PHANEROGAHIA. 
597 
Koch, Gr. F.—Beitrage zur Flora der Pfalz. Pollichia, xviii-xix. 38. 
Landerer, Dr.—Ueber die Gartenkultur in Grieclienland. Flora, 
1862, p. 11. 
Sachs, J.—Zu Nageli’s Abbandlung “ IJeber die Wirkung des Frostes 
auf die Pflanzenzellen.” Flora, 1862, 17. 
-Zusammenstellung der in Grieclienland sicli findenden 
Fruehtbaume. Bonpl. 1862, p. 149. Die in Grieclienland nnd 
im Oriente angebauten Getreidesorten, p. 176. 
Lange, M. T.—Tillaeg til Denmarks Flora. Yid. Medd. Kjob, 
1861, p. 1. 
-Pugillus plantarum imprimis hispanicarum qnas in itinere, 
1851-52, legit J. Lange. Ibid. p. 33. 
Lawes, J. B. and J. H. Gilbert. —Growth of Wheat by different 
Manures, several years in succession on the same land. Journal 
Agric. Soc. xlix. p. 31. 
Lebel, E.—Sur le JPrimula variabilis. Bull. Soc. Bot. ix. p. 438. 
Lecoq, H.—De la Fecondation naturelle et artificielle des vegetaux 
et de 1’Hybridation consideree dans ses Rapports avec l’Horti- 
culture, &c. Yol. 2. Paris, 1862. The chapters are headed, 
1. Natural Fertilisation. Yarious modes of fertilisation observed 
in Plants. 2. The Species and its varieties. 3. Artificial Fertili¬ 
sation : Hybridization and means of effecting it. In subsequent 
chapters the Natural Orders are treated seriatim with regard to 
species capable of being crossed or upon which desirable experi¬ 
ments should be tried. 
-De la fecondation indirecte dans les vegetaux. Bull. Soc. 
Bot. ix. p. 211, and C. Bend. liv. p. 1247. Fertilisation of a 
pistil by the pollen of its own flower, M. Lecoq terms ‘ feconda¬ 
tion directe by the pollen of another flower, ‘ fecondation indi- 
recte.’ The former he believes to be the exception and not the 
rule. The chief conditions under which hermaphrodites become 
incapable of self-fertilisation are enumerated, also a series of 
grades intermediate between truly hermaphrodite and unisexual 
flowers. No original experiments are given. 
-De 1’espece et de ses croisements dans le genre Mirabilis. 
Bull. Soc. Bot. ix. p. 217. In Mirabilis hybrids between species 
were found to be exactly intermediate. Hybrids, however, be¬ 
tween hybrids become, on the other hand, infinitely varied, some¬ 
times differing much from their types. Fertile seeds were 
afforded in small quantity by the hybrid plants. 
—-Botanique populaire. Paris, 1862. 8vo. pp. 408. 
Lehmann, E.—Beitrag zur Kenntniss der Flora Kurlands. Arch. 
Nat. Kurlands. i. p. 539. 
Lemaire, Ch. —Histoire et Revision du genre Pilocereus. Rev. 
Hort. 1862, p. 426. 
Letzerich, L.—IJeber die Befruchtung und Entwickelungsge- 
schichte des Embryon von Agrimonia Pupa tor ia. Bot. Zeit. 1862, 
p. 9. With figs. 
