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Hibbertia stricta subsp. stricta (TBC)

5 images

Unidentified at Suppressed - 11 Sep 2019
Unidentified at Suppressed - 11 Sep 2019
Unidentified at Suppressed - 11 Sep 2019
Unidentified at Suppressed - 11 Sep 2019
Unidentified at Suppressed - 11 Sep 2019

Identification history

Other Shrub Hibbertia stricta subsp. stricta 18 Sep 2019 JackieMiles
Other Shrub Hibbertia fasciculata 11 Sep 2019 Paul Whitington

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Author's notes

Has just started to flower.

9 comments

   11 Sep 2019
Oh dear, the dreaded narrow-leaved Hibbertias. If you can bring a specimen along on Sunday I'll see what I can do with it. Can't get it just on photos I'm afraid.
   11 Sep 2019
Will do, Jackie.
   11 Sep 2019
Will do, Jackie.
   11 Sep 2019
Just in case I forget about the Hibbertia on Sunday, I've added 3 more photos that might help to determine the species. I've followed the key in PlantNet here. Photo 3 shows that the stamens are all on one side of the carpels and that there are 2 carpels. Photos 3 & 4 show that the carpels are glabrous and the outer surface of the sepals are glabrous. Photo 5 shows, I think that the leaves are crowded and clustered - rather than scattered. So this seems to lead us to Hibbertia fasciculata.
   12 Sep 2019
Hi Paul, Well, just make sure you remember! I really need to have these little devils in the hand to be sure of them. There's been a bit of revision lately and I don't think the Flora of NSW tells the full story anymore, alas.
   12 Sep 2019
No problems Jackie. I’ll make sure I bring a sample along.
   14 Sep 2019
Hi Paul, Now that Max and I have done a bit of heath trawling ourselves, and seen both fasciculata (Other Shrub Hibbertia fasciculata (Bundled Guinea-flower) on 13 Sep 2019) and stricta (Other Shrub Hibbertia stricta subsp. stricta (A guineaflower) on 13 Sep 2019), I'm thinking what you have here is closer to stricta. I'm pretty sure I can see hairy carpels in photo 3 (fits stricta, not fasciculata) and the leaf has that plump midrib filling the space between the revolute leaf margins typical of the stricta group. However it looks to have 10 stamens, which is 3-4 too many! Rats. H. dispar has 4-9 stamens usually most on one side of the carpels and 0-2 on the other side, but my only photo of it shows the leaves covered in long fine hairs. So a specimen is still needed!
   14 Sep 2019
You're right, Jackie. The carpels are definitely hairy. And the leaf has a plump midrib filling the space between the revolute leaf margins. I've counted the stamens on several flowers and get 10 pretty consistently, with the odd 9. They're definitely all on one side of the carpels. The leaves are 8mm long, 1mm wide with acute apex. Flowers are axillary and have 7mm long petals and 6mm long sepals, which are minutely hairy. The hairs on the stems and leaves are short and bristle-like, either single or in pairs. Does this make it Hibbertia riparia? The photos of Steve Burrow's specimen from Bournda look very much like mine. Anyway, I'll bring the specimens tomorrow, together with a bunch of photos I took with my Tessovar (high powered stereomicroscope).
   18 Sep 2019
Hi Paul, The plot thickens on your Hibbertia. The specimen actually keyed readily to H. calycina in the Vic Flora and matches the description well, but neither Vic nor NSW Flora show it being near here (one dot near Mallacoota in paper Vic Flora seems to have disappeared in the on-line version). It's not on our list. I might just have to send it off and in the meantime I'll suggest stricta as being the closest thing that is on the list, but not confirm it (since it definitely isn't fasciculata). Sigh. Hibbertias, I hate 'em.

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Sighting information

  • 1 - 3 Abundance
  • 11 Sep 2019 8:07 PM Recorded on
  • Paul Whitington Recorded by
  • Website Reported via
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