( 800 ) 



P. saxifraga and Daucus Carota, for which hitter phxnt Hemerixck 

 had already found them befoi'e. 



In the long list of 66 European Umbelliferae in the Bliitenbiologische 

 Floristik of Lokw no more than 16 species occur that are only 

 known as bisexual plants whereas 40 are andi-onionoecious. It lias 

 appeared since that with three of the plants mentioned as bisexual 

 also male flowers are found. Of Anethum graveolenn, Aethusa 

 Cynapium and HeracUum Sphondijlluin namely, Waknstorp found 

 andromonoecious forms in the environs of Neu-Ruppiu ; also in this 

 country they occur in this form. Of the 66 Umbelliferae that were 

 studied, the following remain of which until now no other than 

 bisexual plants are known: 



Laserpitium pruthenicum, Peucedanuin venetum, CritJimum marlti- 

 mum, Silaus pratensis, Seseli Hippomaratlirum, S. annuum, Anthriscus 

 vulgaris, Bupleurum longifolium, falcatum, tennissimum and Pleuro- 

 spermum austviacum, to which list I think must be added : Eryn- 

 gium mnntimum, Berula angustifolia, Conmm maculatum and 

 Helosciaclium nodijlorum. 



It is probable that of some of these plants andro-monoecious forms 

 will be found when they are examined over a larger part of their 

 region of occurrence, especially since it has appeared that the diilerent 

 forms in which umbelliferae can occur, are often spread o\'er very 

 different and widely distant parts, so that, even though the species 

 mentioned be only known as hermaphrodite plants in a part of 

 Europe, the possibility must be granted that they occur in other 

 forms elsewhere. 



Of Slum Intifolium e. g., no other Init tiie andro-monoecious form 

 is found in a great part of Middle Europe and until now only in 

 the environs of Halle a/S accompanied by the male form, evidently 

 only in a few specimens. Only in our country the bisexual form 

 is known. 



Of Plmpiai'lla mngiiu the bisexual plant is only found in southern 

 Tyrol and Italy; the andro-monoecious on the other hand in the 

 whole of Middle Europe, while in southern Tyrol and Italy the 

 same plant also occurs with female and with female and asexual 

 flowers. 



()f ('>L'v.anth.(' pstidosn the andro-monoecious plant is found every- 

 where, the male one until now only in the environs of Halle. 



Of Aethusa Cynapium the hermaphrodite plant is known in the 

 whole of Middle Europe, the andro-monoecious one only in the 

 neighbourhood of Neu-Ruppin and of my residence. 



Of Daucus Ctii'otd the andro-monoecious form is ii,enerall\' Ibuiid, 



