Notes. 
.\ll. — F ilk IS.E. 
(Ferns.) 
.\. l.«i>(osiK>rangutc. 
t. HiMnosjkorous. 
Ortftrt. 
1. Filkcs. 
itpruiJactiim 
vboltjr atuttlaale: vfeo 
t<re>c« . dHrdx t>r cateanoa 
Aoi iiTWoa of the paaoi 
axis nure ranciy bjr bdh* 
or ttf iKi|aMfc4'’a< 
or even b]r ajaicxaiy. 
1. Prothallus } well 
fornted. 
.AmheriJium r 
Heleros|H)rous. 
OrJtrs. 
I. Saivinucr:i‘. 
Marsilucni'. 
.^sexual rejirodiic* 
wholly suliurdiiiJte. 
1. Troihallus * well 
formed. 
Anlhcridium. 
I 6 
3. 5|>em)atofc>ids 
noiiic. 
3. S^ienn.'iioxoid^. 
I. rroihallus > well 
„ formed. 
II. .\rchegvDU ; 
1. rrothallus . 
formed. 
II. Arehegonia. 
t 5 “ III. Oosjiherc (Ovum.) III. Oo*j>herc (Ovum ) 
= 4 X J V. Ooxporc. 
5 5 X V. Emliryo rudi- 
< mentarr. 
(» X VI. Normal plant. 
I 7 X VII. S|«Mo|)hyll. 
j 8 X VIII. s*|>orangia. 
I 9 X IX. Sjiorcs. 
4 X IV. Oos|M>re. 
3 X y. Kmliryo rudi- 
menury. 
6 X VI. Normal plant. 
7 X VI I. Si>orocarp, 
$ X VIII. S(>oran|!ta 
i and f 
D X l.K. S|>orc3 , 
and * 
It. Kus|>orangiale. 
3. Hommiwrous. 
( ^rJtrs. 
1 . (^(ihioglossaccii'. 
:J. Maraitiaceif- 
.-\scxual reproduc- 
tion suliordinale, by 
means of adventiiious 
buds on the roots. 
1. rrothallus ? well 
formed 
2. .\(itheridium / 
3. Spennalozuids 
inoiilc. 
I. Vroiliallus ? well 
formed. 
II. .\rchegonia 9 
III. Oospliere (Ovum ) 
I X IV. Oospoi-e. 
0 X V. Kmhryo rudi- 
mentary, 
G X VI, Normal jilani. 
7 X Vli. SiKjrophyll. 
^ X VIH. S|iorangia. 
9 X i.V. Sjiorcs. 
Br,\nch Iv.-Pter 
Plants with a 
(Vascular 
Sexual genenulun 
XIII, — KyuihETiN.r;. 
(Horse-tails.) 
Ilctcrosporous. 
Homospi 
On/ers. 
I. HquisetaceiL-. 
Calamita- (?) 
.\scxual rejiroduc- 
iton subordiiiaic by 
means of tubers. 
1. Prothalhis $ well 
developed. 
2. .Viilheridium ^ 
3. S|>cniuto.roids 
mulilc. 
I. Prothalhis 5 well 
developed. 
II. .\rchegonium i 
III. Oospherc (Ovum) 
•I X IV. Oospore, 
f) X V. Embryo rudi- 
rnenlary, 
G s VI. Nonnal phinl 
7 X VII. iJcales of fer- 
tile spike. 
8 X VIII. Sporangia. 
9 X I X. Spores with 
elaiers. 
On/ers. 
1. Annuhariesf 
2. Aslcryphylliln* 
Represented by fos- 
sil forms only. 'Fbc 
succession .as in the 
Ilctcrosporous Lycopo- 
dimu. 
I 
