SCIENTIFIC COMMITTEE. 



cxix 



of the variety of Robinia Pseudacacia called monophylla, obtained 

 in a garden in Italy. It is characterized by the very large terminal 

 leaflet and pair of small ones below it. All the flowers he had examined 

 had two or three carpels, but seed was being produced. 



Progeny of Green Wallflower. — Mr. F. J. Chittenden, F.L.S., referred 

 to the Wallflower cross, the Fi generation of which was shown to the 

 Committee last season (Journal R.H.S., xxxviii. p. xxxix). The original 

 cross was between a 11 green-flowered " form and the normal form, 

 and in the first generation all the flowers produced in many plants 

 were normal. The self- fertilized seedlings from these plants had in 

 some cases flowered this season, but in insufficient numbers to give 

 any reliable statistics. The results, so far, showed, however, that 

 segregation was occurring, several of the plants producing the " green " 

 abortive flowers, and others the normal flowers. The plants are being 

 grown on. 



Scientific Committee, July 29, 1913. 



Mr. E. A. Bowles, M.A., F.L.S., F.E.S., in the Chair, and thirteen 

 members present, with Mr. A. D. Cotton, F.L.S., a visitor. 



Plum-boring Moth. — Mr. E. M. Holmes, F.L.S., showed examples 

 of the work of the larvae of this moth, and commented upon the 

 damage done and the dirlerences he had observed (particularly in 

 the amount of spotting) in the larvae in life and as described. 



Hybrid Pelargoniums. — Mr. A. Langley Smith showed a number 

 of variations obtained from self-fertilizing the plant obtained as a 

 result of crossing P. crispum with an old hybrid fancy called ' The 

 Shah,' and by recrossing the forms among themselves. 'The Shah' 

 is a fancy Pelargonium sent out many years ago by Messrs. Turner, 

 of Slough ; its origin is unknown, as Messrs. Turner tell us (in litt.). 

 A summary of the results is given below. 



Group A : Original Hybrid (Pelargonium crispum X P. X ' The 

 Shah'), self-pollinated. 

 ,, B : Original Hybrid x Fancies. 

 C : Fancies x Original Hybrid. 

 D : Group C seedlings — self-pollinated. 

 E : Group B seedlings x Group C seedlings. 

 ,, F : Group C seedlings x Group B seedlings. 



G : Group C seedlings x Fancies. 

 ,, H : Fancies x Group C seedlings. 

 The terms tall, intermediate, and dwarf have the following signifi- 

 cance : — 



Tail : Tall upright habit, few branches. 

 Intermediate : Semi-drooping bushy habit, fairly tall. 

 Dwarf : Dwarf bushy habit, stiff stems. 



