KEY TO THE HIGHER ALGZ OF THE ATLANTIC COAST. 479 
upon the action of Dionæa and Drosera—a capital subject for Mr. 
Darwin’s handling. 
Apropos to these papers, which furnish excellent illustrations of 
it, let us recognize Darwin’s great service to natural science in 
bringing back to it Teleology: so that, instead of Morphology 
versus ‘Teleology, we shall have Morphology wedded to Teleology. 
To many, no doubt, Evolutionary Teleology comes in such a ques- 
tionable shape as to seem shorn of all its goodness; but they will 
think better of it in time, when their ideas become adjusted, and 
they see what an impetus the new doctrines have given to investi- 
gation. They are much mistaken who suppose that Darwinism is 
only of speculative importance and perhaps transient interest. In 
its working applications it has proved to be a new power, eminently 
practical and fruitful. 
And here, again, we are bound to note a striking contrast to Mr. 
Brown, greatly as we revere his memory. He did far less work 
than was justly to be expected from him. Mr. Darwin not only 
points out the road, but labors upon it indefatigably and unceas- 
ingly. A most commendable noblesse oblige assures us that he will 
80 on while strength (would we could add health) remains. The 
vast amount of such work he has already accomplished might 
Overtax the powers of the strongest. That it could have been done 
at all under constant infirm health is most wonderful. 
A KEY TO THE HIGHER ALGE OF THE ATLANTIC 
COAST, BETWEEN NEWFOUNDLAND 
AND FLORIDA. 
BY PROF. D. S. JORDAN. 
PART II. RHODOSPERMES. 
(RED ALGÆ). 
Plants rosy red or purple, rarely brown-red or greenish red, 
becoming, when exposed to sunlight, dull green or yellowish. 
Fructification of two kinds; diccious:—1. Spores contained 
either in external or immersed conceptacles, or densely aggregated 
. * lea and dispersed in masses throughout the substance of the 
a2. Tetraspores, red or purple, either external or immersed 
