98 BIBLIOGRAPHY. 



same inflorescence, the inferior sepal, and one of the lateral pair, had 

 undergone no alteration ; the other lateral sepal was affected as in 

 the other flower, being united throughout with the semi-labellum. 

 The two lateral petals remained normal and free. "Within the com- 

 pound lobe, resulting from the union of the lateral sepal and label- 

 rum was an entire, free, slightly trilobate, second labellum, traversed 

 by a thick longitudinal stripe. The right side of this labellum was 

 nearly flat, and with an undulate margin ; a portion of the left side 

 was sharply curved inwards, becoming parallel to the rest of the seg- 

 ment, and between it and the column. Within these was a third 

 and yet smaller, spreading, supplementary labellum, with its back 

 turned to the plane face of the column, and bearing slight traces of 

 a thickened median line. The median line of the large labellum was 

 sensibly turned towards the left, that of the small inner one, toward 

 the right. The three labels were placed nearly in front of each 

 other ; the intermediate free one probably representing the normal 

 labellum. 



L'eau de la pluie qui mouille et lave les organes exterieurs 



des plantes, est-elle absorbee directement ? Eecherches experimen- 

 tales sur cette question. — Bull. Soc. Bot. de France, torn, vii., pp. 

 86-92. 



The detail of eight observations is given upon four species {Fuch- 

 sia glohosa, Veronica Lindley ana, China Aster, and Phlox decussata). 

 From M. Duchartre's experiments it results, that plants exposed to 

 rain for various intervals up to 12 hours, having the pots containing 

 their roots perfectly closed, acquired no increase in weight ; on the 

 contrary, in some cases, a slight decrease was manifest, due to loss 

 by transpiration. 



Diifour, Leon. — De la valeur historique et sentimentale d'un herbier 

 2eme partie. Souvenirs 'd'Espagne. — Bull. Soc. Bot. de France, 

 torn, vii., pp. 103-9. 



Engelmann, George. — Systematic arrangement of the species of the 

 genus Cuseuta, with critical remarks on old species, and descriptions 

 of new ones. St. Louis, 1859. (Ext. Trans. Acad. Sciences, St. Louis, 

 1859, vol. i, pp. 453-523). 



Two new Dioecious grasses of the United States. — Trans. 



Acad. Science, St. Louis. 1859, pp. 431-442, with 3 plates. 



These grasses are regarded as types of new and distinct genera, 

 both of which, probably, belong to Chlorideae — Buchlbe dactyloides, 

 Engelm. (the Buffalo-grass of the Western Prairies), and Monan- 

 thochloe liUoraUs, Engelm. (from Texas and Florida). 



Fenzl, Ed. — Delectus Seminum in Hort. Bot. Univ. Yindobonensis col- 

 lectorum anno 1858. — .inn. Sc. Nat. (Bot.). Ser. iv., torn, xii., 

 pp. 165-6. 



Frauenfeld, Georg. — Ueber exotische Pflanzenauswiichse erzeugt von 

 Insecten. — Verhandlgn. ZooL-Bot. Gesellsch. Wien. Bd. ix., pp. 

 319-32, with 2 plates. 



