PHANEEOGAMIA. 467 



de rOrdre des Balanophorees. (Ext. Arch. Mus. t. x.) Paris, 

 p. 39. With 4 plates. 



Embracing a detailed consideration of (1.) The geographical 

 distribution of the Ci/nomorimn ; (2.) Its nurse-plants, mode of 

 vegetation, duration; (3.) Organography and anatomy of the 

 rhizome and its appendages, the organs of attachment; (4.) 

 Scape, scales, inflorescence and the reproductive organs, with the 

 result of experiments on its germination. In respect to the 

 latter a remarkable circumstance was the ascending du'ection 

 always taken by the radicle, a direction which it resumed, if in- 

 verted, with a sharp curve. M. Weddell partially succeeded in 

 observing the first stage of its parasitism, upon which further 

 observations are required. The seed is described as being pro- 

 vided with a testa, consisting of from five to ten layers of cells 

 containing resinous matter. This is opposed to the view of Dr. 

 Hooker who regards the covering of the seed as the adherent 

 inner layer of the ovary. 



Weddell, H. A. — Chloris Andina. Essai d'une Elore de la Eegion 

 Alpine des Cordilleres de I'Amerique du Sud. Vol. ii. p. 185 to 

 end of Vol. 



Including Umbelliferae, Araliaceae, Saxifragaceae, Cactaceae, 

 Eibesiaceae, Passifloraceae, Loasaceae, Onagrariaceae, Halora- 

 geae, Melastomaceae, Eosaceae, Leguminosae, Polygaleae, Hy- 

 pericineae, Malvaceae, Geraniaceae, Hypseocliarideae, OxaHdeae, 

 Berberideae, Eanimculaceae, Frankeniaceae, and additions to 

 vol. ii. The section Oreosciadium of Apium (DC. Prodromus, 

 iv. 101) is raised to generic rank. The species of tliis genus 

 are confined to the Andes where some of them reach the level 

 of perpetual snow. No other new genera are described. The 

 species of Malvastrum with involucrate flowers and free axillary 

 or radical peduncles are restored to the genus Malva : the true 

 Malvastra being limited to acaulescent plants having the pe- 

 duncles more or less adnate to the petiole subtending them, 

 and the carpels dehiscent as in Sida. They are confined to 

 the alpine region of the Andes. M. Weddell proposes Syp- 

 seocharis of Eemy as the type of a new natural order. Tlie fruit 

 of this plant is unkno\vn. Oxalis tuherosa is very largely culti- 

 vated in some of the upper valleys of Peru and Bolivia, where it 

 replaces to a certain extent the potato. 



Wegener, E.— Zur Flora von Pommern. Verb. Bot. Brand. Hft. ii. 

 p. 102. 



Weiss, A. und J. Wiesner.— Beitrage zur kenntniss der chemi- 

 schen und Physikalischen Natur des Milchsaftes der Pflanzen. 

 Bot. Z. 1861, p. 41. 



Observations upon the microscopical character, chemical 

 analysis, density and physical relations of the milk-sap of Mu- 

 pJiorbia Cyparissias, L. 



