1 



134 



Specimens have lately been received from Anona, Fla., and 

 College Station, Tex. 

 Penicillium a?id Corrosive Stihliuiate. J. M. Coulter, (l^ot. Gaz. 



xv, 69, 70). 



The fact is here noted that k rank growth of Penicillium 

 glaiicuin was found growing upon a mass of flour paste strongly 



w 



impregnated with corrosive sublimate. 



PeronosporecE for 1889 in New Jersey. — Some Notes Upon Econo- 

 mic. Byron D. Halsted. (Journ, Mycol. v. 201-203). 



■ 



Notes are given upon Peronospora Cttbensis, PJiytopJithora in- 

 festans, P. viticola, P, Violee, and Cystopus IponKrcB-panduratcE. 

 Platanus. — The Paheo)itologic History of the Genus. L. F. Ward. 



(Reprinted from Proc. U. S. Nat. Mus. xi. plates XVII-XXII, 



1888). 



The close relationship existing between the many fossil species 



of plants which have been named from time to time under the 

 jrencra Platanus, Aralia^ Araliopsis^ Sassafras, etc., is here 

 pointed out, and the significance of the peculiar basal appendages 

 to the leaves is emphasized. In the older representatives of the 

 genus Platanus these were very pronounced, and their aborted 

 remains are yet to be seen, especially in connection with leaves 

 upon young shoots and trees of Platanus occidentalis. The 

 plates are admirably designed to illustrate the argument of the 

 text, and contain representations of Aralia notata, Lx., A. digi- 

 tata, Ward, Aspidopliyllum trilobatum, Lx., A, dentatuni, Lx., 

 Platanus basilobata, Ward, P, appcndiculata, Lx., P. occidentalis, 



r 



L., Sassafras officinale, Nees and ^. Cretaceum., Newb. 



Pinus Jeffreyi. W. Coleman and J. B. Webster. (Garden, 



xxxvil. 280). 



An account of its introduction and growth in Great Britain, 

 and hints for its proper cultivation, 

 Prestcea Carderi. (Bot Mag. Tab. 7108). 

 Pipei^acecE Costariccnccs Novcb. (Comp. Rend. Seance, Soc. Roy. 



Bot. Bclg., Annee 1890, 69-71). 



Piper Pittieri, P. pulchrum, C. DC, var. Costaricense^ Pepero- 

 mia Tonduzii^ P. chrysocarpa, P, harbana and P. pahnana are 

 described as new by M. C. DeCandolle. 

 Pyrcnomycetes, — Contributions to the History of the Development 



