196 Trans. Acad. Sci. of St. Louis. 



giebt an ein Stamen vveit liinger als die iibrigen gesehen zu 

 haben (ahnliche Liingendifferenz ist in andern Arten 

 normal)." I have examined Moquin-Tandon's* statement 

 and find that it is: " J'ai decouvert, pres de Toulouse, un in- 

 dividu de Solanum Dulcamara, dans lequel toutes les fleurs 

 superieurs offraient tantot deux, tantot trois etamines beau- 

 coup plus longues et plus grosses que les autres." In a foot- 

 note he then gives S. tridynamum (Poir) and S. Amazonium 

 (Bellend) as producing three elongated stamens and 8. ves- 

 pertilio (H. Kew) and /(!?. cornuimn (Juss.) as those in which 

 " uneetamine seulement acquiert une taille double du volume 

 habituel." 



The citing as an abnormality of the production of one 

 stamen longer than the others in S. cornutum Lam. is 

 evidently an error due to an oversight on the part of Dr. 

 Penzig. The '' S. cornutum (Juss.) " to which Moquin- 

 Tandon refers is apparently the 8. cornutum described by 

 Juss.,t which is 8. cornutum Lam. 8. cornutum Lam. is 

 clearly one of the species with produced stamens, according 

 to the description given by Dunal in his monograph, and 

 the original description of Lamarck. t 8. cornutwn (Hort. 

 Monsp.) according to Dunal § equals 8. rostratum Dun. Under 

 8. Dulcamara L. Penzig says: " Im Androeceum beobachtet 

 man bisweilen, dass zwei oder drei Stamina langer sind als die 

 iibrisren," but does not refer to the literature, so that the 

 observation may be one of his own. 



In one flower of several 

 taken from a plant of 8. ni- 

 grum near St. Louis, Mo., 

 one of the stamens was notice- 



' rr,^^^ ably longer than the others, 



Solanum tuberosum. — Todd. J & 



the increased length being 

 partly in the filament and partly in the anther. 



* Moquin-Tandon, A. Elements de Teratologie Vegetale. Paris. 1841, 

 p. 138. 



t Juss. in Ann. Mus. Hist. Nat. 3:120. t. 9, as cited by Pursli, Flora 

 Americae Septentrionalis. Second Ed., London, 1816, and Dunal in De 

 Candolie, Prodromus Regni Vegetabili. IS^. 1852. 



% Lamarck, Tableau Eucyclop^d. Methodique. Botanique. 2 : 25. 



§ Dunal. 1. c. 



