74 
HYMENOMYCETES 
casual alien, introduced in refuse of Australian wheat. 
Recorded from Worcestershire by Mr. Carleton Rea, in 
Nov., 1902. 
CLATHRUS 
( Clathrus , a lattice—from the latticed receptacle) 
C. cancellatus ( cancellatus , latticed—from the lattice-like 
receptacle), “ Cage Fungus.” 
At maturity resembling a hollow latticed sphere (4 x 3J in.), 
vermilion or like dingy red coral. Beautiful, but abomin¬ 
ably foetid. In sheltered woods and gardens in late ant., 
chiefly in the West of England. Rare. Probably occurs 
only as an alien introduced with plants. 
Sub-order HYMENOMYCETES 
Hymenium naked; basidia and spores exposed in the 
mature plant. 
KEY TO THE FAMILIES 
I. TREMELLINACEiE (Gelatinous Fungi). —Hymenium spread over 
a gelatinous surface. Sporopbore gelatinous when moist, horny 
when dry. 
II. CLAVARIACEiE (Club-bearing Fungi).—Hymenium spread over 
erect, simple, or branched clubs ; in one genus (Sparassis) over 
large, leafy, coalescing branches. Sporophore everywhere 
covered by the hymenium. 
III. THELEPHQRACEiE (Leathery Fungi).—Hymenium on one side 
of the sporophore, which may be either resupinate, dimidiate, 
or provided with a central stem. 
IV. HYDNACEAE (Teeth-bearing Fungi).—Hymenium spread over 
teeth, spines, or granular projections. Sporophore resupinate, 
dimidiate, or with a central stem. 
V. POLYPORACEAB (Pore-bearing Fungi).—Hymenium lining the 
interior of small pores, tubes, or shallow depressions. Sporo¬ 
phore resupinate, dimidiate, or with a central stem. 
VI. AGARICACE^l (Gill-bearing Fungi).—Hymenium spread over 
the surface of flat radiating plates ( = gills or lamellae). Sporo¬ 
phore resupinate, dimidiate, or with a central stem. 
