34 Charles E. Bcsscy 



vaguely expanded, developing" a hymenium on surfaces which are 

 eventually external. 



Family 123. Agaricaceae. Spore-fruits usually fleshy, typic- 

 ally umbrella-shaped, with hymenium on lamellae on the under 

 side'of the cap. Copriiiits, Riissiila, Psalliota, Agariciis^ Aiiiaiiita. 

 (Pf. I, I**, 198.) 



Family 124. Polyporaceae. Spore-fruit fleshy, leathery or 

 woody, from umbrella-shaped to bracket-shaped, and resupinate 

 and expanded ; the hymenium lining pits or pores. Foincs, Foly- 

 ponis, Polystictiis, Boletus. (Pf. I, j**, 152.) 

 ■ Family 125. Hydnaceae. Spore-fruit fleshy or leathery, from 

 umbrella-shaped to bracket-shaped, fruticose or rcsupinate-ex- 

 panded, the hymenium covering' the surface of warts or prickles. 

 Hydnum, Irpcx. (Pf. I, i**, 139.) 



Family 126. Clavariaceae. Spore-fruits fleshy to leathery, 

 cylindrical to clavate and fruticose, the hymenium covering' the 

 outer surface. Pisfillaria, Clavaria. ( Pf . I, i-''*, 130.) 



Family 127. Thelephoraceae. Spore-fruits cuticular or leath- 

 ery, flat, shell-shaped, capitate or branched, the hymenium smooth 

 and covering the surface. Corticiiiiu, Stcrcuui, Thclcphora. (Pf. 

 I, I**, 117.) 



Family 128. Hypochnaceae. Basidia developed upon the floc- 

 culent mycelium, forming vague superficial spore-fruits. Hy- 

 pochnus, TonicntcUa. (Pf. I, i ■'"■', 114.) 



Order Exobasidiales. Reduced and degraded Basidiosporcac, 

 related to the preceding families ; basidia undivided, more or less 

 rounded. 



Family 129. Exobasidiaceae. Parasites in the tissues of higher 

 plants, the basidia crowded into a loose h_\menium; spores borne 

 on sterigmata. Exohasidiimi. (Pf. I, i*=% 103.) 



Familv 130. Tulasnellaceae. Saprophytes; basidia rounded, 

 Avithout sterigmata. Titlasnclla. (Syllabus 40.) 



Family 131. Dacryomycetaceae. Saprophytes; basidia long- 

 clavate. branched in or on gelatinous cxplanate. cup-shaped fru- 

 ticose or capitate spore-fruits. Dacryoiiiyccs, Giicpinia, Caloccra. 

 (Pf. I, I**, 96.) 



;o8 



