TABLE 3. — Morphological comparison of Geastrum crystallinum sp.nov. and close related species based on descriptions by Baseia et al. (2003); Trierveiler-Pereira et al. (2011); Kuhar et al. (2012); Sousa et al. (2014, 2019) and Assis et al. (2019). In bold, characteristics of the new species. Geastrum triplex Jungh.Geastrum smardae V.J. StanekGeastrum saccatum Fr.Geastrum corollinum (Batsch) Hollós Geastrum caatingense J.O. Sousa, M.P. Martín & BaseiaGeastrum caatingense J.O. Sousa, M.P. Martín & BaseiaGeastrum hyalinum Freitas-Neto, N.M. Assis, J.O. Sousa & BaseiaGeastrum lageniforme Vittad. Geastrum floriforme Vittad.Geastrum floriforme Vittad.Geastrum crystallinum sp. nov.Exoperidi47-64 mm diam., 5-8 saccate, forming a prominent collar around the endoperidium, rays involute, non-hygroscopic25-30 mm diam., 6-8 saccate, forming acollar around the endoperidium, rays revolute, split-ting, to about the middle non-hygroscopic8-50 mm diam., 6-8 saccate, some rays are split at the apex, involute or not, non-hygroscopic6-19 mm diam., saccate to slightly arched, 8-11 strongly hygroscopic rays that cover the endoperidial body 7-29 mm diam., 6-10 rays revolute when fresh, involute, rolling up above the endoperidial body or planar when dry, hygroscopic7-29 mm diam., 6-10 rays revolute when fresh, involute, rolling up above the endoperidial body or planar when dry, hygroscopic28-34 mm diam., 5-7 triangular rays, revolute, non-hygroscopic7-45 mm diam 6-8 saccate, long rays, slender and with longitudinal ridges on the external layer, non-hygroscopic.,9-mm diam., 6-8 s accate, revolute rolling up under basidioma, non-hygroscopic.,9-mm diam., 6-8 s accate, revolute rolling up under basidioma, non-hygroscopic5-17 mm diam., 7-9 triangular rays, revolute, non-hygroscopicEndoperidium18-25 mm, sessile, globose, yellowish brown to dark brown when freshSessile, dark blond5-16 mm, without crystalline matter, depressed-globose, sessile, greyish greenSessile, globose, greyish beige 6-16 mm, ses- sile, with glabrous surface with presence of crystalline matter, orangish gray, brownish gray to yellowish white6-16 mm, ses- sile, with glabrous surface with presence of crystalline matter, orangish gray, brownish gray to yellowish white6-17 mm, sessile, with protruding hyphae, orange white to pale orange8-13 mm, ses- 5-17 mm, ses- sile, with- sile, without out crystal- crystalline line matter, matter, sub-pale orange globose to when fresh, pyriform, vio- to blond let brown to greyish brown5-17 mm, ses- sile, without crystalline matter, sub- globose to pyriform, vio- let brown to greyish brown3,5-6 mm, sessile, with small protrud- ing hyphae, whitish to whitish orangePeristomeFibrillose, delimited distinctlyFibrilloseFibrillose, distinctly delimited, slightly darker than endoperidiumFibrillose, dis- tinctly delimited Fibrillose, strongly coni- cal, distinctly delimitedFibrillose, strongly coni- cal, distinctly delimitedFibrillose, flat, distinctly delimitedFibrillose, con- color with endoperid- ium, distinctly delimitedIrregularly pli- cate, becom- ing fibril- lose to lacer- ate with age, not delimited, conicFibrillose, flat to mam- miform, not delimited distinctlyGlebaNot observedNot observedNot observedBrownGrayish brownYellowish white Not observed Brownish greyBrownish greyWhitishCapillitiumYellowish to brownish hyphae straight, solid or with narrow lumen, 2.0-6.0 µm diam., covered or not with amorphous materialLight brown, unbranched or shortly branched, 3.0-4.0 µm diam.Yellowish to slightly brownish hyphae straight, with wide or narrow lumen, covered with amorphous material, 2.0- 6.0 µm diam.Hyphae thick walledYellowish, thin- walled, 3.8-6.7 μm diam., sur- face encrustedHyaline, thin- walled, 2.7-4.7 μm diam., surface encrustedYellowish, thin-walled, 2.5-7.0 µm diam. hyphae straight to more or less sinuous, with narrow lumen, covered with amorphous material Brownish, walls straight thick 4.6-7.1 μm diam., surface light encrusted, glabrous, lumen evident, not branched,Brownish, walls straight thick 4.6-7.1 μm diam., surface light encrusted, glabrous, lumen evident, not branched,Hyaline, thinwalled, 1.3-4.3 μm diam., surface encrustedBasidiosporesBasidiospores golden brown to brownish, densely orna- mented with more or less columnar pro- cesses, 4.5- 6.0 µm diam.Globose, 4.0- 5.5 µm diam.Globose, brownish, ornamented with dense high columns 4.0-5.5 µm diam.globose, 3.5- 4.0 μm wide, verrucose, with ≤0.4 μm, long colum- nar verrucaeSubglobose, brownish, ver- rucose (apex slightly pointed or rounded, with some inconspicu- ous apex with confluent tips), 5.7-6.2 μm diam.Globose to subglo- bose, hyaline (sometimes flattened with a semi-ellip- tical shape), 3.6-5.0 × 3.6- 4.9 μm diam.Globose, yel- lowish brown, with colum- nar ornamen- tation, 4.0- 5.0 µm diam.Globose, brownish, warts incon- spicuous, finely verru- cose, 2.7-3.1 µm diam.Globose to subglo- bose, hyaline (sometimes flat- tened with a semielliptical shape), 3.8-4.9 μm diam.

Published as part of Barbosa, Kairo Dourado, Oliveira, Renan De Lima, de Andrade de Lima, Alexandro, Marinho, Paulo, Baseia, Iuri Goulart & Santos Ferreira da Cruz, Rhudson Henrique, 2025, A True global hotspot of biodiversity: discovery of Geastrum crystallinum sp. nov. and Geastrum complanatum sp. nov. (Basidiomycota, Geastraceae) for Brazilian Cerrado, pp. 44-45 in Cryptogamie, Mycologie 46 (3) on page 44, DOI: 10.5252/cryptogamie-mycologie2025v46a3, http://zenodo.org/record/17091248