PHANEBOaAMIA. 463 



SouRD-DussiPLES, E. C. — Note sur une finomalie presentee par una 

 fleur d' Orchis mascula. Bull. Soc. Bot. viii. 227. 



A pollen-mass had been projected upon the labellum. 

 SouBD-DussiPLES, C. E. ET G. Beegeron. — Note sur un cas de 

 metamorphose ascendante. Transformation des etamines en 

 feuilles earpellaires. Bull. Soc. Bot. viii. 3-18. 



Showing the development of the anomalous carpels to be, to 

 a considerable extent, at the expense of the filaments of the 

 transformed stamens, and not as, according to the authors, M. 

 von Mold maintains, of the connective and anther-cells. 

 SiOHMAJsns", F. — Versuche iiber die vegetation von Maispflanzen in 

 Wasserigen Losungen ihrer Nahrstoife. Flora. 1861. 679. Also 

 Gott. Nachr. 1861. 137. 



An account of experiments, yet in progress, instituted with 

 a view to ascertain how far the development of a plant was pos- 

 sible, removed from the soil ; and further, the influence upon 

 vegetation of the abstraction of any element of its food, and the 

 extent to which one element might be substituted for another. 

 The author's experiments thus far warrant the following general 

 conclusions : — 1. That, in the case of maize, normal vegetation is - 

 quite possible without contact with soil, provided its mineral 

 constituents be supplied to it in proper amount in a weak acid 

 solution, 1000 parts of which hold not more than 3 parts of the 

 solid. 2. The plant derives its organic matter from the carbonic 

 acid of the air, taken up by the leaves. 3. Nitrogen must be 

 supplied in the form of nitric acid and ammonia. The plant will 

 not succeed if, with the mineral constituents, either of these be 

 given alone. 4. Maize requires both lime and magnesia. The 

 one cannot supply the place of the other. 5. At first soda is not 

 essential, though without it vegetation soon slackens. 

 Stub, D. — Beitrage zur Monographie des Genus Draha in den Ear- 

 paten: Ungarus, Galiziens, Siebenbiirgens, und des Banates 

 nordlich der Donau. Wien, 1861. 8vo. 46 pp. 3 plates. (Ext. 

 Oest. Bot. Zeitsch. No. 5.) 

 Tassi, a. — Esame d'una singularita di struttura dell flore dell' Aqui- 

 legia vulgaris. I. Giardini, vii. 295. 



The carpels were transformed into small lobulate leaves, 

 bearing leaflets answering to the ovules. 

 Tatnall, Edw. — Catalogue of the Pha^nogamous and Eilicoid Plants 

 of Newcastle County, Delawai-e, U.S. arranged according to the 

 Natural System, with the Synonyms of Modern Authors, pp. 112. 

 Thienemantst, H. W. — Skizze der Flora Masurens. Flora, 1861. 

 689,725,756. 



Masurenis a tract of varied surface in S. E. Prussia, including 

 about 600 Phanerogamia, a catalogue of which is given. 

 Thavaites, G. H. K. — Enumeratio Plantarum Zeylanise. Pt, iv. 

 p. 241-320. 



New genera described are Podadenia, Bimorpliocalyx, Des- 



