Table 1

External and internal morphological characters used to segregate the species of Codium considered in this study. The species included are the 8 dichotomous taxa known for the coasts of Peru and Chile

Caracteres morfológicos externos e internos utilizados para diferenciar las especies de Codium consideradas en este estudio. Estas especies incluyen los 8 taxa dicotómicos conocidos para las costas de Perú y Chile


Unidentified species from Caldera Bay

C. fragile
(Suringar) Hariot

C. contractum
Kjellman

C. fernandezianum
Setchell

C. foveolatum
Howe

C. peruvianun
(Howe) Setchell

C. pocockiae
Silva

C. tomentosum
Stackhouse

C. unilaterale
Setchell & Gardner


Thallus length (cm)

Up to 40

Up to 40

Up to 12

Up to 100

Up to 10

Up to 10

Up to 10

Up to 90

Up to 30

Diameter at base of branches (cm)

0.2 0.8

0.3 1

No information

0.5 1

0.3 0.7

No information

0.3 0.7

0.3 - 0.5

0.2

Diameter at tip of branches (cm)

0.2 0.3

0.2-0.4

No information

No information

No information

No information

No information

0.1 - 0.2

0.5

Branching pattern

Dichotomous
up to 6 orders

Dichotomous
up to 9 orders

Regularly dichotomous,
flat and broad.

Dichotomous,
with unequal
growth

Subpalmate, 2-5 times, rather irregularly dichotomous

Dichotomous

Divaricately dichotomous

Dichotomous
up to 9 orders

Dichotomous to subdistichous, with unequal growth of one of the primary branches

                   

Holdfast

Broad, spongy

Broad, spongy

No information

Broad, spongy

No information

No information

Broad, spongy

Broad, spongy

Broad, spongy

Utricle

Shape

Cylindrical- clavate

Clavate

Clavate

Clavate

Cylindrical-clavate, slightly enlarged and abruptly contracted

Clavate

Clavate

Cylindrical or slightly clavate

Cylindrical to clavate

Length (m)

500 - 1200

600 - 1500

No information

800 1250

800 1150

500 - 1000

500 - 1250

420 1050

1250

Diameter (m)

180 - 450

150 630

No information

50 500

200 500

70 - 240

65 - 300

65 275

65 - 350

Tip

Rounded- apiculate, terminating in a sharp mucron

Acuminate, terminating in a mucron

Not acuminate

Rounded

Rounded with cuticle foveolate or rugulose

Rounded

Rounded

Rounded or tending to be pointed

Slightly conical to smoothly rounded

Wall thickness ( m)

10 - 20

2 3

No information

15 30

6 13

3 40

1.5 - 32

44

16

Hairs

Two (1 specimen)

Long hyaline, variable in frequency

numerous

One to two

No information

No information

Two or more

Common, numerous

Commonly arise from the upper half

Medullary filaments diameter ( m)

85 - 250

26 - 112

No information

No information

No information

No information

22 - 39

20 - 50

No information

Gametangia

Shape

Ovoid or fusiform

Ovoid or fusiform

No information

Elipsoidal

Unknown

Ovoid to fusiform

Ellipsoidal

Ovoid, oblong or fusiform

Ellipsoidal

Number per utricle

One

One to three

Numerous

One or two

Unknown

Two or three

One to three

One to four

No information

Length (m)

200 - 425

220 - 450

No information

315

Unknown

200 350

225 - 350

165 - 340

300

Diameter (m)

120 - 240

75 - 170

No information

75 90

Unknown

60 - 110

35 80

50 110

75

Insertion (distance below apex of utricle)

One-half the length of the utricle

One-half the length of the utricle

No information

One-half to two-thirds the length

Unknown

No information

One-half to two-thirds the length of the utricle

One-half to two-thirds the length of the utricle

Supra medium

References

1-7, 9, 12-14

2, 6

6

4, 11

4, 11

10

3, 8

6, 12


(1) Ardissone (1888), (2) Svedelius (1900), (3) Howe (1911), (4) Howe (1914), (5) Hylmo (1919), (6) Setchell (1937), (7) Silva (1951), (8) Silva (1955), (9) Silva & Womersley (1956), (10) Silva (1959), (11) Dawson et al. (1964), (12) Meneses & Hoffmann (1994), (13) Trowbridge (1998), (14) Hubbard & Garbary (2002)