147 
the disappearance of a vast host of the Forest-tent Caterpillar 
which devastated forests and orchards in Southern Illinois in 1883. 
Cryptogams.—Guide to the Principal Orders and commoner 
New, England Genera. F. LeRoy Sargent. (Cambridge 
University Press, 1886, pp. 39, pr. 75c¢.) 
This convenient little guide is intended for the Summer 
School at Harvard University, but will be found useful by all be- 
ginners in the study of the more lowly plants, especially Fungi 
and Lichens. 
Cylindrosporium.— Two New ie of. J. B. Ellis and W. A. 
Kellerman. (Journ. Mycol., ii., p. 81.) 
Floraof Franklin Co., Be cade O. M. Meyncke. (Bull. 
Brookville Soc. Nat. Hist., No. 2, pp. 45-49.) 
A continuation of the list of plants commenced in the first 
bulletin of this Society. Ninety-five species are here enumerated. _ 
The proofs have not been carefully examined, there being many _ 
inexcusable errors of spelling. 
Forest Rotation.— Causes. of. John T. Campbell. (Amer. Nati: 
XX., Pp. 521-527.) 
A reacties article on this interesting subject.. The writer 
concludes that in western central Indiana the seeds of no forest 
trees germinate unless they fall on the soil, those dropping on 
the accumulated leaves beneath the trees not being able to ger- 
“minate. Also that birds and other animals are the principal 
agents in the dissemination of tree seeds, the crow being a prime 
factor in this process. : 
Fouquiera gigantea, n. Sp. C. R. Orcutt. (West Amer. Scien- 
tist, ii, p. 48.) 
Gray Herbarium of Harvard University. (Bot. Gazette, xi., p. 
151.) 
A. brief description of the plan of arrangement, with a long 
account of the cases and their fastenings. 
Harfordia, Greene and Parry.—A New Genus of Eriogonee 
Srom Lower California. C. C. Parry. (Proc. Davenport 
Acad. Sci., v., pp. 26-28; reprinted.) 
The Sronsens new genus includes two species, 7. micmeoee 
(Pterostegia macroptera, Benth.) and H. fruticosa, Greene (P. 
Sruticosa, Greene, in Bull. Cal. Acad., iv., p. 212.) 
