Rudolph Beer 221 



B. Genetics of Fuchsia. 



In this section a number of lines of investigation were commenced 

 and a brief account of these, so far as they have at present gone, is 

 given here. 



(1) "Faux Iiyhiides" in Fuchsias. 



Certain hybrids were described in 1894 by Millardet(13 and 18 a) 

 between various species of the genus Vitis in which the maternal 

 characters were represented to the total exclusion of all those derived 

 from the male parent. To these hybrids Millardet gave the name of 

 " Faux hybrides." The genus Vitis falls into two sections — Euvitis and 

 Muscadinia — and it was found that it was only when species belonging 

 to different sections of the genus were crossed that " faux hybrides " 

 appeared. Thus when varieties of Vitis vinifera (belonging to the section 

 Euvitis) were pollinated by Vitis rotundifolia Scuppei^nong (belonging 

 to the section Muscadinia) offspring were obtained which in all respects 

 resembled the female parent, Vitis vinifera. If these seedlings were in 

 their turn again crossed with Vitis rotundifolia Scupper riong there was 

 still no appearance of any of the rotundifolia characters in the following 

 generations, but all the seedlings entirely resembled Vitis vinifera. 



Gard(6) found in 1903 that the resemblance between the offspring 

 of these pollinations and their maternal parent extended even to the 

 anatomical features. Millardet also observed that the pollination of 

 varieties of Vitis vinifera with the pollen of Ampelopsis hederacea also 

 yielded " faux hybrides " in which no single character of Ampelojms 

 occurred. 



Another interesting case of the existence of hybrids in which the 

 characters of one parent are alone represented is presented by the genus 

 Fragaria. In this instance it is usually the male parent which pre- 

 dominates although the reverse is said also to occur in other crosses 

 within the genus (Millardet 13 a). 



Solms-Laubach (14) for example found that when Fragaria vir- 

 giniana was pollinated with pollen from F. elatior the offspring exactly 

 resembled the male parent {F. elatior) in all their characters. " Faux 

 hybrides " of apparently a similar nature, but in which the maternal 

 characters predominate, have been observed in the genus Ruhus by both 

 Millardet and Lidforss(13a, 9 and 10). 



Among the species and varieties of Fuchsia several cases have been 

 recorded in which the female parent apparently predominates over the 

 male. Lowe (11) mentions that Fuchsia fidgens crossed by the variety 



Journ. of Gen. xi ^^ 



