those bearing only Pistilla, are in separate spikes, though on the 

 same plant. — In others, on distinct plants, and in others again, 

 in the same spike. What in the flowering state Linnaeus calls 

 the nectarium, in its maturestate performs the office of a seed- 

 vessel, and is then called a capsula. It has an open mouth, 

 through which the stigmata issue from the top of the germen ; 

 this mouth sometimes closes, sometimes remains open ; in some 

 species it is entire, in others it has 2 pointed teeth at the end. 



SAGITTARIA. 



Flowers with Stamina, numerous. 

 Calyx. Perianthium 3 leaves, leafits, egg-shaped, concave, 



permanent. 

 Corolla. Petals 3, circular, obtuse, flat, expanding, thrice as 



large as the calyx. 

 STAMiNAj^/amenismany, (generally 24,) awl-shaped, collected 



into a little head. Anther* upright, as long as the calyx. 

 Flowers with Pistilla, fewer, beneath the other. 

 Calyx. Perianthium as above. 

 Corolla. Petals 3, as above. 

 Pistilla. Germina numerous, compressed, forming a little 



head, bulging on the outer side, ending in very short styles. 



Stigmata acute, permanent. 

 Pericarpium, none. Receptaculum globular, and set round 



with the seeds so as to form a globe. 

 Seeds numerous, oblong, compressed, encompassed length- 

 ways by a broad membranaceous border, bulging on one 



side, tapering towards each end. 



PINUS. 



lowers with i 

 Calyx, none, 



Flowers with Stamina forming a hunch. 



e, but the gaping scales of the bud. 

 Corolla, none. 



Stamina. Filaments many, united below into an upright pil- 

 lar, divided at the top. Anther* upright, naked. 



