Descendenz und Hybriden. — Morphologie und Teratologie. 151 



The capsules were collected from all these crops and the 

 Means , the Standard Deviations, and the Homotyposis were 

 calculated from each locality — tables oi the results are given 

 in the paper. 



It is shewn that in plants there are 33 possible forms oi 

 fraternal relationship corresponding to whole or hali-brother- 

 hood in man, and that thus the ränge oi experiment must 

 be very wide in order to determine the relative iniluence oi 

 the various modes oi crossing. A nomenclature ior these iorms 

 oi relationship is suggested. 



The iniluence oi environment on crop-constants was investi- 

 gated and tables are given ior this. 



The mean value oi the homotyposis ior the eight localities 

 was iound to be very nearly 5. 



Tables are given ior the parental inheritance and the slope 

 oi the regression line, and it is shewn that the parental inheri- 

 tance is considerably iniluenced by the conditions oi the indi- 

 vidual crops. 



A iew cases oi grand-parental inheritance are dealt with, 

 and the parental correlation ior the inheritance oi the number 

 oi stigmatic bands is given ior iour localities; and the iraternal 

 resemblance ior this and various other characters in the case 

 oi the Oxiord crop. 



The conclusions reached in the paper are — that environ- 

 ment largely iniluences the Variability and the Mean, but not 

 the Heredity — the Heredity being, however, iniluenced by 

 diiierentiation in the local environment. Further that ior a 

 variety oi characters the results are in iair agreement with the 

 values obtained in the case oi Man and other animals, ii we 

 assume periect cross-iertilisation to have taken place. 



Pearson. 



VlGUlER, Rene, Sur la structure des cotyledons et 1 a 

 disposition de certaines racines ad vent i ves da ns 

 les plant ules des Labiees. (C.-R. Acad. d. Sc. Paris. 

 16 nov. 1903. p. 804.) 



Dans la germination des Labiees, les tissus libero-Iigneux de la 

 racine principale penetrent par moitie jusque dans les Cotyledons, mais 

 sans y prendre nullement ia disposition radiale; ils y conservent au 

 contraire la position alterne. 



La jeune tige principale est, au debut, sans relation vasculaire avec 

 les faisceaux de Taxe hypocotyle; on peut donc dire qu'il n'y a pas 

 passage de la racine ä la tige. 



II se developpe sur s'axe hypocotyle des racines adventives qui se 

 placent dans le plan perpendiculaire ä celui des cotyledons, et s'inserent 

 en face la biturcation que subissent les cordons liberiens au moment de 

 s'ecarter pour penetrer dans les cotyledons. Lignier (Caen). 



Wagner, R., Beiträge zur Kenntniss d er Anemone ranun- 

 culoldes L. und der A. Lipsiensis Beck. (Ann. des k. k. 

 naturhist. Hoimuseums Wien. XVII. 1 902. p. 281—300. 5 Textiig.) 



