Photo: Tiny Earthstar:
« Very small earthstar
« balloon in diameter 10-16 mm. (rare to 20 mm)
« star-rays 5-10 (that's a lot for the total size)
« balloon has a stem (max 1 mm long)
« mouth-zone is fibrillose (fimbriate)
« mouth-zone often has an elevated court
« mouth-zone often sharp limited by ring-furrow
« habitat-type moss-rich is one of the favorites
(Geastrum minimum Schweinitz)
Syn: Geastrum cesatii Rabenhorst
NMV Ga 211070
Tiny Earthstar is a pioneer in middle and inner dunes, especially in the neighbourhood of drifting sand.
Often places sometimes slithery of alges, moss-rich poor grass with tiny vegetation.
Also places with Hawthorn, Sea Buckthorn, and Common Dwarf Willow; there Tiny Earthstar is growing along the sand-pathes in the dunes
Tiny Earthstar is a pioneer, not loyal to one place, and certainly not a fairy-ring former.
Tiny Earthstar comes and goes, each time finding new appropriate places.
Amsterdam urban area: no.
Pleistocene area: no.
Northsea dunal area: Dunal earthstar.
Photo: Mouth-zone: Often is not always
Photo: Notice the rabbit dung ...
Photo: Only old and dry the stem is visible
Mistakability Tiny Earthstar:
- Crowned Earthstar (Geastrum coronatum)
Often the balloon is broader than high,
court and mouth-zone color is equal to the balloon color.
- Dwarf Earthstar (Geastrum schmidelii)
Mouth-zone is plicate-furrowy. Baldy balloon,
stem is little bit longer (2 mm), format bigger (but thinner).
- Field Earthstar (Geastrum campestre)
Mouth-zone is plicate-furrowy (conical, and sharp limited by a ring-furrow, and lighter than the balloon),
stem is short, robust, pale (0,5-2 mm), apophyse is rounded bag-shaped, encrusted
debris is existing until late february, no scar, look-alike star-rays.
There are two clear different field-marks between Tiny Earthstar and Field Earthstar:
mouth-zone and balloon-surface. One can feel the difference !
Photo: Notice stem and balloon-surface
How to exclude mistakability:
- Notice the elevation of the court of the mouth-zone
- Notice the court-color and the color of the mouth-zone (same as or lighter than the balloon-color)
- Notice the balloon-shape
- Notice the habitat-type
- Look at the bottom of the earthstar:
- Is earthar fixed to the ground (encrusted debris)
- Do the star-rays have a scar (should not be)
- If this is not helpful: dry the earthstar,
and see what changes during the dry-process: stem, apophyse, collar, mouth-zone
Photo: Rabbit dropping right back shows the scale. Tiny Earthstar is realy tiny.
Photo: Apophyse: rounded bag-shaped
Tiny Earthstar field-marks:
- Species size: very small
- Stem (below balloon): short, slender-solid, pale, apophyse rounded bag-shaped
- Balloon-in-diameter: 3-12 mm.
- Balloon-surface: floury (fine white cristalline, older disappearing grains)
- Balloon-shape: ofter higher than broad
- Balloon-color: young light-grey, crème. light-brown, sometimes dark-grey or dark-brown
- Balloon-mouth-zone: fimbriate, (often on an elevated) court, (flat to) conical, and often with ring-furrow
- Balloon-mouth-zone: color of count and mouth-zone lighter than balloon-color
- Star-rays-number: 6-12
- Star-rays-in-diameter: 0.8-4 cm.
- Star-rays-thickness: fresh upto 2 mm.
- Star-rays-top: color young creme, light-beige, older brown, skin peeling off
- Star-rays: encrusted debris
- Star-rays-scar: no
- Star-rays: non-hygroscopic (rays-tips sometimes are curling)
- Star-rays-bottom: color grey, bald after encrusted debris is gone
Chrispijn, R. ed. (1999), Champignons in de Jordaan (De paddenstoelen van Amsterdam), Schuyt en Co, 162-163.
Gerhardt (2006), De grote Paddenstoelen Gids (voor onderweg), Tirion Natuur, 616.
Hansen, L & K. Knudsen (1997), Nordic Macromycetes, Kopenhagen, Vol 3, 345.
Jalink (1995), De aardsterren van Nederland en België, Coolia 38 supplement, 59-60.
Pegler, e.o. (1995), British puffballs, earthstars and stinkhorns, an account of the british gasteroid fungi, Royal Botanic Gardens, kew, 1995, 255 pp.
Vermeulen (1999), Paddestoelen, Schimmels en Slijmzwammen van Vlaanderen, Wielewaal, Turnhout, 541.