346 THE PLANT PHYLA 
leathery or woody; hymenium lining 
pits or pores.—Boletus, Polyporus, 
Fomes, Polystictus. 
Family 120. Hydnaceae. Prickly Fungi. From um- 
brella-shaped to bracket-shaped, 
fleshy to leathery or woody; hymen- 
ium on warts or prickles—Hydnum, 
Irpex. 
Family 121. Clavariaceae. Coral Fungi. Cylindrical 
to clavate and fruticose, mostly 
leathery ; hymenium superficial.—Pis- 
tillaria, Clavaria. 
Family 122. Thelephoraceae. Leathery Fungi. Flat, 
shell-shaped, capitate or branched, 
mostly leathery; hymenium superfi- 
cial—Thelephora, Corticium, 
Stereum. 
Order ExopasipiaLes. Reduced and degraded plants 
related to the preceding families; 
basidia undivided. 
Family 123. Dacryomycetaceae; 124, Tulasnellaceae; 
125, Hypochnaceae; 126, Exobasid- 
iaceae. 
Order TREMELLALES. Jelly Fungi. Reduced and degrad- 
ed plants related to the preceding 
families; basidia divided vertically. 
Family 127. Sirobasidiaceae. 
Family 128. Tremellaceae. Basidia collateral, spore 
fruits open.—Tremella, Exidia. 
Family 129. Hyaloriaceae. 
Order AURICULARIALES. Ear Fungi. Reduced and 
degraded plants related to the preced- 
ing families; basidia divided trans- 
versely. 
Family 130. Auriculariaceae. Hymenium exposed, on 
a gelatinous, foliose or vague spore 
fruit.—Auricularia. 
Family 131. Pilacraceae. 
Class 17. TELIOSPOREAE. Brand Fungi. Parasitic, much 
reduced plants, producing erumpent 
sori (but no definite spore fruits) 
