Philippe.—Flore des Pyrénées. Tom. ii. Bagnères de Bigorre, 1860. 4to.
Pokorny, A.—Vierter Bericht der Commission zur Erforschung der Torfmoose Oesterreiehs.—Verhandlgn. zool.-bot. Gesellsch. Wien., pp. 81–92. With 2 plates by Professor Lorenz, showing the excessive multiplication of adventitious roots from the axils and sheathing bases of leaves below the surface, by which the formation of the turf is essentially promoted.
Puel, T.—Etudes sur les Divisions Géographiques de la More Française. Part v.—Bull. Soc. Bot. de France, tom, vii., pp. 94–102.
Quetelet, Ad.—Observations des Phénomènes periodiques. Phénomènes periodiques Naturels. Règne végétale.—Mém. Acad. Sc. Belgique, xxxi.
The observations refer chiefly to the years 1856 and 1857, and were made at Brussels, Amiens, Ostend, Lierre, Namur, Dijon, and Venice, by Schramm, Bommer, and others.
The names of (1) about 112 species are given, arranged alphabetically, with the periods of foliation; (2) of 230–40 species, with the time of flowering; (3) of 69 species, with period of fruiting; and (4) of 53 species, with time of defoliation. There are also tables of observations made on the 21st March and 21st October, at the same stations, on the state of foliation, flowering, &c, of certain species. M. de Selys-Longchamps observes, in a note to the Observations for 1857, that the extraordinary temperature of 1857 retarded the fall of leaves. He states, if the number of trees which retained all their foliage be added to those which retained three-fourths (40 and 15) the total but slightly exceeds that of 1855 (26 and 27), but a great difference is shown in the proportion of the two numbers; 1857 presenting 40 species retaining all their leaves, 1855 but 26.
Rauwenhoff, N, W. P.—De anatomische zamenstelling der Schors van Robinia pseudo-acacia, in hare opvolgende ontwikkelings-toestanden,—Nederl. Kruidk. Archief. vijfde Deel., pp. 1–28.
Regel, E.—Index Seminum Horti. Bot. Imp. Petropolitani.—Ann. des Nat. (Bot,). Ser. iv., tom, xii., pp. 373–80.
Astemon, Kgl., a new genus of Labiatæ, stated to be near Colebrookia, Sm., is founded on a plant raised from seed sent by Cuming from Bolivia.
Reichenbach, L., and H. G.—Icones Floræ Germanicæ et Helvetiæ.— Tom. xix., Dec, 16–19. Lipsiæ.
In continuation of the genus Hieracium.
Reissek, S.—Vegetations-Geschichte des Rohres an der Donau in Oesterreich und Ungarn.—Verhandlgn. zool.-bot. Gesellsch. Wien., Bd. ix., pp. 55–74.
The author remarks the extraordinary tenacity with which the Reed (Phragmites communis) maintains itself abundantly on the Danube, notwithstanding the apparently unfavourable circumstances of flood, shifting river-bed, &c.
