on 
4 _cross them with most of the June flowering bearded Iris, and they are : ‘fi 
| | giving white Rowers 3 in the first ener Hone Le Bye promise good ante 
even exceptional results. But their earliness makes it difficult to 
| poor seeders, with infertile pollen. My only interesting white from 
albicans, at present, is Berenice (= albicans X trojans superba). 
{ 
Itis a pure white, with golden yellow reticulations on the hafts (in place 
_ of the brown of haga ae which seems to show that in these reticula- 
i 
_ tions there is yel a third kind of yellow pigment besides the variegata 
Band flavescens yellows. Ameena give whites (generally tinted pink or 
porcelaine) from crosses with some squalens, e. g. Judith X Thorbeck; 
Thorbeck x Jacquesiana; Queen of May X Thorbeck. These amæna — 
derived whites are however unsatisfactory and since the whites 
derived from plicata, which are now appearing, have much finer flowers 
and are freer flowering, all the amæna whites have been discarded. 1. 
do not yet fully understand the genetics of the plicaia derived 
whites flavescens X aurea or Mrs Neubronner give cream whites, 
| ag 
often exceedingly free flowering, but with small flovers. | 
From the collected results of many experimental crossings it has 
been possible to draw genera! conclusions, which are also of "practical 
use to breeders, regarding the origin and constilution of the types, — 
(once regarded as species), — neglecta, squalens and amena. | 
have given the reasons for these conclusions in the Gardener’s Chro- 
nicle. Feb. 14., 1920 and in The Journal of ihe Royal Horticultural 
Society, Vol XLV, parts 2and 3. Ameena varielies are simply colour 
_ varieties of variegata, white taking the place of the yellow, and purple 
or violel-blue taking the place of the red-brown of the falls of 
variegata. The relationship between neglecla and squalens is of the 
. same nature; neglecta being, practically, squalens in which there is no 
, yellow. Both neglecta and squalens come, — in about equal num- 
bers, — from crosses of pallida X variegala varielies. 
Furthermore, from a long series-of crosses it has been demons- 
trated that the plicata type is recessive to all other types, except per- 
haps some whiles. 
