Geology and Natural History. 599 
Trrantum, which group is — completed. This new part contains 
sag Lit to Lxvizi inclus 
9. System of Mucins by James D. Dana.—The 5th “Sub-- 
edition ” of this work was issued by Wiley & Son, in —- 1874, 
a of 
tions, also has the Appendix, by Prof. peak, bend up with the 
main v olume, 
A Revision of the North American Chenopodiacee ; by 
Sekt Watson. Extracted from Proceedings of the American 
ward, especially in the ary interior portion of the continent, where 
as form a as conspicuous and characteristic a feature of the flora 
ma f our s 
+ Ohagereesvane Mr. brome has lately undertaken this, with 
Pitactonticns and eietaekinen! monograph, upon the e model 
as those upon Lupinus, Gnothera, &e. The species an are — 
defined, carefully arranged, and very considerabl in 
number. It here — that we have 17 genera er. a two 
(Sarcobatus and Grayia, the Grease-woods of the interior desert- 
Asia and Am a, and (as in the enslogous xe oi of limited 
and closely allied species. Our peculiar genera are Sarcobatus (here 
inco feet without question, or reference to Moquin’s exclusion 
of it), Aphanisma, Cyeloloma, and Grayia (with structure new 
and fees denise), each of single species ; all mr the first wit 
annular embryo. Of Salsolew, with conical-spiral embryo, — 
vee: genera and species. Our an is in Sy boca in- 
Am. Jour. eoetnaduacs* Sznies, Vou. VII, No. 42,—Junz, 1874. 
1 
