470 Scientific Intelligence. 
and Taxinew, which have no fruit-scale, we must come to the same 
arial ision, assuming a virtual suppression of the scale. e 
alge difficulty seems to arise from the position of the ovules 
n the — side of the see carpel, which is not seen in any 
angiospermous plants; however, the anther-cells, which morpho- 
logically correspond to the fic are in Conifere also borne on 
the lower side of the stamen- scale ; and for further analogy we 
have to look to the Cy cadec, and, be | it boldly announced, to the 
Ferns. Lycop odincer, on the other hand, bearing the spore-cases 
on the upper side of the leaf, cannot be regarded as the progeni- 
tors of Coniferze, as nei been ‘thought. The relationship of Coni- 
fere is with Cycadew and Ferns, while Gnetacew become still 
bies Canadensis, either into a distinct or a more or fon connate 
pair of leaves ; but a i! at the base, not, as in other ap it at 
the oer of = co 
9. Speci Don enera, et Ordines Algarum. Volumen Tertium: 
De "Florideis Cure Posteriores. Auctore J. G. Acarpu. Lund. 
1876.—In the present volume, the author reviews the species 
described in the first, second, and a portion of the third 7 of 
volume second of his classic work on alge, giving frequent emen- 
dations, and interpolating the species described since the publica- 
tion of that volume. The whole forms a volume of 700 pages, 
and, with the exception of the Rhodomelee and Vorallinee, pur- 
rts to be a complete monograph of the orders of Flortdee. in 
the execution of the v olume, the author has followed the same 
lan as in the preceding, and the text shows a careful — 
ing comparatively free from wiccteprcal errors. Twent 
species and two sap are either new to the United States or, for 
the first time, fully described. Centrocerus Uregonense Ag., seems 
to be Rouieccons pein Farlow, published in the Proce. 
Am. A -, March 9, 1875. In _th e ca pte oe of the species 
been supposed to be identical with European species, as, for 
instance, Sarcophyllis Selena’) edulis, taken_ to be oe same 
as S. edulis of Europe, and @ 
to be G. Gi — Tt i isa well. known fact that species: oan Palge 
