64 Scientific Intelligence. 
Contribution No. 2, although communicated to the American 
Academy of Art s and Sciences as early as May 13, is published 
only in Neiretatic: It fills the pages of the Proceedings of that 
Academy, vol. viii, from p. 517 to p.618. It comprises: 1. A revis- 
ton of the extratropical species of the genus Lupinus—a difficult 
type. As it would be simply impossible to clear up this genus 
without reference to the original types of the species published by 
Agardh 2 Lindley, it should be stated that the revision, in this 
regard, is based upon a collocation by Dr. Gray, at Kew, of his 
own specimens with those of Lindley’s (the basis of Agardh’s 
synopsis), and of Hooker’s herbarium. Although this is not the 
same as having all these materials in the hands of the final mono- 
grapher, yet there is good reason to expect that the sees species 
are generally well identified. Several new ones are added, an 
the whole is put in such order that we may hope the genus will 
no longer be the most oS one of its size in North erican 
phenogamous botany. 2. A revision of the So species 
of Potentilla, acleging Sibbaldia. Horkelia and ILvesia. 
the sections and species, serving as a key; then the fuller descrip- 
tions, with little or no synonymy; then, in small type, 
table of cross-references of synonyms to the species. It is pleas- 
ant to see such neat raat mtn work. 
Contribution ae o. 8, on Polygonum, section Avicularia, after 
some prefato tial disposes of fourteen North American 
species of this Biri ae group, we hope satisfactorily ; only one 
of them, P. Zorrey/, from California, absolutely new; and a new 
section Duravia, is made for Meisner’s P. Californiceum, which is 
separated from the Avicularia section “ by every character but 
habit.” This short pe was published by the American Natu- 
ralist, in the November ber. 
a Characters of Mol Ferns from Mexico; by Danret C. 
Ton.—Being two new Polypodia and an Aspleniu um, from a 
collection made at Chiapas, a southern province of Me exico, by 
Ghiesbreght, which Prof. Eaton has is Scent distributed, extracted 
from Proceedings of the American Ac see for May 13, 1873. 
The eighth volume of these Proceedings, under the same date, 
November 18, 1873. This contains, 1. Characters of ew Genera 
