668 



FARM ' SEEDS ' : SPECIAL 



flowering glume more transparent and three nerved, occasionally 

 with a slender bent arrn. 



The larger of the empty glumes of the spikelet is toothed only 

 at its upper part. 



In damp situations Fiorin is said to be of use, but it is very 

 doubtful if it possesses any agricultural value at all, 'and is best 

 avoided. 



The Germination Capacity should not be less than 55 to 

 60 per cent. 



Yellow or Golden Oat-Grass (Trisetuni flavescens Beauv. = 

 Avena flaijescens L. 



Form, .Size, and Colour. — The flowering glume is divided 



at its tip, the halves being pro- 

 '■"^ longed into two short awns. A 

 twisted and bent awn arises at a 

 point not quite half way down 

 the back of the glume, the base of the latter being 

 fringed with a few short hairs ; the rachilla bears 

 many long white hairs upon it. The length of the 

 seed is about 4^5 mm., of a pale-brownish straw 

 colour. 



PupaTv. — The seed is almost entirely hand- 

 collected and is usually very imjjure. It is difficult 

 to clean, and samples are adulterated with the 

 ~ Ozx- useless "W'avy Hair-grass {Aira f/exuosa L.) which 

 resembles it (Fig. 214). The impurity is readily 

 detected by its darker colour and the position of the awn 

 very which arises near the base of the flowering glume ; the 

 rachilla lies closer to the pale than in Golden Oat-Grass, is 

 much shorter, and the hairs upon it not so long : the hairs at 

 the base of the seed are, however, more prominent in the 

 Wavy Hair-grass. 



The Germination Capacttv is always low as there is a 

 difficulty in clearing away the empt)- chafif; in the be^t samples 



