Mar., 1914.] B.HAYA1A.— ON PSEUDIXUS, GEXUS OF LOBANTHACEJE. 33 



with all other Loranthaceous plants, with anthers porous on 

 the face and adnate on the back to the perianth-lobes." In 

 this plant, they are totally different ; stamens are arranged 

 alternately to the lobes of the perianth, and anthers are two- 

 celled, perfectly uniting with one another at the center of the 

 flower, but quite free from the perianth-lobes, and bursting 

 when mature in the connate suture or opening with a single 

 central pore. The female flowers and the fruit are nearly the 

 same as in Viscum. Yet, the difference, as is mentioned above, 

 in the male flowers, is so great that it is impossible to regard 

 this plant as congeneric with Viscum. In the first place, the 

 difference in the relative position of the stamens to the perianth- 

 lobes is generally considered an important basis and one almost 

 universally depended on systematizing flowering plants. It should 

 certainly, by itself, be recognized as constituting a more than 

 generic difference. Secondly, whether the anthers are free from 

 one another or are united is undoubtedly a point of sufficient 

 importance to be regarded as essential and generic. In the 

 third place, the relation of the stamens to the lobes of the 

 perianth, whether adnate or separate, is one of the most reliable 

 characters for deciding generic rank. Finall} 7 , whether the 

 anther is two-celled or many-celled must also be taken as a 

 very important character, if not essential, at least accessory. 

 All the differences, when taken together, make it indisputable 

 that the false mistletoe is a plant representing a new genus, 

 Pseudixus, as I propose to call it, distinct from Viscum. 



The relation of Pseudixus to the other genera it is at present 

 difficult to state satisfactory. In respect of the male flowers, 

 the new genus stands without a parallel. No flowers with 

 stamens alternate to the lobes of the perianth has ever been 

 recorded in the Loranthacea^. 2) Yet, the connection of this 

 type and others may be seen in a male flower of Eremolepis 

 and that of Viscum.^ The former has a simple trimerous 



1) Engler, A., Loranthacea?, in Englick, A. u. Prantl, K., Naturlich. Pflanzen- 

 fam. II.-l, p. 193, and Bentham, G. et Hookek, J. D., Genera Plantarum Til. p. 213. 



2) Bentham et Hooker, 1. c. and Engler, 1. c. 



3) Eichlkr, A. W., Bliitendiagramme II. p. 553. 



