PHANEROQAMIA. 443 



ixber die Eoizbarkcit dor Geschlechts-organe. Bot. Z. 1861. pp. 

 25, 33. With 1 plate. 



Eelating to observations upon the irritable organs of Ber- 

 heris and Mahonia, Cynareae, Rata grcweolens, Pnrnassia and the 

 stigma of 3Iimulus. The minute structure of the filaments of Ber- 

 ber is and Mahonia is described and compared in young and mature 

 stamens. The structure of the stamens also and the nature of their 

 irritability in the Cynareae is explained. Herr Kabsch states the 

 stigma to be fully developed subsequent to the shedding of the 

 pollen by its surroimding anther-tube, consequently fertilization 

 must require insect or foreign agency. 



Kabsch, W. — Anatomische und Physiologische Untersuchungen 

 iiber einige Bewegungserscheinungen im Pflanzenreiche. Bot. 

 Zeit. 1861. pp. 345, 353, 362, 369. With 2 plates. 



With detailed account of the structure of the irritable organs 

 in Stylidium, Heliantliemum, Sedysaruni gyrans, and other species; 

 the influence of an electric current upon their movements, &c. 

 In the common Rock-rose the author considers the minute hairs 

 which surround the base of the stamens to be the irritable organs, 

 the stamens themselves being passive. 



Ueber contractile und irritabile Gewebe der Pflanzen. 



Schles. Ges. Bot. Bericht. 1860, p. 4. 



With observations on the contraction, through irritation, of 

 the stamens of Centaur eae. 



Kaesten, Hermann. — Der unterstandige Eruchtknoten. Bot. Zeit. 

 1861. p. 153. With 1 plate. 



Considered with special reference to Pomaceae and Cactaceae. 



Ueber die Wirkung plotzlicher, bedeutender Temperatur- 



veriinderungen auf die Pflanzenwelt. Bot. Zeit. 1861. 289. 



The author's observations are based upon the stems of tree- 

 ferns {Balantium and Cyathea) which he had forwarded from 

 Venezuela to Berlin, and which had been exposed to a very low 

 temperature during the transit from Hamburg. Some placed in 

 a warm house never recovered, others {Balantium) immersed in 

 cold water were saved, though their temperature was so low that 

 they were coated thickly with ice after some hours immersion. 

 None of the Cyatliean lived. 



De la Vie sexuelle des Plantes et de la Parthenogencse. Ann, 



Sc. Nat. iv. Ser. xiii. p. 252. 



Preceded by a historical introduction recounting from the 

 earliest observations upon the sexuality of plants to the recent 

 experiments of Braun and Eadlkofer. The author claims priority 

 of the discovery of the mode of fructification in Vauclieria, and 

 criticises M. Pringsheim's remarks upon it. A detailed account 

 of the structure of Coenogonium and of the pollen and formation of 

 the embryo in Coelehogyne is given. In this plant the author 

 states that in the Botaaic Gardens of Berlin he finds a fifth part 

 N. H. R.— 1862. 2 H 



