H. WORMALD 193 



between the extremes in each case a series of intervening forms — a 

 series which is so near being perfect, that it is perhaps impossible to 

 formulate a scheme of classification that will include and yet distinguish 

 all the forms. At present it seems best to define the characters that 

 may be taken as extreme types in each series and to employ these as 

 standards in comparing the various forms that already exist or new 

 forms that may arise as hybrids or as mutations. It is proposed 

 therefore to select as type characters the two extremes in each of the 

 four series, where (as shown in this paper) variation is considerable 

 when applied to a large number of plants (such as were available at 

 Wye) but confined within comparatively narrow limits when applied 

 to the individual. 



I. Time of Flowering^. 



(a) Early — about July 1st, and may be during last week in June or first week in July. 

 e.g. No. 294 [=295] June 30tli-Ju]y 4th. Average July 2nd. 



F 3 June 28th-July 5th. Average July 2nd. 



(b) Late — about August 1st, and may be during last week in July or first week in 



August. 

 e.fj. E ]6[ = 44; 48] July 23rd-Aug. 6th. Average July 28th. 

 131 Aug. 2nd-Aug. 9th. Average Aug. 5th. 



For use in i)ollination it will also be necessary to select intermediate 

 types that will be in flower when the niidseason $ hops are in burr. 



e.g. C3 July 9th-12th. Average July 10th; early midseason. 



H22 [ = 26] July 16th-25th. Average July 20th; late midseason. 



II. Colour of Bine. 



(a) Green, e.g. E 16 [=44; 48] 

 (6) Red, e.g. H22[=26]. 



III. Lemjth of Laterals. 



(a) Long and tn.i-. reaching a length of 4 or 5 feet. 



e.g. E 16 [=44; 48] and G 27 [=319; 320]. 

 (6) Sliort and dense, maximum length 2 feet 6 inches, but usually shorter than that. 



e.g. J 36 ; 67 ; H 10. 



IV. Glands on the Leaves. 



(a) Nwmcroiis — average over 60 for J m. circle taken as described on p. 183 ; 

 minimum greater than 40. 

 e.g. H 22 [ = 26] with an average of 73. 



168 [ = 167; 169] with an average of 82. 

 (6) Few — average under 30; maximum less than 40. 

 e.g. 67 with an average of 23. 



296 [ = 297] with an average of 28. 



' Vide p. 178 for definition of "Time of Flowering" as used in this paper. 



