Notes. 
OUTLINES OF C LAS S I F I C A'l I O N. 
Synopsis. 
Branch I ProlophyU. 
Class 1.— Myxor.AsrRLs, (Slime Muuld>-) 
Orders — l/eriiriclic.v. 
Culiiiiiellirer:v. 
Ljllioderine:c. 
C3luiricl)e:e. 
Cl.\.ss 2. — Sciii/:oj’HVCt.L, (Fission Fmiyi ) 
Orders — .\Iyxol>acterijci;:e. 
Cysiiphorie. 
N'emalogciica-. 
From ilie nature of ihc or|5.intsiiis included in llic prolophyia, 
It is improbable ibat many of ilicni will ever be found in the fossil 
Slate, although Renault claims to have recogni/ed sever.il species 
of bacteria in the tissues of carboniferous |)lanis. 
Branch II. — Thallophyta. 
Clas.s J. — AscoMVCKTts, (Sac Fungi ) 
Orders — Pcrisporiaceiv, 
■luberacea.*. 
I’yrenomycetcie. 
Discomycetete. 
Uredincie. 
Ustil.agineie, 
Sjihtcrop.'iidea-, 
.Melanconiea;. 
I lyphomycctcif. 
Fossil representative.^ occur in the carboniferous and later 
formations, cbictly upon icave.s and in lignite. 
CI..SSS 4.— IJasidiomvceti-s, (Higher Fungi.) 
ePr'i/r/'i— (jastci'oinycetciv. 
Hymcnomyceicif. 
Fossil representatives occur in the carboniferous. GrilUiui 
sf/ucroifcrmii, Gtisturoiiiyets />irmosus, etc. 
Class 5 —Ciilokophvcv.l, (Crecii .\Igx.) 
Orders — Froiococcoidcx. 
Congugaiie. 
Siphonin’. 
Confervoideiv. 
Fossil rejiresentaiivcs, m the form of siliceous diatom salves, 
arc especially abundaiii in the rcriijry and t,Jii.ticriiary, often 
forming extensive dej/osits known under the name of infusorial 
earth. 
Class U. — I’li.f^ai-iiyct-t, (llrown .\lg.v.) 
Orders — I’lm>osporcn-. 
Diciyotcif. 
F’ucoideu*. 
I he earliest fossil representatives of the brown alg.T occur in 
the Ui.pcr Silurian whence they pass into the laawer Devoiitan. 
1 licy appear in these early formations as jdants of great sue 
{AemiHop/ijilon), indicating that they must also have tloufi.-licd at ' 
mueh earlier jieriods, but the remains of the vegetation which 
existed (irior to the Upper Silurian are now represented only by 
a carbonaceous residue ih the form of graphite. Fnii'ophyccie ate 
found more or less abundantly in all inc later lorinations, and the 
genus Fucus is well detiiied m the Crct.iccous. 
CL.SSS 7.— CoLBocii.»;rE.i,. 'l 
Order — Coleochiutacciv. 
No fossil represcniative.s known. I 
Class $. — Riiotxmiivcu-.. 
Order — Floridem. \ I 
Fossil represciiuiivcs from the Silurian upward, and especially 
abund.int in the Cretaceous. 
Class H. — CiUKoiuiYct.L. 
Characca-. ^ 
Represented by many species m the lower Cretaceous, in die 
Tertiary and Quaternary. 
IJ 
