40 ON THE CLASSIFICATION OF FUNGI. 



I. TKEMELLA. J^Iostly parasitic. Gelatinous, tremulous, 

 immar^riiiati', lobate. Hjmenium universal. 



II. EXIDIA. Parasitic. Ti-emulous. Mai-gined. Hymenium 

 superior and pranular. 



III. HIRNEOLA. Parasitic. Gelatinous when wet, horny 

 when di-y. Cup or ear-shaped. Hymenium wrinkled. Outer 

 surface velvety. Large. 



IV. N.ffiMATELIA. Parasitic. Solid nucleus covered witli 

 gelatinous snb.'^fance, upon wliich Hymenium is universal. 



V. DACRYMYCES. Parasitic. Minute. Homogeneous. 

 Gelatinous. Arranged in chain-like rows. 



VI. APYRENIUK Parasitic. Minute. Gelatinous shell, 

 involving a floccose and hollow intei-ior. Hymenium smooth, 

 collapsing. 



VII. HYMENULA. Parasitic. Minute. Effused, thin, spotlike. 



VIII. DITIOLA. Panisitic. Stem supporting patella. Hy- 

 mcuium on disc. 



GASTEBOMYCETES. 



This Family comprehends five orders, viz. — 



Hypogaei. Subterraneous. Spores free. Hymenium perma- 

 nent, not becoming dusty, or liquescent. 



Phalloidei. Terrestrial. With Pileus and Stem, or Receptacle. 

 Pos.sessing a Volva. Hymenium deliquescent. 



Nidulai'iacei. Peridium containing seveiul rounded or flattened 

 bodies, on which the Spores ai*e produced. 



Trichogastres. Terrestrial. Peridium inclosing a cellular sub- 

 stance which eventually breaks up into a dusty mass of spores 

 and threads. 



Myxogastres. Mostly parasitic. Gelatinous or pulpy at first, 

 then Peridium filled with a mass of dusty spores and threads. 



Nidulariaeei and Myxogasti-es need not occupy us further. In 

 the first the Genera contain oidy minute species, and in the second 

 mostly 80. Genera of Myxogastres containing somewhat larger 

 forms afford notliing coming within the range of this work, and 

 may therefore be passed over. 



THE GENERA OF IIYPOG^T. 



The Genera contained in this Order are six in number. Tliev 



