I 2 I 
the life-history of Lycopods. 
the form as a new species. The prothalli have been cultivated 
on peat up to the formation of archegonia. For the detailed 
description of the sexual generation of this Lycopod, I beg to 
refer to a forthcoming number of the Annals of the Buitenzorg 
Garden. It will suffice to say only a few words here. 
The prothallus belongs to the cernuum-type, still it differs 
more from the prothallus of L. cernuum than that of L. 
inundatum as known by the researches of Professor Goebel. The 
germinating spore begins by forming a globular body, what I 
have called the ‘ tubercule primaire,’ in the prothallus of 
L. cernuum. Generally after a certain period of rest, several 
thin branches or filaments are projected from this ‘ tubercule 
primaire.’ As a rule one of these branches thickens, after- 
wards continues its growth, and produces the sexual organs. 
Foliaceous lobes, like those produced on the apex of the 
prothalli of L. cernuum and L. inundatum , are not formed here. 
In a few instances very small prominences on the top of the 
prothallus might be considered as beginnings of rudimentary 
lobes. 
Attempts to germinate spores of L. curvatum , Sw., a plant 
still considered by me as a distinct species, have not been 
successful until now. A few days after having been sown, the 
spores began to form small ‘tubercules primaires.’ These 
organs kept alive for eight or ten months in my laboratory, 
but could not be induced to protrude filaments and did not 
continue their growth. 
There is another more general, and I should say more 
interesting, point of view from which Lycopod life-history 
may be considered. I mean the bearings of the investigations 
in the subject upon our views regarding the transitions between 
different groups of Cryptogams. Being still convinced that 
I have not attached too much value to these theoretical 
considerations, I am sorry I must confess that what I have 
briefly said on the four species newly investigated does not 
add very much to the principal facts already known. 
In future parts of my ‘ Etudes sur les Lycopodiacees ’ I 
hope to give information of greater theoretical value. One 
K 
