The Vegetable Individual in its relation to Species. 67 
I will only adduce a few of them here. Most Labiati ore, 
Synantheree, Grasses, Polyzalee, Primulacee, the Dictamnus, 
fris, Galanthus nivalis, etc., have a bimembral alternation of 
generation in different ways, according to the partition of the 
formations. In Paris, for example, the first generation takes 
the lowest grade: it presents a subterranean inferior-leaf shoot, 
(rhizoma) which never leaves the darkness of the earth, only 
reaching the world of light, towards which all plants strive, in 
iS posterity, viz., in the quadrifcliate and unifioral lateral shoots 
which it sends up. The first generation of Viola odorata and 
related species forms foliage proper; still, the main axis tarries 
close to the earth, and the second generations (the lateral flowers) 
scarcely rise above the foliage. In Lysimachia nummularia, 
the main-shoot, a rooting leaf-stem, creeps along the surface of 
the ground, growing indefinitely, and terminating only in the 
(essential ) lateral branches by its golden-yellow flowers. The 
main shoot rises perpendicularly, forms foliage proper, and passes 
on to superior-leaf formation in many species of Veronica, e. g., 
V. acinifolia, producing its flowers as a second generation out of 
the axiis of the leaves. The same holds good in regard to Oro- 
banche ramosa, which fixes itself and preys upon the root of hemp, 
though its main-shoot has no green leaves. A very remarkable bi- 
Membral alternation of generation is shown by Adoza, now so fa- 
Mons, its name to the contrary notwithstanding.* The main-shoot 
creeps along the ground, oscillating with the seasons between leaf- 
a inferior-leaf formation, —at every return of the latter stretching 
out like a runner and boring into the earth. owers and fruit, 
frustrated by the invariable retrogression of the main-shoot, are 
Produced by the aspiring perpendienlar branches, after a pair of 
‘Small leaves on the sca , and several insigitificant superior-leaves, 
Shoots of the third degree. Hepatica presents a similar division of 
the formations among the two generations of shoots; but the 
maln-shoot, rejuvenated from year to year aud alternating be- 
{Ween inferior-leaf and leaf-formation, is short and upright. The 
braiches With their single flowers, forming the sega aa 10n 
arise in the axils of the scale-like inferior leaves. 4 mem brat suc 
c€ssion of shoots occurs in Convallaria, Polggonatum, the genus 
Ale, all Species of Plantago, Veronica officinalis, Chamedrys, 
ete, Viola sylvatica, Lysimachia thyrsifolia, Alyssnm saxatile 
and some other Cruciferae, Hcheveria coccinea, all the species 
of Melilotns Medicago, Galega, in Pisum, and many other 
esiminons plants, and in Succisa pratensis, Anacyclus, Pyre- 
22. - ER EROS e from da (fame). The rela- 
“8: Adora moschatellina, which derives its name from 56% 
1e4g,0, growth in this plant have been correctly described by Wydler: Bot Zeit, 
