HYUENOMYCETES. 



Synopsis of HYDNEI. Fries Ep. 



Genus 25. HYDNUM, L. 96 Species. Fries Ep. 



Hymenial processes concrete, sijine-like, free. Basidia firm ; 

 sterigmata cliiefly quaternate. 



Genus 26. SISTOTREMA, Pers. 5 Species. Fiies Ep. 



Hymenial processes inferior, sub-discrete, forming dentate or 

 spinous, curved, lamellulae, irregularly disposed; Basidia firm 

 teti-asporous. 



Genus 97. IRPEX, Fries. 20 Species. Fries Ep.' 



Hymenial processes concrete, sub-coriaceous, spine-like, dis- 

 posed in ranks or reticulations, anastomosing at the base. 



Genus 28. RADULUM, Fries. 10 Species. Fries Ep. 



Hymenial processes of no constant shape, commonly elongated, 

 more or less truncate or obtuse, scattered or collected in 

 patches. Resupinate, epixylous. 



Genus 21). PHLEBIA, Fries. 3 Species. Fries, Ep. 



Hymenium amphigenous, corrugated, then smooth, with in- 

 terrupted wrinkles ; rcsupinato-efl'used, cartilaginous when dry. 



Genus 30. GRANDINIA, Fries. 7 Species. Fries Ep. 



Hymenial processes papillose, or rather granulosc, close ; 

 effused; substance forming a somewhat soft crust. Basidia 

 filiform, interlacing, monosporous. 



Genus 31. ODONTIA, Fries. 5 Species. Fries Ep. 



Hymenial processes wart-like or papillose, rarely spine-like, 

 multifid at the apex, resupinate ; substance fibrous, dry, not 

 waxy. Basidia filiform, monosporous. 



Genus 32. KNEIFFIA, Fries. 1 Species. Fries Ep. 



Hymenium beset with rigid bristles ; substance soft, flocculose. 



Synopsis of AURICULARINI. Fries Ep. 



Genus 33. CRATERELLIUS, Fries. 12 Species. Fries Ep. 



Hymenium inferior, sub-ceraceous, with indistinct or raised 

 veins ; pilous stipitate, tubiform, or infundibulifonu, between 

 fleshy and membranaceous. Terrestrial. 



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