42 PITTONIA. 
there in years long past, and which are now extinct. 
historic interest of the catalogue is therefore of the highest 
order in every way. 
As regards nomenclature the work is, with some exceptions, 
well in accordance with the latest standards. But we could 
have wished to see the name SOLEA CONCOLOR, Gingins, rather 
than Ionidiwm concolor, Benth. & Hook. With us who are 
as familiar with Jonidium of Western America as with Solea 
of the Atlantic side of the continent, the two genera are not 
to be confounded. Professor Gray has somewhere given ex- 
pression to the same opinion, and has signified that Solea is 
to be retained in the Synoptical Flora. Doubtless also in the 
matter of that shrub early known as Spiræa opulifolia, Linn., 
the editor should have passed by the synonym, Neillia 
opulifolia, Benth. & Hook. and have written PHYSOCARPUS 
OPULIFOLIUS, Maximowiez For Nesca verticillata, HBK., 
an older name, and that by one of our classical American 
authors, DECODON VERTICILLATUS, Elliott, is judged to be the 
right one, in the recent scholarly monograph of Lythracee, 
by Dr. Kæhne. Typographical errors in the volume are few, 
and the treatise does credit not only to the author but to the 
institution under whose auspices it is given to tlie public. 
` Contributions to American Botany. By Asa Gray. 
Proc. Am. Acad. xxii., pp. 270-314. 
For fifteen years and more we have been wont to look for- 
ward annually, with eagerness, to the coming of the year's 
number of these Contributions by Professor Gray. In pre- 
paring the present series the celebrated author has gone back 
to the polypetalous orders which he had, since some years 
ago, given over to the handling of his learned associate, Mr. 
Sereno Watson. The first natural order dealt with is that of 
the Papaverace:e, in the discussion of which, the most inter- 
esting new fact is that which comes in at the end of the whole 
contribution, as an addendum, namely, a true poppy indige- 
nous to the Santa Inez Mountains in the Southern part of 
