6 ERYTHEA. 
fect.’ “We divide this book,” he says, “ into two parts. 
The first will be concerned with stem-bearing herbs of this 
kind, the second with those wanting a stem and having 
hypophyllous seeds. These, moreover, are deservedly 
placed next to the preceding [fungi, alge, sterile mosses, 
etc.], which are imperfect and destitute of seed, because 
these plants themselves were considered sterile and seedless 
not so long ago—before their seeds came into view by the 
assistance of the microscope.” In the introduction to Part I., 
“concerning stem-bearing plants,” he remarks: “Some species 
of Lichens do not produce caulicles, but their seeds arise in 
the leaves themselves, now in a lower, now in an upper part, 
which, nevertheless, we have thought ought not to be separ- 
ated from the rest on this account, inasmuch as they agree in 
all the other known characters.” 
OBSERVATIONS ON THE COMPOSIT#.— VILL. 
By Epwarp L. GREENE. 
The discussion of “Aplopappus,” now for some months 
interrupted, may be conveniently resumed after the record- 
ing of some observations upon certain types that were never 
referred to that genus. 
In maritime subtropical North America, and to be more 
definite, on opposite shores of the Gulf of Mexico, grow two 
species of shrubby or suffrutescent plants, both of which 
have been referred by many botanists to Solidago. The one 
inhabiting the northerly and continental shore is Solidago 
pauciflosculosa, Michx. That of the opposite and insular 
stations is S. Domingensis, Spreng. The two are so much 
alike in general appearance that almost.!any botanist, even @ 
specialist in the field of the Composite, if he were to trust 
his eyesight unaided by a lens, would quite possibly pro- 
