HORTUS GRAMINEUS WOBURNENSIS. 285 



nessed this practice ; and the slender foxtail, instead of disap- 

 pearing in these instances, re-appeared with the scanty herbage, 

 and in greater health and abundance. The soil must first be got 

 into good heart by very moderate and judicious cropping, which 

 includes the proper application of manure, a skilful rotation of 

 crops, and the most pointed attention to the destruction of weeds ; 

 which last can only be effected, in this sense, by adopting the drill 

 or row culture for the crops. After this, the land may be returned 

 to grass for several years with every prospect of success. 



It flowers in the first week of July, and successively till 

 October. 



AVENJl puhescens. Downy Oat-grass. 



Specific character : Panicle spreading equally on every side ; 

 calyx 3-flowered, shorter than the florets; leaves flat, downy. 

 Fig. 1. Calyx. 2. Florets. 3. Floret. 



Obs. — Root fibrous, inclining to stoloniferous ; culms nume- 

 rous, erect, roundish, striated, smooth, from six inches to a 

 foot, and two feet high, according to the nature of the soil 

 and shelter ; leaves flat and rough on the margin, the other 

 parts soft, with downy hairs ; florets purplish and silvery 

 white ; corolla bearded at the base, larger valve with an awn 

 fixed at the middle, at first straight, afterwards jointed and 

 bent back, longer than the valve. E. Bot. 1640 ; Flo. 

 Ger. 382 ; Host. 2, t. 40 ; Flo. Dan. t. 1203 ; Wither. Arr. 



German, Kurzhaariger-Haper. 



Native of Britain. Perennial. 



Expei-iments. — At the time of flowering, the produce from a 

 sandy loam is — 



Produce per Acre, 

 dr. qr. lbs. 



Grass, 23 oz. The produce per acre - 15654 6 



80 dr. of grass weigh, when dry - 30 7 rQr.r. ^ ^ 

 The produce of the space, ditto - 138 3 

 Theweightlostby the produce of one acre in drying 9783 15 12 

 64 dr. of grass afford of nutritive matter 1 2 | o^^ 14 ^ 

 The produce of the space, ditto - 8 2^ 3 



At the time the seed is ripe, the produce is — 

 Grass, 10 oz. The produce per acre - 6806 4 



80 dr. of grass weigh, when dry - 16 ) nfii 4 o 

 The produce of the space, ditto - 32 5 



