21'2 i\ (hmkiii;m:i; imi.iiwiiuwi.i, m: (;r;\hrini i;. 



|iii|Mil,ir a Icw \iMr- iii;o, me iiiiw ciilircly sii]iiTsi'(lr(l. wliilc llic olil-lasliionod 

 loi'ins willi pliiiri cri'cl slaiidards arc (|iiile olisdlclc. 



Il is inlercsling to noie liow (|iiickly practical liireilcis liavc lakcii aih all- 

 iage ol' Mendeliaii resoarcli and liave Unis beeii ahic to laisc wavcd furiiis of 

 llie old '■ grandillora " types in a very shorl lime. One difficully liowever 

 seenis lo liave been eneounlered. and Ihal is thaï certain dark lilue siiades of 

 colour, of Ihe " Lord Nelson '" ly]»- do not seeni lo lalie on llie liiic wavcd forni 

 as olher colours do. 



The queslion of llie desirabilily of raising \arieties willi double standards 

 is still a mool one witli Sweel Pea lanciers. Il woulil appear liowever tliat 

 soine diflieulty niay l)e ex|)erienccd in raising such forms Irue lo lype, for 

 I notice thaï mosi (d' the flowers vvilli double standards bave an exposed 

 liisLil, liiesc are more likely lo be cross-fertilised by insects, and in any case 

 iiiay recpiirc lo be ferlilised by hand to sel many seeds. Furlher observation 

 shows Ihal Ihe more wavy Ihe llower, the more the pistil is exposed, and liiis 

 may possibly accounl for the exlraordinary number of rogues lliat iiow 

 occur in the mosl carefiilly selecled strains of the best modem varieties. 'l'his 

 summer 1 liad Ihe pleasure of visiling the National Sweel Pea Sociely's triais 

 al Sulton (ireen. and ont of a total of 'J60 stocks sent by the leading growers, 

 no less than 9!) conlained " rogues "'. In our Mendelian Experimenls with the 

 old erect and hooded forms, we found only a few "rogues " caused probably 

 by Ihe Itee Meyachile. 



Il would appear however tliat in the modem waved forms llie " rogues 

 are far more numerous, and il is possible thaï in the future the question will 

 hâve lo be faced, as to the necessily of covering the flowers to secure true 

 stocks, and furlher of hand-ferlilising the flowers to secure a good crop. 



An interesting form of Sweel Pea bas been observed al the station tliis 

 summer. in which the Standards of Ihe llowers are divided into Ihree distinct 

 lobes, an apical lobe with hvo basai side-lobes. not unlike a Shamrock leaf. 

 Sleps are being laken to breed froni Ihis form w hich bas appearcd m ail the 

 tlowers of one plant. Oui of 117 varieties of Sweel Peas tested al the station 

 Ihis year, tiO bave been selecled for furlher work, and ôtiô individual plants 

 bave been grown separalely and Iheir seed saved imlividually in order to 

 secure. if possible, homo/ygous lines. 



Ovchids. — The imjxirlant and complicated question of raising liybrid 

 albinos true from seed, bas been much simplilied by llie application of the 

 (ienelic principle thaï colour may be due tu the simullaneous présence of two 

 complementary faclors. 



In the lighl of récent rcsults, we are iiow able lo classify many individual 

 albinos, with some confidence, as pure C, pure R.. and impure C. albinos. 

 In order to obtain liybrid albinos truc, ail we hâve lo do is to mate the pure C. 

 albinos wilh other pure C. albinos, and the pure R. albinos with olher pure R. 

 albinos. On the olher hand if the C. albinos be maled wilh the R. albinos. 

 (■ob)ure(l forms will undoubledly resuit, and our object will nol, be attaiueil. 

 AH Ihisgoes lo show the importance of adopling some simple method of iilenli- 

 licalion for individual albinos Ihal are used for stud purposes. (For détails see 

 Journ. Roij.llofl. Soc. Lotid., X.WVI, Part 1, pp. il-iS (lillO). also (ianleners 

 Chrouirlr, \\m). i. p. SI, |!)P2. ii, p. Ô7i.) 



