SYNOPSIS OF GENERA. XV 



BRACHYPODIUM. Spikelets alternate, remote, cylindrical- compressed. 

 CaL 2-valved, many-flowered; valves opposite, transverse, unequal. Cor. 

 2-valved, the valves lanceolate ; ext. one generally awned at the extremity ; 

 int. retuse. p. 316. 



LOLIUM. CaL of 1 principal valve, opposite to the stalk, fixed, many- 

 flowered, p. 316. 



ROTTBOLLIA. CaL of 2 parallel, sometimes combined valves, opposite 

 to the stalk, imperfectly 2-flowered. p. 317. 



Order III. TRIGYNIA. Pistils 3. 



MONTIA. CaL of 2 leaves. Cor. monopetalous. Caps, with 3 valves 

 and 3 seeds. Portulacece, p. 59. 



Class IV. TETRANDRIA. Stamens 4, equal. 



Order I. MONOGYNIA. Pistil 1. 

 * Fl. monopetalous, superior, single-seeded. 



DIPSACUS. Common CaL of many leaves. Proper CaL single, superior, 

 of 1 leaf, cup- shaped, crowning the seed. Dipsacece, p. 141. 



KNAUTIA. Involucre many-leaved. CaL double ; ext. minute ; int. 

 cup-shaped. Fruit upon a short stalk, compressed, with 4 pores on depressed 

 points. Dipsacece, p. 142. 



SCABIOSA. Com. CaL of many leaves. Prop. CaL double, superior, 

 crowning the seed. Dipsacece, p. 141 . 



* * Fl. monopetalous, superior, 2-seeded. 

 RUBIA. Cor. bell-shaped. Fruit pulpy. Stella tee, p. 132. 

 GALIUM. Cor. flat. Fruit dry. Stellate, p. 129. 

 ASPERULA. Cor. tubular. Fruit without a crown. Stellate, p. 132. 

 SHERARDIA. Cor. tubular. Fruit crowned with the calyx, each seed with 

 3 teeth. Stellate, p. 132. 



* * * FL monopetalous, inferior. 



EXACUM. Cor. salver- shaped, spreading. Stam. shorter than the limb. 

 Caps, with 2 valves, separating at the top, many-seeded. Gentianeee, p. 185. 



PLANTAGO. Cor. reflexed. Stam. very long. Caps, bursting all round, 

 of 2 or 4 cells. Plantagineee, p. 175. 



CENT UN CULT] s. Cor. tubular, spreading. Stam. within the tube. Caps. 

 bursting all round, of 1 cell. Primulaceee, p. 192. 



Some Gentianece. 

 * * # * p e tals 4. 



CORNUS. Nect. 0. Drupe inferior. Nut of 2 cells. Caprifoliacea, 

 p. 135. 



(See Euonymus in Cl. V. Cardamine and Coronopus, in Cl. xv.) 



* * * * * 



Petals wanting. 



PARIETARIA. CaL 4-cleft, inferior. Stam. elastic. Seed invested with 

 the elongated calyx. Some flowers without stamens, their calyx remaining 

 unaltered. Uticea, p. 232, 



