooobably dichotoma
DSC_0003_zps7d5e9165.jpg


rotundifolia
DSC_0005_zps482dba76.jpg


DSC_0018_zpsa11b07fe.jpg


spathulata x capensis
DSC_0006_zpsc089b07a.jpg


pygmy dews with some flowers
DSC_0010_zps2417908d.jpg


DSC_0011_zpsa2e14fe3.jpg


DSC_0012_zpsec921a3d.jpg


strange filiformis tree
DSC_0020_zps08a5b6fc.jpg
 
  • #189
Drosera x [capillaris Pasco Giant x rotundifolia 'Charles Darwin']

8014090631_4b590f84b6_b.jpg


Made the plant look a little too green in the picture. It's more of a yellow colour.
 
  • #190
Oh no! Another one of Dr. Frankensnyder's freaks!
 
  • #191
I need to keep a closer watch on this thread! I've been missing out. Awesome pics, people.
 
  • #192
D. falconeri (needing another hair cut - gotta do it couple times a year now)
IMGP8052_zps96ba6543.jpg

IMGP4057copy.jpg

just after the last haircut
IMGP3640.jpg

before
IMGP2707.jpg
 
  • #193
D. falconeri is so beautiful! I think I will buy one for myself :)
 
  • #194
Re: hybrid

I managed to get some better photos of a D. aliciae flower, unfortunately the anthers were stuck together and it was literally closing before my eyes.

Obermeyer's* description of D. aliciae inflorescence:
"Inflorescence with the base of each scape exserted horizontally from the leafs rosette, subsequently erect, 15-40 cm. tall-firm, bearing 2-12 secund flowers; pedicel, up to 8 mm. long. Calyx-lobes c. 5 mm. long, broadly ovate, obtuse. Petals broadly obovate-cuneate, c. 10 mm. long purple. Stamens with the filaments flattened and the connective dilated. Styles forked from the base, the branches shortly 2-3-fid and dilated at the stigmatic apex. Capsule ovoid; seeds fusiform, with the testa extended on both sides."

No mention of hairs (or glands for that matter) on the scape.

IMGP8065copy_zpsab42f591.jpg

IMGP8062copy_zps6fcc30f1.jpg


Obermeyer* on D. capensis:
"Inflorescence with the leafless, axillary scape curved outwards below, about 25 cm. long, firm, bearing some small broad-based setae beside the glandular pubescence; pedicels up to 8 mm. long, ascending; flowers 15-30, secund, close together. Calyx-lobes c.5 mm long, sparsely setose. Petals broadly obovate, up to 15 mm. long, pink to reddish purple or mauve. Stamens short with a rhomboid connective, the locules diverging below. Styles divided from the base, stigma epical, swollen. Capsule oblong, 4 mm; seeds fusiform, 0.8 mm. long with the testa beaded-papillate, with an oblong pale extension of the testa at the apex, the basal extension small."

Note mention of setae and glandular pubescence on the scape.

I have no close up photos of D. capensis flowers or scapes but here are a few from BobZ's photofinder:
http://www.sundew.co.kr/g-image/sundewflower/f8.gif
http://www.cpukforum.co.uk/uploader/user_uploads/UNbc_capensis_flower.JPG
http://farm6.static.flickr.com/5308/5554586899_28b008acd7_b.jpg
http://img107.imageshack.us/img107/4634/droseracapenislargeleaf8lz.jpg
http://www.utricularien.de/karnivoren/kultur/bilder/d_capensis4.jpg
http://kendy.termiter.cz/masozr/dc4.jpg

The red glands on the scape, pedicels and sepals doesn't appear to be prominent on D. capensis however if they are pale or colorless on the white flower form they may not be all that apparent in the photos.

Here are some shots of the presumed hybrid: note the red glands
IMGP8067copy_zps195edabe.jpg

IMGP8071copy_zpsb6989399.jpg

IMGP7920copy.jpg


Maybe there are some intermediate characteristics showing. Maybe not. More detailed photos of D. capensis are needed.


*The Flora of Southern Africa Vol. 13 - A.A. Obermeyer
 
  • #195
My drosera burmannii is growing so fast.
7C79AD0A.jpg
 
  • #196
Awesome! Great dew production :)
 
  • #197
NAN got some capensis flower pics for comparison including D. capensis x spatulata

D. capensis "red"
DSC_00030001_28.jpg

DSC_00070002_1.jpg


D. capensis "narrow leaf"
DSC_00100003_4.jpg

DSC_00130004_2.jpg



D. capensis x spatulata
DSC_00150005_3.jpg
 
  • #198
Looks like ive got a flower on the way!


595039AA.jpg
 
  • #199
here's my petiolaris collage/collection:
thepetiolariscomplex.png


starting from left, going down:
paradoxa, cauduca, ordensis, fulva, broomensis, kenneallyi (you think it looks bad, you should've seen it last year), lanata, derbyensis, falconeri, darwinensis, dilatatopetiolaris
 
  • #200
Beautiful collection! Especially the D. falconeri and D. lanata. Nice collage, too.
 
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