ii6 



FERN GROWING 



but not as much so as in undulatum. This variety has been 

 christened Agneta. 



The present example is the fourth undeniable instance 

 of split prothalli, having the plants of each division exactly 

 alike ; therefore it may be assumed that the impregnation of 

 more than one female cell must by assimilation have spread 

 over the whole prothallus, i.e., the effect of the impregnation 

 of the several cells must have affected the whole of the impreg- 

 nated cells of the prothallus, or all the plants could not have 

 been alike. It may be mentioned that in more than a hundred 

 seedlings raised in this experiment, no other was like Agneta. 



EXPERIMENT NO. XXVI. 





Fig. 51. — Centaur. Half size. 



In 1 89 1 Asplenium T-rickomanes 

 var. Troggyense was sown with a 

 capitate form (Troggyense is incised, 

 and has imbricated pinnae), the object 

 being to produce an imbricated capi- 

 tate variety. Most of the seedlings 

 are more or less branched at the 

 apex, but scarcely imbricate : one of 

 the seedlings, however, had the apex 

 slightly imbricate, and the somewhat 

 large ramose head is joined in a con- 

 fluent mass. This has received the 

 name of Centaur (Fig. 51). 



EXPERIMENT NO. XXVII. 



In 1 89 1 a mixture of the spores of Scolopendrium vulgare 

 vars. marginatum, digitatum-crispum, muricatum, omnilacerum, 

 and Mr. Moly's crested projectum were sown together, and 

 amongst other seedlings are — 



