A RG, geo aa aaa 
Botany and Zoology. 403 
gation. Dr. Wittrock observed a rotation of the chlorophyll- 
he 9 are sometimes formed in three different ways, sup- 
posed to be cbtadweteniatle of the three different genera, seas 
asap" Vicctasaenne and Staurospermum 
. Non-Sexual Outgrowths on Fern Prothalli.—The dadkvens 
of ee non-sexual production of the Fern-plant from the pro- 
thallus, by Dr. Farlow, when a pupil of De Bary at Strasburg, 
as been extended to numerous instances. The facts and bearings 
of the case were reported to the Society of German N aturalists, 
at the late meeting at Munich, by Professor De Bary, as follows : 
“Investigation has shown that’ som e Ferns, mi Pteris Cre- 
ticu, Aspidium faleatum, and Aspidin m Flix as, var. vris- 
tatum , form on the prothalli normal antheridia but apni no 
bryo, the: ica described by Farlow. In those ee which 
develop archegonia no such outgrowth has been obsery e 
thallus, there is formed an axial punctum pi bo ap on which a 
second and the successive later leaves appeat. At the base of 
the first leaf there is formed, endogenou 7a So the vascular bundle, 
the first root. As soon as ei second lea Recing i the bud grows 
i ring in reat from 
the normal mode of growth are not uncommon. nique tly the 
prothalli form branches similar to themselves ( secondary — 
oo can Pion sige leaves and shoots in a great variety o 
place 
Pte pagation, oa pe benod batten suckers, etc. The numerous bulb- 
ets of the higher phanerogams, species of AZium, Dentaria and 
= like, are fe a s of this, as well as of the successive degrees 
of differenc pi ca a 3 Closer observation of the = piers 
