44 HORTUS GRAMINEUS WOBURNENSIS. 



of what is called the natural character, as well as the artificial, has 

 been found most useful ; as may perhaps appear by the following 

 general catalogue of grasses so arranged. 



Sect. I. -^ Grasses with 3 Stamina, 1 Style, Calyx multivalve, 



or an involucre. 



LYGEUM. Hooded mat-weed. Generic character -.flowers pro- 

 duced in pairs ; spathe convoluted, of one leaf; seed-vessel a 

 nut two-celled, two-seeded, villose. Richard, Mem. Soc. 

 d'Hist. Nat. de Paris, t. 3. 

 spartum,* perennial. Kush-leaved Spanish mat-weed. Linn. 

 Syst. Veg. ii. 250. Nat. of Spain and the eastern coast of 

 Africa, on clayey soils. Flowers in England in June, and 

 in its native country in March. 

 CORNUCOPIA. Horn of plenty grass. Hooded cornucopia. 

 Generic character : invohicre of one leaf, cup-shaped, many- 

 flowered, crenated ; calyx 2-valved, equal ; corolla 1-valved ; 

 seed-vessel, none, the corolla encloses the seed, which is flat on 

 one side, and convex on the other.f 

 cucullatum, annual; spike awnless, cup-shaped, crenate, Linn. 

 Syst. Veg. ii. 252. Nat. of Smyrna and the Isle of Patmos. 

 alopec\iroides. See Alopecurus utriculatus. 

 POMMEREUELLA.:]: Generic character: spikets sitting, 2- 

 rowed ; calyx 2-valved ; 3 — 6 flowered, flowers short ; corolla 

 2-valved, the inferior one with four teeth, segments bristled, 

 awn dorsal, flexuose from between the smaller segments ; 

 spikes simple, culms branching, seed smooth. Roxburgh. 

 Corom. t. 131. 

 cornucopia, per. Nat. East Indies. 

 monoica, Linn. Syst. Veg. ii. 252. Nat. East Indies. 

 CENCHRUS. Serpent-grass. Generic character : involucrnm 

 enclosing from 3 to 5 spikets, often double, exterior furnished 

 with stiff" bristles, interior, one leaf, multifid ; lacines lanceo- 



* In Spain it is made into ropes, baskets, Sec. 



f This has more frequently iwo styles than one; and, perhaps, should have been 

 classed under Triandria Digynia, but the disposition of the flowers seems to sepa- 

 rate it from the rest of the Grasses in that Order. 



X So named by the younger Linnajus, in honour of the very illustrious Lady du 

 Gaze de Pommereull, who laboured at the investigation of Grasses with indefatiga- 

 ble industry. M. M. Die. 



