CHAP. II. 
OF DESCRIPTIONS. 
443 
respect to the petals, insertion, proportion to the ovarium and 
corolla ; whether separate, or combined in several parcels ; 
whether in one series or several, of equal or unequal length. 
Filaments, their form, length, and surface. Anthers, their mode 
of insertion on the filament; dehiscence with respect to the 
axis, whether inwards or outwards, and, with respect to 
themselves, whether transversely or longitudinally, by pores, 
or otherwise; their form; * structure of the endothecium ; 
surface, colour, size ; the proportion they bear to the size of 
the filaments, the number of their valves, the nature of the 
connectivum. 
Pollen. Its colour, form, size, surface ; whether distinct or 
cohering ; and * mode of bursting. 
Disk. If present, its size, figure, texture, and station. 
Ovary. Its apparent, as well as theoretical, structure; 
the position of its carpels with respect to the organs around 
it; its surface; mode of division; number of ribs, if any; 
veins ; cells. Ovules, their number ; insertion upon the 
placenta ; position with respect to the axis of the ov'ary ; 
the situation of their foramen. Styles, their number, length, 
figure, surface, direction, and proportion. Stigmas, their 
number, form, and surface. 
Fruit. Its texture, form ; whether naked, or covered by the 
remains of the floral envelopes ; whether sessile or stipitate ; 
mode of dehiscence, if any ; number of its valves and cells; situ- 
ation of the placentae ; nature of its axis ; number of its seeds. 
Seed. Its position with respect to the axis of the fruit, 
mode of insertion, form, surface ; the texture and nature of 
the testa, aril, and other appendages, if any ; * position of 
the raphe and chalaza. Albumen, its texture, if any. Embryo, 
its direction ; position with respect to the axis of the fruit, to 
the hilum of the seed, and to the albumen ; the proportion it 
bears to the mass of the latter ; the form of its cotyledons and 
radicle ; * its mode of germination. 
The medical and economical qualities. 
Its distribution on the surface of the earth. 
The points in which it agrees or disagrees with other species. 
Descriptions, it must be observed, are of two kinds, collec- 
tive and specific : the former explaining minutely the characters 
