pe 
CRYPTOGAMIA. 369 
will conceive the difficulty of observing the very minute 
pistil of this plant, buried as it is in the substance of the 
plant, its summit only, opening on its surface. As the 
capsule swells, it becomes more apparent, and by a per- 
pendicular section through the substance of the leaf, we 
discover the style of a beautiful brown colour, ascending 
from the capsule to its surface, The seeds are at first 
white, afterwards greenish, but nearly transparent, and 
surrounded with a very transparent white border. The 
capsules, when ripe, open on the surface of the plant, 
forming a black spot, visible to the naked eye. They are 
generally observable towards the base of the leaf. 
f. 76. The plant of its natural size. 
.f.77. Part of the same magnified, to shew the more 
iperficial spots containing the stamens, and the deeper 
seated female flowers (aa). ; 
__f. 78. A follicle of anthers separated, and highly mag- 
nified. 
f.79. A dicular section through the substance 
perpen 
of the plant, iD aew the ripening capsules, and their styles 
rising up to the surface of the leaf. 
wT 60. A Capsule taken out, together with its style. 
AL’/G. 
The plants comprized under this division scarcely ad- 
mit of a distinction of root, stem, and leaf; much less are 
we enabled to describe the parts of the flowers. The 
Genera, therefore, are distinguished by the situation of 
what we suppose to be the flowers or seeds, or by the re- 
semblance of the whole plant to some other substance we 
are well acquainted with. PI, 1. E. and F. represent Li- 
chens, and C. a Fucus. : : 
tifications are either to be found in 
The female ! : 
saucers Perce es, as in Lichens 5 in hollow bladders, as 
in Fucus, or dispersed through the substance of the plant, 
as in Ulva. 2 é oe 
“The substance of these plants varies much ; it is flesh- 
like, or leather-like ; membranaceous, oF fibrous ; jelly- 
like, or horn-like ; or resembli calcareous earth. / 
Some of them possess irritability, or an appearance of. 
Sensation. as 
Vou. I, wee 
= 
