Peristylus aristatus Lindl., Gen. Sp. Orchid. Pl. 300 1835. (syn: Habenaria aristata (Lindl.) Hook.f.; Peristylus exilis Wight);
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per-ih-STY-lus — Greek: peri (around), stylos (column)Dave’s Botanary
a-ris-TAH-tus — long bristle tipDave’s Botanary
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commonly known as: spiked peristylus
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Native of: n-e and s India, Sri Lanka, Myanmar
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Images by tspkumar

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It is my pleasure to present few images of Peristylus aristatus  (Orchidaceae) 

Ref-1: http://keralaplants.in/keralaplantsdetails.aspx?id=Peristylus_aristatus

Ref-2: http://florakarnataka.ces.iisc.ernet.in/hjcb2/herbsheet.php?id=3064&cat=1 

Habit: Herb 

Habitat: Wild, terrestrial, Evergreen forest floor 

Sighting: Bisle, Sakaleshpur, Karnataka, about 1000 msl 

Date: 03-08-2016


Superb!!!


Yes aristatus.

Did you open up the petals to take picture?
Flower here is not properly open, the side lobes usually go more sideways than backwards.
The ovary of Peristylus is very much parallel to the main stalk and kind of appressed to it. Your plant it seems a bit away.

Thanks …  The flowers were so tiny that it was very difficult to hold them. Took the pictures after gently blowing into them. The flowes at no 3, 4 and 5 do not belong to the plant at no 1 where the inflorescence was still immature. The flowers belong to another plant growing near by where the inflorescence contained one open flower at the base and another partially open one. Will upload supplementary pictures for your reference…


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Peristylus aristatus Lindl.
per-ih-STY-lus — Greek: peri (around), stylos (column)Dave’s Botanary
a-ris-TAH-tus — long bristle tipDave’s Botanary
commonly known as: spiked peristylus
Native of: n-e and s India, Sri Lanka, Myanmar
References: Flowers of IndiaThe Flora of British India
at Mahabaleshwar on 27 AUG 10

Have to check with Peristylus aristatus and Peristylus richardianus. I will confirm later.


Wonderful pics. Yes this looks like Peristylus aristatus.


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Re: Platanthera biermanniana (King & Pantl.) Kraenzl. ??? : 8 posts by 3 authors. Attachments (7)
Peristylus aristatus Lindl.  ???


Is it the same plant from last time. This should be different. Looks like Peristylus but I am on road right now. Will let you know later.


Yes this one looks like Peristylus aristatus with that peculiar spur and 3-lobed labellum.



Orchidaceae fortnight : Peristylus ? : Attachments (4).  6 posts by 3 authors.
Please find few pics of Peristylus for ID help. Thanks in advance.
These were found under woody area under good forest cover.

Very interesting and rare.
This looks like Peristylus spiralis to me,


Thanks … Something to keep in mind for me, while observing this next time?


For all terrestrial orchids you are perfect, its always helpful to take pics of whole plant, flower closeup from all three angles, nice view of spur and nice view of labellum !!


Cool. Will keep these in mind 🙂


This appears to me as Peristylus aristatus. P. spiralis has spiral leaf arrangement and scattered on the stem but for P. aristatus it is clustered at middle of the stem.


I can see my id is wrong. Thanks for correcting me. But the issue is not of leaf. Leaves are like that in both depending on the environment (Image of type specimen is attached). Leaves of aristatus is scattered in King and Pantling’s illustration. The main difference I see is the spur. Spur is a bit elongated in aristatus but much reduced and globular in spiralis.

But I accept my mistake and apologise for wrong id.
Thanks for pointing out.
Attachments (1) – 1 MB- TYPE Peristylus aristatus.jpg


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SK1350 04 AUG 2018 : 7 posts by 3 authors. Attachments (8)- around 300 kb each.
Location: Nagarkot, Nepal  
Date: 01 August 2018
Altitude: 6800 ft.
Habit : Wild
Peristylus tentaculatus (Lidl.) J.J.Sm. ??? or
Peristylus aristatus Lindl.  ???

No sir, I think this is Peristylus calcaratus.
Here is a pic of tentaculatus, you can check the spur.


Sorry I have been so confused with this.

There is a prominent difference between three plants
Peristylus tentaculatus: scrotiform spur.
Peristylus calcaratus: spur is elongated and a bit angular with two lobed apex.
Peristylus aristatus: Slightly elongated but rounded apex.
Your plant and the plant on Bhakta’s orchid book are Peristylus aristatus. Even my pics of P. tentaculatus and P. calcaratus are correctly identified but they are not similar to the plant shared by …
Sorry for inconvenience.
Some sketches to aid in identification is attached herewith.

I guess you have validated later this as Peristylus aristatus Lindl. since the Peristylus calcaratus is not listed in Nepal.
Could you please confirm??

Yes this should be Peristylus aristatus with that spur.

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359 ID wild Orchid: 12 high res. images.
Please ID wild Orchid,
Location: near Vannappuram, Thodupuzha, Idukki Dist., Kerala PIN:685607
Altitude: 1500fsl
Flower date: 28AUG2022, 01.45pm
Habitat: wild moisture, shady wet misty hill, wind
Plant habit: terrestrial orchid, erect unbranched, weak semi fleshy stem 04mm base diameter, annual
Height: 25cm
Leaves: alternate, elliptic, acute, fleshy soft glossy, size:08×4cm
Flower: terminal spiked racemose, clustered, size:11×7mm, green, non fragrant
Fruit:
Seed:

Camera: CANON EOS1500D +FL10x


Go with Habenaria


This looks like Peristylus aristatus.


Yes, it is Peristylus aristatus, dear …, thank you very much for ID my plant and great appreciation,


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