## Biology 211: Taxonomy of Flowering Plants

### Sample Date and Description of the Algorithm Used for Identification of Flowering Plant Families

Binary data (0=absent, 1=present) for each family in numerical sequence for each character.

The search algorithm is this: Determine which of the 411 families are coded as present (1) for each and every character that has been selected.

In the sample data below, first the character is listed and then the binary code for each of the familes, 80 families represented in each row.

```
1 WOODY PLANTS(EXCL. SUFFRUTICES)
11111111111111111111111111111111111111111111111111111111111111111111011111111111
11111111111111011111111110111011111111111111111111111111111111111111111111001111
11111111111110111111111111111111111110111111111111111111111111111111111111111111
01111010100001111011001101101110010111110111010110001001100000000000001100111001
11111100110001110110110000000000000000010000001000010001101110000101011111100100
00000100011
^
```

[Example: family #401 PHILYDRACEAE does not have woody plants. If character #1 is selected, the PHILYDRACEAE is ruled out.]

```
2 HERBACEOUS PLANTS(INCL. SUFFRUTICES)
00000000000000100010000110111001100010000010001100100101000000000000111000101000
00001111101010110011101111111111100110010001000000011000000000000000001001110100
00000001000001000000010000000000000101001010000010001011000000000110100011101011
11100111111110010111111111111111111110111111101111111111111111111111111111111111
11111111011111111101111111111111111111111111111111111111010011111111110111111011
11111111111
3 AQUATIC PLANTS, LEAVES FLOATING OR SUBMERGED
00000000000000000000000000011000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000001
00000000110110000000000000000000000000000000000011110100110000000010111000010010
00010001000000000000001110001111111110001001000000000010000011100000000000000000
00000100000
4 CHLOROPHYLL ABSENT(PARASITES OR SAPROPHYTES)
00000000000000100000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000110000
00000000000000000000000000000000000001000000000000000000000000000000000000000000
00000000000000000000110000000000000000000000000000001000000000000000000000000000
00000000000000001000000000110000000000000000000000000000000000000000000000000000
01111000000
```