464 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



In the above list we have thirteen plants, each bearing a pair 

 of pods, each pollinated on the same day, and each pollinated by 

 one species or hybrid, the result being that every pair but one 

 ripened on the same day ; while in the exceptional pair there is 

 a difference of thirteen days between the ripening of each pod, 

 notwithstanding that the "pollen was taken from the same 

 plant, same scape, and probably the same flower " (in litt., 

 August 14, 1897). 



Each Pair Pollinated with two different Species or Hybrids. 



Seed Parent 



Pollen Parent 



Pollinated 



Pod Ripened 



Difference 



c. 



x calophyllum . 



C.Chamberlainianum 

 C. Spicerianum . . 



Dec. 8, 1894 

 Dec. 8, 1894 



Oct. 31, 1895 

 Oct. 31, 1895 



0 



c. 



x Leeanum . . 



C. x cenanthum . . 

 C. Boxalli .... 



Jan. 1, 1895 

 Jan. 1, 1895 



Nov. 25, 1895 

 Dec. 7, 1895 



12 days 



c. 



x nitens . . . 



C. x Canhamii . . 

 C. x cenanthum . . 



Dec. 14, 1895 

 Dec. 14, 1895 



Sept. 7, 1896 

 Nov. 9, 1896 



63 days 



c. 



x Williamsianum 



C. x Calypso . . . 

 C. Boxalli .... 



Jan. 15, 1896 

 Jan. 15, 1896 



Sept. 26, 1896 

 Sept. 26, 1896 



0 



c. 



bellatulum . . 



C. Curtisii .... 

 C. ciliolare .... 



May 26, 1896 

 May 26, 1896 



Mar. 17, 1897 

 Feb. 23, 1897 



22 days 



c. 



niveum . . . 



C. x Bittelii . . . 

 C. barbatum . . . 



May 26, 1896 

 May 2(3, 1896 



April 9, 1897 

 Mar. 9, 1897 



31 days 



In the above list we have six plants, bearing each a pair of 



pods, each pair pollinated on the same day, but each pair with 



two different species of pollen. The results are very interesting. 



Four out of the six ripened differently in each pair, the period 



varying from twelve to sixty-three days ; in the other two each 



pair ripened together. The most curious and puzzling result of 



all was a plant of C. Lawrenceanum which carried three pods : 



two crossed with C. Sanderianum and one with C. niveum, all on 



the same day. There was a difference of fifteen days in the two 



pods crossed with C. Sanderianum, though the pollen was taken 



from the "same plant, same scape, and same flower" ; while, 



strangely enough, the pod crossed with C. niveum ripened on 



the same day as one of those crossed with C. Sanderianum.* 



* C. Sanderianum was also the pollen parent in the one exception on 

 p. 463.— Ed. 



