347 
Nicotiana tomentosa. J. D. Hooker. (Curt. Bot. Mag. t. 7252.) 
Notes on Silurian Fossil Plants from Hamilton, Ontario. C. C. 
Grant. (Journ. and Proc, Hamilton Assoc. 1891-92, 29-35.) 
The author takes up cudgels in defense of the vegetable origin 
of many organisms which have been classed as Jucerte Sedis, 
Buthotrephis, Paleophycus and Paleochorda are the subjects of 
interesting memoranda. 
Notes on the structure of the Fruit-stone of the Date, Phenix 
Dactylifera, L. J. L. Zabriskie. (Journ. N. Y. Micros. Soc. 
Vili. 107-112, plate 37.) 
Noticia y Descripcion de una Variedad de la Breweria Mexicana, 
Hemsley. M. M. Villada. (La Naturaleza (II.), ii. 127-128, 
one plate.) 
Pasithea cerulea. J.D. Hooker. (Curt. Bot. Mag. t. 7249.) 
Peperomia inguilina. WW. Botting Hemsley. (Gard. Chron. 
Xli. 428.) 
__ The description of a new Central American species. 
_ Plant Dissemination—A peculiar case of. Edward L. Berthoud. 
(Bot. Gaz. xvii. 321-326). 
Argument for the distribution of plants through the migra- 
_ tion of the Buffalo. : 
Plants and Insects—Some Interrelations of. C.V.Riley. (Proc. 
Biol. Soc. Washington, vii, 81.) 
Pollination of Flowers—A Lecture on the. L.H.Pammel. Des 
_ Moines, 1892. Illustrated.) 
Polygonum persicarioides, H. B. K. J. M. Holzinger. (Bot. 
Gaz. xxii. 295, 296.) oie 
Notes on the species and record of its occurrence in Texas. 
Prasiola—Ueber die Fortpflanzung von. G. de Lagerheim. 
(Ber. Deut. Bot. Gesell. x. 366, with plate.) 
Preliminary Comparison of the Hepatic Flora of Boreal and Sub- 
boreal Regions. Wucien M. Underwood. (Bot. Gaz. xvii. 
305-312. ; 
eons Plants as Fossils. Jos. F. James. (Jour. Cin. 
Soc. Nat. Hist. xv. 75-78. Also reprinted.) | 
After a very commonplace and incomplete pre ntenor of the 
‘Subject the author winds up with what he calls the ‘chemical 
