i84 



Neue Literatur. 



Zelle. 



Arber, A., Studies on tlie binucleate phase in thc plant cell. (Journ. Roy. Micr. 



Soc. ig20. März, i — 21.) 

 Böhmig, L., Die Zelle. Sammlung Göschen. Nr. 818. 

 Harper, R. A„ The structure of protoplasm. (Amer. Journ. of Bot. /p/p. (», 



273—300.) 

 Sharp, Jj, W., Somatic chromosomes in Tradescantia. (Ebenda. ig2o. 7, 



341—352.) 

 Twiß, W. C, A study of plastids and mitochondria in Preissia and com. (Ebenda. 



iQig. 6, 217 — 234.) 

 Ziegenspeck, H., Das Amyloid jugendlicher Organe. Das Amyloid in den 



wachsenden Wurzelhaaren und seine Beziehungen zum Zelhvachstum. (Ber. d. 



d. bot. Ges. ig2o. 38, 328 — 333.) 



Gewebe. 



Arber, A., Studies on intrafascicular cambium in Monocotyledons (III and IV). 



(Ann. of Bot. igJQ. 33, 459 — 466.) 

 Bailey, J. W., s. unter Gymnospermen. 

 — , The cambium and its derivative tissues. II. Size variations of cambium Initials 



in gymnosperms and angiosperms. (Amer. Journ. of Bot. ig20. 7, 355 — 367.) 

 Buchholz, M., Über die Wasserleitungsbahnen in den interkalaren Wachstumszonen 



monokotyler Sprosse. (Flora. ig20. 14. N. F. 119 — 186.) 

 Holden, H. S., Observations on the anatomy of teiatological seedlings. III. On 



the anatomy of some atypical seedlings of Impatiens Roylei, Walp. (Ann. of 



Bot. ig20. 34, 321 — 344.) 

 Holmes, M. G., Observations on the anatomy of Ash-wood with reference to water 



conductivity. (Ebenda, igig- 33, 255 — 264.) 

 Rivett, M. F., The anatomy of Rhododendron ponticum, L., and of Hex aqui- 



foliuni, L., in reference to specific conductivity. (Ebenda. ig20. 34, 525 — 550.) 

 Worsdell, W. C, The origin and meaning of medullary (intraxylary) phloem in 



the stems of Dicotyledons. IL Compositae. (Ebenda. 421 — 458.) 



Morphologie. 



Arber, A., On the leave structure of certain Liliaceae, considered in relation to 

 the phyllode theory. (Ann. of Bot. ig20. 34, 447 — 466.) 



Boodle, L. A., The mode of origin and the vascular supply of the adventitious 

 leaves of Cyclamen. (Ebenda. 431 — -438.) 



Riede, W., Untersuchungen über Wasserpflanzen. (Flora. ig20. 14. N. F. i — 118.) 



Physiologie. 



Baas Becking, L. G. M., and Hampton, H. C, Measurement of the catalytic 



power of catalase. (Amer. Journ. of Bot. ig20. 7, 261 — 274.) 

 Blackman, V. H., The Compound interest law and plant growth. (Ann. of Bot. 



/p/p. 33, 353—360.) 

 — , Radio-activity and normal physiological function. (Ebenda. ig20. 34, 299 — 302.) 

 Bonnier, G., Nouvelles observations sur les cultures experimentales ä divers altitudes 



et cultures par semis. (Rev. gen. de Bot. ig20. 32, 305 — 326.) 

 Boresch, K., s. unter Cyanophyceen. 

 Bornemann, F., Die Kohlenstoffemährung der Kulturpflanzen. (Angewandte 



Botanik. ig20. 2, 284 — 290.) 

 Buchholz, M., s. unter Gewebe. 



