184 Descendenz. — Morphologie. 



annular ring. In one case only, in Anagallis arvensls, the top 

 of the young ovary was somewhat crenated. The development 

 therefore suggets a uni-carpellary structure for the ovary of 

 the Primulaceae and conflicts with the teratological evidence. 



Apart from numerical variations, no striking monstrosities 

 were observed in Prlmula veris. Branched filaments, each 

 branch bearing an anther, were frequently found. Among the 

 flowers of P. vulgaris coilected in 1899, variations, other than 

 numerical, were common. The principal abnormalities noted 

 were: — lobed petals (6 cases); one petal inserted in front of 

 another (2 cases, in one of which 1 stamen was carried of to the 

 internal petal); an 8-merous short-styled flower with 2 addi- 

 tional stamens inserted on the receptacle; a 5-merous flower 

 with 2 additional stamens inserted lower down on the corolla- 

 tube; the stigma of the last flower was lobed and anthers 

 were sessile on the style; branched staminal filaments (20 

 cases). H. H. W. Pearson. 



HäRSHBERGER, John W., Cockscomb Fasciation of Pine- 



apples. (Proceedings of the Academy for Natural Sciences 



in Philadelphia, p. 609—611. D. 1901.) 



Describes a fasciation oi apparently about a dozen pineapples 

 (Ananassa sativa) to form an irregulär fan-shaped mass. A transverse 

 section showed twenty axes, but the author is unable to determine 

 whether each represents a fruit. The flesh was fibrous but the flavor 

 good. Such fasciations do not appear to be rare in cultivation. 



Lloyd (New York). 



Leclerc DU Sablon, Sur le tubercule du Tamus communis. 

 (Revue generale de Botanique. T. XIV. p. 145.) 



L'auteur, apres avoir etudie la structure et la croissance 

 du premier tubercule ne de la germination de Tamus communis, 

 constate que les caracteres que presente ce tubercule „n'indi- 

 quent pas nettement la nature morphologique de cet organe". 

 I! ne semble pas avoir eu connaissance de l'excellent travail 

 consacre par M. Queva ä l'etude de la meme question 

 (Rech, sur l'Anat. de l'app. veget. des Taccace'es e t d e s 

 Dioscorees. p. 220. Lille 1894). Lignier (Caen). 



Lignier, 0., Sur la valeur morphologique des pieces 

 florales chez le Dicentra spectabilis DC. (Bulletin de la 

 SociCte" Linneenne de Normandie. Serie V. Vol. V. Caen 

 1901.) 



Les quatre pe'tales du D. spectabilis comprennent chacun 

 deux moitie's superposees se'parees par un elranglement; la 

 moitie inferieure a la structure d'un petiole aplati tandis que la 

 rnoitie superieure a celle d'un limbe. Les sepales ne corre- 

 spondent qu'au petiole. Les e"tamines presentent des parties 

 correspondant au petiole et au limbe des petales. L'ovaire 



