580 
BIBLIOGRAPHY, 
Boot, E.—-Illustrations of the genus Carex. Pt, iii. Tab. 311-411. 
London, 1862. The variable species are well illustrated. Eight 
plates are devoted to the varieties of Carex Jilicina , four to 
C. Jamesoni , five to C. Boryana , C. alpina and C. admta , six to 
C. strciminea, and C. vulpinoidea. 
Botissikgaijlt, M.—Sur la nature des Graz produits pendant la 
decomposition de l’acide carbonique par les feuilles exposees a la 
lumiere. A. Sc. Nat. iv. ser. xvi. p. 5 and C. Bend. liii. p. 862. 
Numerous analyses are given of the gases given off by plants 
under the influence of light, precautions having been taken to 
prevent the air dissolved in the water in which the experiments 
were conducted, or confined in the tissues of the plant, from 
vitiating the results. It was found that when exposed to the sun, 
an appreciable amount of the oxide of carbon (and also of the 
proto-carburet of hydrogen) was given off. M. Boussingault 
asks if the insalubrity of marshy countries may not be due to 
the emanation of this noxious gas. 
Bouteille, M.—Note sur l’Orobanche-du-lierre. Bull. Soc. Yol. ix. 
p. 340. The seeds are supposed to require “une incubation ” of 
three years before germination. Yaucher, however, showed that 
Orobanche might vegetate two or three years without throwing 
up a flowering stem. 
Bra riv, A.—TIeber abnorme Blattbildung von Irina glabra im 
vergleich mit analogen Yorkommnissen bei anderen Pflanzen. 
Konigsb. Yerh. Nat. (Bot.) Ext. pp. 5, with 1 plate. 
Irina glabra is a Sapindaceous tree of the Eastern Archipe¬ 
lago ; a variety of which, with the leaflets pinnatifidly incised, has 
been distinguished by Miquel as var. dissecta. Prof. Braun’s ob¬ 
servations apply to specimens of this variety preserved in Horns - 
chuch’s herbarium, in which one side of the leaf-lamina is entire 
and but slightly serrate above and penni-veined, while the other 
is cut up into pinnatifid lobes, and in part reduced almost to the 
principal vascular branches, which present a tendril-like appear¬ 
ance. This abnormal leaf is compared with other forms (abnormal 
and normal) occurring in various species. A long description is 
given of the accession of a compound character in the leaves of 
GleditscJiia triacanthos. 
-Appendix plantarum novarum et minus cognitarum quae 
in horto regio botanico Berolinensi coluntur. Mart. 1862, pp. 14. 
Including a minute description of Festuca Briichnanni, supposed to 
be a hybrid between F. gigantea and Folium perenne ; a re-distri¬ 
bution of the species of the genera Asarum and Ilelleborus ; and 
statistics of an examination of numerous flowers of Caelebogyne 
ilicifolia. In the female flowers of the latter no polleniferous 
stamens or staminodia were to be found, as was also the case in 
ten flowers examined about the same time, in the Leipsic garden by 
Mettenius. {Vide, also, A. Sc. Nat. ser. 4. xvi. p. 77.) 
