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Trichoglossum hirsutum

Posted by
Johan Dierckx (Wijnegem, Belgium) on 19 December 2011 in Plant & Nature and Portfolio.

Trichoglossum hirsutum (NL: Ruige aardtong / EN: Black Earth Tongue, Hairy Earthtongue / DE: Gemeine Haarzunge / FR: Trichoglosse hirsute) is one of several black earth tongues that occur locally. All require a microscope for positive identification. Velvety hairs on both the stipe and fertile "head" are the primary distinguishing feature of Trichoglossum species. This character separates the genus from Geoglossum, whose species have a relatively smooth surface, but are otherwise similar in appearance. ("Hirsutum" means "hairy" in reference to the velvety hairs present on the fruitbody.) Fruitbodies consists of a club to lance-shaped, compressed head-like portion (often grooved) supported by a stalk up to 7.5 cm tall. Both stalk and head have minute spines (setae) that are visible with a hand lens (In this image clearly visible !). The species is on the Red list stated as "rare" and "volnurable".

Image: Ranst (B) - 30/09/2011

Canon EOS 400D 1/4 second F/5.6 ISO 200 150 mm

© Johan Dierckx

The photos on this site are copyrighted, which prohibits anyone to use them to sell, give away, use in email or newsgroups, use in a homepage or otherwise showing to the public without my explicit, prior, written permission. Please feel free to use the "contact"-button below to contact me with any questions.

All species are photographed in their natural habitat, without cutting or capturing them, and with maximal respect and the least possible disturbance to the environment.

(To see species in the same taxonomic rank (Kingdom, Phylum, Class, Order, Family, Genus), please use the tags provided with the image. The last tag is the Iso-code for the country where the image was taken. Image-date in DD/MM/YYYY format.)

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Martine from bousval, Belgium

Wouha!!! superbe pDC! j'aime beaucoup!

19 Dec 2011 2:09pm

@Martine: I like making images with a limited DOF. I think it can add lots of depht in the image and helps to smoothen the background. Glad you like this one too, Martine.

sietske from roermond, Netherlands

mooi hoor en weer superscherp!
groetjes Sietske

19 Dec 2011 3:51pm

@sietske: Een wat aparte soort die we niet dadelijk met "paddenstoel" associëren, maar net daarom ben ik er extra door gefascineerd ... Fijne dag nog voor je !

Lia from Zwolle, Netherlands

Mooie foto Johan, haartje scherp en hoewel hij eind september is genomen doen de kleuren nog totaal niet aan de herfst denken.

19 Dec 2011 8:48pm

@Lia: Klopt, Lia, de herfstkleuren waren heel erg laat dit jaar hier en mos kleurt meestal niet echt in herfstkleuren (op enkele uitzonderingen na) zodat deze niet echt een herfst-sfeer heeft. Ik vond het toch wel een opmerkelijke soort - atypisch "paddenstoel" zeg maar - en dat wekt mijn interesse dan weer om er meer over te weten te komen. De natuur blijft me telkens weer voor verrassingen stellen ...

Canon EOS 400D
1/4 second
ISO 200
150 mm