 Spores of Hydnellum are almost spherical to oblong and tuberculate , and are brown in mass . The basidia ( spore @-@ bearing cells ) are narrowly club @-@ shaped and usually four @-@ spored ; there are no cystidia in Hydnellum . Three types of hyphae are found in the flesh of Hydnellum : generative hyphae ( thin @-@ walled , not inflated ) ; skeletal hyphae ( thick @-@ walled and narrow ) ; and thin @-@ walled gloeoplerous @-@ like hyphae , which stain with methyl blue . 
