190 Atkinson . — A Monograph of the 
When the germ-tube is to produce the confervoid prostrate 
form, the point of origin from the spore becomes less rich in 
coloring matter, more hyaline and finally granular, partaking 
more of the nature of the confervoid element. When it is 
two or several spore-diameters long, it is separated from the 
spore by a transverse septum. The confervoid elements are 
slender compared with the elements of the Chantransia-ioxm 
in some species, as Lernanea australis , while in some species, 
L. annnlata for example, they are more nearly the same 
diameter. The cells are usually very long, unless the germ- 
tube meets with considerable resistance by the compactness 
of the surrounding elements. The second germ-tube, when 
it develops, is easily distinguished, even in the incipient stages, 
from the germ-tube forming the prostrate form. The arch of 
the spore-wall at the point of origin is perceptibly broader. 
The endochromic contents are richer at this point than in the 
other parts of the spore. When the germ-tube is a spore- 
diameter, or little more, in length, it assumes the characteristic 
form and coloring of an actively growing cell of the 
Chantransia-ioxm. The endochromic contents are flocculent 
and highly colored. It is also separated from the spore by a 
septum. For several cells from the origin of an axis, the cells 
in Lemanea australis n. sp. increase in diameter, as shown in 
Fig. 21. Figs. 19, 20, 2 1, 22, represent different stages in 
the germination of the spores of Lemanea australis . These 
were drawn from living specimens. In Fig. 19 the spore is 
producing a confervoid element. Fig. 20 represents a little 
farther development of another one. Here a germ- tube 
forming a primary axis of the Chantransia-ioxm has arisen 
directly from the spore. In Fig. 21 the primary axis of the 
Chantransia-ioxm developed before the rhizoic element. 
In making collections of the Lemanea during late autumn 
and through the winter, it is a very usual thing to find sexual 
shoots, especially of the more rigid cartilaginous species, of 
the previous year, very little disintegrated ; the spores within 
in all stages of germination ; the elements of the Chantransia- 
ioxm growing through the walls in great profusion, and 
